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Jack's Girls

Chapter Two: Impressing Sierra with 'after-school activities'

Disclaimer: I own nothing.

A/N: Here's part 2 of Jack's Girls, the main focus of this chapter is Sierra, As I said in the Author Note for the previous chapter, I DON'T like her, at all, she's only here because of the utter lack of female characters in Transformers Prime, I may bring in some other female characters (most likely will be Cybertronians), I don't know yet.

A/N2: This is a rewrite/repost of Auumaan's "Jack's Girlfriends", all credit for the original story goes to him.

By TheLoneOne (Full credit goes to Auumaan for the original chapter)

Jasper High school, Jasper, Nevada

It was another day at school and part of Jack Darby was actually looking forward to it. Sure the classes were rather uninteresting as they usually tended to be, but one person in particular within chemistry class highlighted his day of hopefulness; Sierra.

He wasn't going to lie, part of him was just as eager to head to the Autobot base where Miko was currently residing, she'd somehow managed to con her way into getting time off from school to work on some extra credit assignments, though he figured she probably wouldn't actually do any of it. He'd figured out almost immediately why she'd done it; so she could spend as much time as possible doing 'practical biology homework', as she'd so eloquently whispered to him, which basically translated to 'fragging your brains out as much as I can'.

It had been a few days, three to be precise, since the 'incident' with Ratchet's Pink Energon, and the recent change in their 'friendship'. Thankfully, the Medic hadn't seemed to notice anything had happened, but Miko would not stop texting him or sending pictures of her bare breasts or even her bare ass.

He closed his eyes and remembered one he'd gotten from her the night of the second day, Wednesday night if he remembered correctly, since the 'incident' had happened on a Monday. The picture had basically consisted of a very naked Miko Nakadai reclining on her bed, smiling at the camera, he still hadn't figured out how she'd taken it, with her legs spread wide and pulled back, and her arms between her legs, keeping her thighs in place, her hands had been between her legs, spreading her smooth labia for him to see, both the inner and outer lips were swollen and dark pink with arousal, her clitoral hood had been pulled back, exposing the tiny nub, which, along with the rest of her spread pussy, had been glistening with moisture.

And if that hadn't been enough, she'd also managed to spread her pert buttocks wide enough so that the valley between them was clearly visible, as was the tight ring of her anus. He wasn't ashamed to admit, that picture had got his blood pressure up, and not in a bad way. He'd spent a good 20 minutes taking care of the resultant physical side effect seeing that picture had caused, and, as payback, he'd decided to send her a picture of the aftermath, after checking with her to make sure it was ok. Her response had been something along the lines of her being sorry she wasn't there next to him to help him 'clean up', as she put it. He had a fair idea what she meant by that. Not for the first time, he thanked Primus, and any other light-sided god or goddess he could think of that the Autobots weren't monitoring their cell phones. Having Bulkhead or Arcee, or worse, Optimus and Ratchet, see those pictures, well, it most likely wouldn't have been pleasant.

She also constantly gave not-so-subtle hints at wanting some alone time with him whenever they had an opportunity. Even though she hardly left him alone she made it clear that this was merely a 'sex-friendship' they were having and that he was okay to go for Sierra, but he just wasn't sure she was being honest with herself when she said it.

Despite how much of a troublemaker she usually could be, Miko could look rather beautiful and alluring whenever she looked directly into his eyes, well, he'd only realized that after the Energon incident.

'I wonder if it'll eventually wear off, and if/when it does, what will happen between me and Miko then?' he thought. He begrudgingly admitted to himself, a small part of him didn't want it to wear off. Quickly shaking this train of thought Jack sat upright when the teacher walked around the classroom to make sure none of his students were sleeping.

He looked up ahead to see Sierra's back as she herself sat upright suddenly, his eyes drooped and he sighed whenever the girl looked at him directly during their seldom encounters, for some reason, he'd lose his cool. If he hadn't had the Autobot base to go to everyday then he would be around more in Jasper where she and him could talk more often, get to know each other better and eventually hook up. That was daydreaming at best, but for some reason he was feeling lucky today, ever since the Pink Energon incident he was feeling more confident in his 'lady luck'. Especially after having sex with Miko shortly after, Jack still didn't know what to label this circumstance as just yet, but he pegged it as having some kind of 'chick magnet' field attached to him due to the Pink Energon.

'Maybe I'll ask Ratchet later and tell him what happened, there might be a way to get rid of whatever this is before things get chaotic, but...' Jack thought to himself and looked forward at Sierra's seat one more time only to see the redheaded Cheer Captain looking back at him with a smile. 'Scrap it, a cure can wait, right now my main goal today is to ask Sierra out.' He finished his thought when the bell rang again, signaling the end of the period, and the final lesson of the day.

Little did he know Sierra herself was feeling 'different' today; as soon as chemistry class started, she'd snuck a few looks over at Jack who had been jotting down some notes. She sighed, she had wanted him to ask her out for some time yet there were so many intrusions in daily life. One of which was that he was hardly ever around in Jasper, or at least in the more student heavy places like the mall or skate park. Her blonde friend somewhat disapproved of him and Sierra herself was guilty of hubris due to the popularity circle she unwittingly found herself a part of. It was 'expected' of her, by her circle of peers, to hook up with one of the football players, or 'jocks' as they called themselves.

She was the 'popular' girl in school meaning a lot of guys were pining for her and the ones she wasn't interested in might pick fights with Jack if she showed her interest in front of them. She figured with him and his mother trying to live without problems that he didn't need that kind of attention. So she sought out her crush during after school hours when no one else was around, like when he was at his job at the K.O fast food joint, and she went there to talk to him.

Of course sometime recently her enthusiasm became somewhat deflated when another 'girl or woman', she wasn't sure, was sharing time with Jack.

'That couldn't have been his mother, could it? I mean borrowing his motorcycle is one thing but wearing a leather jump suit is a bit odd for a nurse who's working all the time.' She thought doodling a heart in her notebook as she looked at him from the front. She quickly turned away before any of the classmates would take notice and give them childish trouble.

She felt a strange feeling come over her, like she was suddenly feeling more confident, and sure of herself, and over the past three days, since Tuesday, she'd suddently noticed how much more good-looking him seemed to be, she'd found herself letting her eyes roam over his body, picking out faint hints of muscle build up, she'd found she'd liked what she'd seen.

As she thought about that, she suddenly felt her cheeks and neck heat up in a way that she knew wasn't a blush, she felt her small, but firm and pert breasts swell a litle, felt her nipples harden, and even felt a rush of warm between her legs.

'What the hell?' she thought. Suffering sudden bouts of intense sexual arousal wasn't something she was accustomed to, at least not in school. Hoping no one would notice, she slipped a hand under her desk and quickly up her skirt, brushing her fingers against her thong covered vulva, she shivered lightly, she could already feel the dampness of her pussy.

'Yep, definitely horny. But why now of all times?' she wondered. Sierra couldn't be patient. Not anymore at least, today after class she would talk to him to see if there was another person in his love life, if not then it would be her moment and nothing would deter to her. Not even the sudden urge to rub herself off at the thought of Jack and her alone, it didn't help matters that that stray thought had sent a tingling sensation through her breasts and pussy, which had of course, caused her clitoris and nipples to fully harden, and her clit had started to throb a little, demanding attention.

'Where did this feeling come from? It's like my body is suddenly set to 'wild libido' mode or something.' She wondered and ignored it the rest of the class with enduring discipline.

After class was over and the school day ended Jack volunteered for cleanup duty along with Sierra that afternoon. Normally the teacher did it, but the worn out chemistry professor wasn't about to pass up a chance to go home early. So he left the classroom and thanked Jack and Sierra before heading out, the two teens stood awkwardly next to each other while they picked up this and that.

'I should talk to her now...' he thought as he picked up a rack of glass test tubes and gently put them back in their proper storage cabinet.

A couple of minutes passed, during which Jack received yet another text from Miko about when he was coming to the base. Arcee and Bumblebee were out on a mission, so the plan was for Jack and Rafael to ride with her and Bulkhead later that day when he came to pick Jack up after school, but the plan had changed since he was finally alone with Sierra for once. He texted her back and told her to go on ahead without him and let her know that he was going 'for it' with the redhead today. Miko knew he would but still sent a frowning smiley face back to him in a text.

'What is it with that girl? Must be the jealous type or maybe she's feeling the urge and needs me there to accommodate. That girl is as horny as she is hyper.' Jack figured and stooped over to pick up a textbook when Sierra coincidentally did the same thus leading to their hands touching.

He blushed a bit and stared back into her delicate face with a genuine smile. After a moment of awkward silence he lifted his hand and let her pick up the book, the two stood facing each other until one of them spoke.

"So...I'm free now, feeling going out for a shake?" Jack asked feeling like he could've said a better pick up line.

"Of course, but I kinda want to know something first." Sierra asked sheepishly looking to the side.

"Sure, what is it?"

"Are you together with someone?" She asked hoping he said 'no' and that the woman at the drive through really was his mom, albeit it was a weird idea for a nurse to wear a jumpsuit straight off work.

"Not at all, that woman at the drive through is definitely not my girlfriend, on that you can trust me." Jack answered and sensed relief coming from her.

'That's good...' Sierra thought.

Feeling bold he decided to just straight out ask her. "Sierra, would you go out with me?"

Her face lit up and she smiled in joy, forgetting the pile of text books she was holding, she threw her arms around his shoulders in a tight hug. "Yes!" she then pulled herself back and regained her composure. "I mean I totally want to, if you really feel like that." She played off the last bit coolly trying not to look over-excited, but she failed.

"Of course I do, I've wanted to ask you out for the longest time, but I've just been so-"

"Distracted?" She finished for him leaning in close in an intimate way. Her hands touching the fabric of his shirt affectionately. Jack knew the Pink Energon radiance he was giving off would soon push things into the extreme and neither of the two would have any idea, well, she wouldn't, not that figured either of them would care all that much since they were in each other's company.

"Yeah, in a way, but honestly-" Jack was cut off when Sierra suddenly pressed herself forward and smothered his lips with hers. He knew her unexpected surge in sexual promiscuity had been brought on by the Pink Energon 'radiation' as he'd coined it, that he knew he was giving off, though he wondered why, over the past three days, why every female he was in close proximity to hadn't been effected, he surmised it only effected females who were already attracted to him.

'That makes sense.' He thought.

His hormones in turn were starting to go nuts as well, he could already feel his body responding to the kiss, he felt his skin flush, his pulse and body temperature rising and his shaft harden, after barely agreeing on a date with the girl. He didn't care, he decided, he just wanted her.

'You shouldn't be using them like this.' A small voice, that sounded suspiciously like Optimus, said in the back of his mind.

'I can't help it.' The rest of Jack's mind replied.

'You can. You know the others would not approve of you taking advantage of Miko and Sierra like this.' Came the voice.

Jack ignored it, though he suspected the voice was right, Prime certainly wouldn't approve, neither would Arcee.

He wrapped his arms around her and leaned in to the kiss and felt her soft pink lips cuddle on his in a heated lip lock of unrestrained desire. Things soon fell into motion.

Sierra, for her part, was in heaven, she was finally officially dating her high school crush, and not only that, she was making out with him in an empty classroom. She moaned into his mouth as she opened her lips and extended her tongue, feeling his meet it and the two started an age-old dance.

She started to run her hands up and down his back, under his shirt, then over his ribcage and around to his chest and stomach, she could clearly feel the muscles now, under his skin. She doubted he was sporting a Six Pack, but he definitely had some muscle on him. This little discovery of course, only served to add fuel to her fire, she felt her nipples start to tingle as they hardened against her shirt, and now she could definitely feel her juices flowing from her soaking pussy. She instinctively started to grind her hips against his, and she felt the unmistakable bulge of an erection press into her groin.

'Holy shit...he's packed, and not just in the muscle department...and on that note, where does he go when he's not at work or school? What does he DO to get a body like this...?' her mind raced with questions and she ran her hands sensually over him.

Jack, for his part, was living his fantasy alright; his redheaded eye of affection had her hands underneath his shirt stroking along the skin of his back and torso while he pressed against her, moving his face down, kissing along her neck.

Since they were in the classroom, after school hours, he knew the odds of someone disturbing them was minimal; only Miko and Raf were around yet they were out by the front waiting for Bee and Bulkhead to pick them up. Arcee would come for him soon too, he remembered, if he didn't go with Bulkhead and Miko, so he had to make this quick, much to his dismay.

Sierra's right leg hiked up and curled around his calves as the heat of the moment started to increase the longer the two felt each other up. The redheaded Cheer Captain slowly opened her eyes from the state of bliss she was currently feeling and looked down into Jack's blue eyes before nodding slowly.

'Do it, pleeeaaassseeee......' she thought 'I need it......badly......'

'Careful, or you'll turn into a slut, you've already got those rumors floating around the school, do you want them to be right?' a voice in the back of her head asked.

It was true, being the 'Popular Girl' of the moment came with the good and the bad. The good was that she got the attention of guys, so she could easily choose who she wanted, without any fear of them being stolen from her. The bad was the rumor mill. Several jealous and jaded girls and already started several, saying that she spread her legs for whom ever she wanted, and that she was only after the good looking guys like Jack for one thing.

She told herself it wasn't true, but a small part of her still felt the pain of the rumors.

Jack sucked in a breath steadily. This was it. Crunch time. She had just gave him 'full access' permission when he was still just treating her delicate skin with the soft touch of his hands on her thighs, along with his lips at her neck. The perfect "Smooth Operator" as he'd heard Arcee referring to him from time to time. Her purple skirt now nudged upward letting Jack see the white of her panties coming into view, he could clearly see the damp patch on the cotton fabric, which had made them semi-transparent as a result, he could faintly see her labia, and the dark gap between them, then he realized, those weren't panties she was wearing, it was a white thong.

While he was distracted by the view of her curvaceous petite legs Sierra took that opportunity to quickly pull her long-sleeved/t-shirt combination top up over her head as a means to surprise Jack when he looked back up at her.

Needless to say he got the shock of his life when he turned his view back to Sierra's now naked chest staring back at him.

'Primus......First Miko goes topless under her shirt, now Sierra does too? Damn Darby, you are one lucky bastard...' he thought.

Sierra giggled when she saw his jaw drop, truly she did have a good level of self-confidence but often felt insecure about her natural assets, she was glad to see that Jack appreciated them plenty. Boy was she glad she decided not to wear a bra today.

"Sierra..." Jack trailed off when his eyes stuck on her ample B-cup size boobs that were actually a bit larger than Miko's.

'But Miko's are still nice' he thought.

"Like what you see, Jack?" She asked with a lusty gaze and alluring voice before putting her left hand under his chin seductively. His head lifted up to meet her loving gaze in her green eyes, his hands still held her hips and the two were pressed comfortably against each other as they moved away from the desk, and stood against the wall of the classroom.

"You bet I do, then again I liked everything about you since the start of this school year when I saw you in class for that first time." Jack confessed losing himself in her stare.

Sierra blushed, she had known that because of her looks and cool casual stature that boys often stared at her when walking down the hallway. More likely they were staring at her ass when her hips swayed, but that kind of attention got old real quick when some of the more perverted admirers, like Vince and his brain-dead cronies, tried taking revealing pictures of her in the locker room or when she was sitting down somewhere with her legs uncrossed. Thankfully her friend, Annie, the blonde girl she had befriended at the start of the year, who was often seen next to Sierra, made sure none of the perverts ever kept the pictures they took. Either by breaking their cell phone cameras or punching their lights out, she always made sure to have her friend's back and prevent any perverse imagery reaching the internet.

The redhead got bold and grabbed Jack's wrists, lifting them up off her hips so she could place them on top of her breasts. Miko did this exact same thing when she and Jack were 'starting', but now it was different simply because it was Sierra; the girl he'd been crushing on all year.

Jack played with her orbs a little more by stroking them in multiple directions eliciting a hearty low moan from the redhead, the experience he got from Miko certainly paying off. While he was playing with her breasts she sneakily slid her hands down to his zipper and undid the top of his pants shortly after.

'Let's see what you're packing, Darby.' She mused to herself with a smile.

Jack momentarily ceased stroking her breasts when he noticed a cool breeze of air flowing across his now exposed member, he felt his cheeks heat in a blush. Sierra's fingers gently slide over and explored Jack's sensitive shaft, her hands gently lifting it, her fingers gently tracing the veins that stood out, and gently pulling back his foreskin so she could get a good look at the swollen head, she estimated he was about 5, maybe 51/2 inches long, and maybe an inch across at the base, not overly big, but big enough, she decided, while he in turn played with her touch-sensitive mounds, his finger-tips gently tweaking and stroking her erect little nipples.

The heat of the moment increased in the midst of the foreplay when Jack pressed himself forward against her body boldly so he could press his lips around hers again. She accepted with just as much enthusiasm by wrapping her arms tightly around his neck and letting his tongue dive past her lips.

'Her mouth...it tastes so sweet...' his lust addled mind pointed out.

Sierra felt herself slurp on the spongy intruder in a wrestle of the lips, she locked her lips around it and started to suck playfully, her eyes closed and her face a great shade of blushing red as she made out with the boy of her dreams.

Jack's hands slid off her breasts and went down her lower back to grip her soft butt in his palms. Sierra mewled in his mouth and felt the urge to do more, she was getting impatient. She wanted no more of the foreplay for the moment, she'd had the starter, now she wanted the main course; Jack Darby. The influence of the Pink Energon radiation bleeding off of Jack prompted these urges but only after a certain level of pheromone arousal reached its peak, not that she'd ever make the connection.

A few class desks were shoved to the side as they approached the teacher's desk. Pulling away from him, Sierra looked at him with undisguised lust and wanton desire.

"Get on the desk..." she ordered, her voice thick with need, Jack wasted no time in complying, and soon found himself laying on his back on the hard wooden desk. While it wasn't exactly comfortable, Sierra made up for that by sitting over his waist. She leaned down and succulently locked his lips with her own again but this time it was her tongue diving inside to taste his mouth.

Sierra's hands hastily unbuckled the belt of his pants and tugged them down a little, before reluctantly breaking the kiss, then lifting herself off, allowing him to remove his pants and boxers, along with his shoes. Once he was more or less naked from the waist down, minus his socks, her hands were now pulling his shirt up, feeling up his broad chest, desperate in her mission to get him naked.

Once she'd got the last of his clothes off, she ran admiring eyes over him, then, getting a devilish idea in her head, stood up on the desk, she sent a naughty wink down at Jack and then proceeded to tug down her skirt, then quickly pulled off her boots.

Jack watched in awe as she stripped herself before him, soon enough her skirt was on the floor along with her boots, leaving Sierra in only socks, the tight white thong he had seen earlier, that she was now pulling down to her ankles.

Jack felt his meat twitch and stir when he gazed upon Sierra's beautiful naked body, her neatly trimmed virgin pussy showed itself in plain sight before him. He stared longingly at her pussy, which, unlike Miko's wasn't completely smooth, there was a thin patch of dark red hair, trimmed very short, just above her labia, he had to restrain himself from reaching up to ravish it.

Sierra noticed that look in his eyes and looked beneath her at the towering erection before internally deciding what she wanted to do.

"I think you'll like this, Jack." She purred and turned around, then stepped back, and knelt down, to where her lovely ample butt was all he could see, her knees were on either side of his ribcage. He had a clear view of everything, he could clearly see the small puckered ring of her anus between her cheeks, and below that, her puffy, wet sex.

He was about to protest until she lowered herself down and placed her pussy over his face.

"Sierra..." Jack stumbled before feeling the Pink Energon suddenly kick his hormones into overdrive, and he let out a gasp as her pussy came into contact with his mouth, which meant he got a lung full of her sweet, slightly musky aroma, at the same time, he felt Sierra's breath wash over the exposed head of his penis, before he felt her hot wet lips wrap around it, followed by her very warm tongue, and a fair amount of saliva, as her hands gently started massaging his shaft and scrotum.

As her pussy pressed into his mouth, and he decided to let his tongue explore her, he felt her mouth start to glide up and down his shaft, sucking gently but firmly, while her tongue danced over it's surface.

'Jeez......she's good......' he thought, then he decided to focus on what was in his mouth, and he started to lick her lips while gently sucking them and her clitoris into his mouth, capturing her tangy flavor on his tongue, which he started to probe under her hood, and gently past her lips, all the while keeping his eyes locked on the puckered entrance of her ass.

Moving his tongue further up her pussy, he gently licked over her urethra, eliciting a squeak of pleasure from her, then he gently traced his tongue around the entrance to her passage, which made her moan and shudder in bliss, the vibrations of the moan bieng transferred to the penis she was lovingly nursing on, her head bobbing up and down in a steady rhythm, not too fast, and not too slow.

Meanwhile, his hands were gently stroking up and down her back, as well as caressing and kneading her ass cheeks, they were very firm, and very smooth, not a single blemish.

Pulling his mouth away from her pussy, he heard, and felt, her moan of protest, but that moan of protest quickly turned into a moan of passion when he quickly licked his index and middle fingers on his left hand and gently pushed them into her clenching, hot sheath, taking care to explore that part of her, since he'd not got the chance to do this with Miko at the beginning of the week.

At the same time, he licked his right index finger, and pressed it against the tight ring of her anus, he felt her tense up, the ring of muscle tightening in reflex, before she relaxed, and he slowly, gently, worked his finger in, until he was in to the second knuckle. His other fingers meanwhile, were still busy exploring inside her hot, moist vagina, turning his hand, he gently started to massage a small spongy area about an inch and a half inside the front wall, he knew from a few times he'd spent browsing some of his mother's medical books at home what this was, her G Spot. Smiling to himself as he resumed licking her hard clitoris, which got another moan from her, he gently started to massage this area with the with the pads of his fingers, this got an even stronger moan from his partner.

'Hmm...I'm really good at this...and damn, she tastes good...' he thought, he then pushed his two fingers in deeper, wanting to see if he could reach her cervix, which he did. At the same time, he pulled his right index finger out of her ass, only to replace it with his middle finger, which he was slowly sinking in to the second knuckle, his index finger quickly found it's way to the area between her pussy and ass that those same textbooks had told him was her perineum, which according to the book, was loaded with nerves.

'I wonder...' he thought, as he started to stroke the area, and gently press on it.

She moaned and shuddered.

'Yep, gotta remember that one!' he thought with a grin as he sucked her clit.

For her part, Sierra was having the time of her life. She was laying naked on top of her equally naked boyfriend, happily sucking at his surprisingly delicious tasting shaft while he was, rather expertly in her humble opinion, feasting on, and deeply fingering her wet pussy, AND fingering her ass to boot. She usually didn't give much thought to anal play, but damn, this felt good, she was definitely willing to let him play back there more often, and maybe next time, since she knew they didn't have the time now, she'd let him try using something besides his finger.

'Oh god......he's definitely good at this......' she thought.

For now, she decided to focus on the meal that was in her mouth, and return the pleasure she was getting. After spending several minutes sucking hard on the shaft, and letting her tongue play around the crown, and even under the foreskin, which, to her delight, coaxed some groans from him, she slipped the organ from her mouth, and planted open-mouthed kisses and little licks down along the side until she reached his jewels.

With a slurp her lips started lightly sucking his right testicle while her left hand softly massaged the other. Jack groaned in pleasure in response, and started gently thrusting his hips up against her, she in turn, started rocking her hips against his face and hands.

Jack's gentle treatment was causing Sierra no end of pleasurable torment, her body started to convulse and thrash around as she felt her climax building, reluctantly, she lifted her hungry mouth from Jack's genitals, deciding to rub her face against all that was on offer, as she moaned out her pleasure.

"Jack......" she breathed "Oh yeah......eat me Jack, use your fingers--oh! Just like that! Yes....Mmmm......you're real good at this......" she moaned.

Her rear bounced carefully atop Jack's face as he continued eating what was in his opinion, the most delicious meal he'd ever had, Sierra kept herself busy by now positioning herself so she could easily place her mouth over the tip of Jack's cock. She could sense he was getting close, and she wanted to taste it. Drink it even.

'Hooo wow!' Jack mentally exclaimed as Sierra continued lowering her head down into his lap with his manhood sheathed deep into her mouth, when he was fully inside, and his tip was being massaged by the back of her mouth, he felt her cup his sac in her fingers, before pressing it gently against her top lip, and against her nose, then he felt her breathe in deeply. The hot, wet flesh at the back of her throat, as well as her tongue and the rest of her mouth enveloped his cock completely forcing him to restrain himself from grinding his hips against her face.

The redhead's eyes closed in passion, and she moaned with lust when it dawned on her that they had gone this far already and she planned to go further, much further, she knew this was meant to be and knew at the end of this day she would be left in the happiest mood.

Opening her eyes again, she began withdrawing her head a bit before sliding it back down, letting his tip rest against the back of her throat, he moaned audibly and, pulling his fingers out of her, gripped her ass cheeks harder, kneading them, so he could repay the effort she was putting in.

Jack dove right back in and hungrily ravished her dripping vagina, gently licking her most sensitive spots, collecting the juices that flowed into his mouth and hungrily swallowing them down, as she rocked her hips, pressing her mound down against him in a steady rhythm, her own climax was building, as was his. He nibbled on her clit and occasionally returned to sucking on it, his lips kissed all around the hood and her swollen labia, before he dove his tongue past her folds to whip around inside her pussy, finally sinking it into her hot wet entrance.

"Mmmm......" he moaned, making sure the vibrations were passed on to her sensitive flesh. He got the reaction he was hoping for.

"MMMmmmmppphhhh......!" Sierra cried out, her orgasmic moan of bliss muffled by the shaft she was hungrily sucking.

She clenched her thighs on Jack's head, pressing her pussy down tightly onto his mouth and tongue, gushing in climax, while she in turn felt Jack's penis swell, and second later, several bursts of hot, thick salty liquid shot into her mouth, splashing against the roof of her mouth, her tongue, and even the back of her throat. Sierra closed her eyes and held her head firmly on his shaft until the steady spurts of semen slowed to a trickle, then stopped.

'Mmm......he DOES taste good......That was incredible...I never thought getting my pussy eaten could feel so good, or that he'd be so skilled at it......' she thought.

For his part, Jack was still riding the waves of post-orgasmic shudders that ran through his body, and he took deep long breaths, regaining his strength, the fact that, at that moment, his nose was being pressed into Sierra's wet pussy, and even against her ass as she moved to sit up before lifting herself off him, didn't bother him in the slightest. In fact, he rather liked it.

'Jeez......that was incredible, she really tastes, and smells, great, and I had no idea she was so good with her mouth...' For a brief moment, he imagined what it would be like having both Miko and Sierra sucking him at the same time, but he knew that probably wouldn't happen.

Sierra then got on her hands and knees, climbing off of him and sitting next to him, looking down, she smiled lovingly at him, he noticed her cheeks were bulging slightly, then as he watched, her mouth opened up to show a slightly dripping pool of sperm before she closed it to swallow. Jack instantly felt his member regain some of its solidity when he saw her audibly gulp down his cum.

"Oh you are incredible." Jack said in awe before Sierra winked and turned herself around on his torso to face him. She leaned forward and cupped his face in her right hand with a naughty look in her green eyes.

"If you liked that then you'll love this, Jack." She whispered seductively and moved back so she could straddle his now ready manhood, that was standing attention, glistening wet, pointing straight up at her. He was up for round two the moment he watched her swallow down, he may have needed more time otherwise, but this girl was totally worth it.

Her glistening folds were barely scraping the tip until she reached down to guide him in, gradually she started pushing her hips down letting Jack's cock dive deep into her opening, the combination of saliva and the wetness from their mutual orgasms made his entrance effortless. When she'd only got 1 inch down his shaft, barely past the head, she felt her hymen touch the hard fleshy tool, with one last look to Jack she held both of his, smiled, and with a deep breath, pushed her hips all the way down.

"Aah!" Sierra bit her bottom lip and clenched her eyes tightly as a newfound pain shot through her sensitive area, Jack never let go of her hands while she trembled adjusting the pain. Soon her shaking stopped and she opened her eyes to look into his, with a tender smile she leaned forward to kiss his lips as she took several deep breaths, adjusting to him.

Jack let himself get lost in the intimacy of the kiss and felt like he had touched paradise by knowing he was making love to the girl he always pined for. He didn't care that the pink Energon that hit him might've played a large role in this happening, he just wanted to enjoy being with this redheaded vixen. 'Living the dream.' He thought letting himself go with the flow.

His hands went up to cup her butt as she amorously rocked her hips faster. His dick was sheathed all the way inside her soft tight pussy and now he was thrusting himself against her to increase the intensity.

Sierra's head tilted back in response, feeling Jack's length thrusting itself into her core, the pain of initial penetration giving way to a sense of fullness that she'd never known before. The feeling was exhilarating and made her whole body feel like it was on fire, in a good way.

Jack's hips continued thrusting upward into her body, while his hands squeezed her small butt in his palms. Sierra's back arched, raising her upper body to where the boy could clearly see her breasts bouncing before his face. Her hands planted themselves against his chest as she rode him cowgirl style, his length repeatedly and slickly slid itself into her pussy energetically while she humped her hips on him.

The desk they were lying on was creaking as Sierra rode him, Jack removed one of his hands and placed it on her right tit to cup and fondle the soft warm mound in a further attempt to excite her. Obviously it worked since Sierra was audibly moaning her satisfaction which also caused her to rock her hips even harder.

"Ooaah! Oohh J-Jack..!!" She cried out and arched her back when she felt her pussy start to clench and convulse with a second orgasm.

Jack in turn felt his own climax building, thanks to the tight, warm and wet sensations of her inner walls pressing hard against his shaft. Suppressing a growl of ecstasy, he thrust his hips up as he felt his balls tighten, and a second climax hit him, and Sierra's cervix was coated in several spurts of semen, though there wasn't as much as before.

'Primus......that was great......It's actually quite hard for me to put a comparison to Miko......Oh scrap, I hope Sierra never finds out about that, that won't be pretty.' He thought.

'Then you'll get what's coming to you.' Said a voice in the back of his mind that suspiciously sounded like Starscream.

Both were sweaty and breathing a bit hard, not to mention mostly nude with the exception of Jack's trousers dangling from his ankles.

Sierra had a dreamy look on her face as she nuzzled her head against his broad chest, soon she rose herself up and kiss him tenderly on the lips in a romance of sexual aftermath.

When she gently let go Jack looked confidently in her blushing face. "You know this will change things between us, right? Assuming you want to be my-"

"Girlfriend? Of course I do!" Sierra piped happily and wrapped her lovely arms around his neck like she belonged there.

'Girlfriend...Sierra's my girlfriend!' Jack mentally cheered feeling as though he could die tomorrow and still be radiating life-fulfilled happiness.

"Guess this also means you'll want to come riding my motorcycle with me afterschool more, huh?"

Sierra smiled wryly. "It won't be the motorcycle I'll want to be riding." She said naughtily causing Jack to tense up with arousal and smile.

Meanwhile just outside the classroom reeking of sex Miko Nakadai stood looking through the window with an appalled and heated face.

"So that's why he didn't wanna come back to base after school!" She said to herself heatedly. She was irritated Jack hadn't agreed to go with her and Bulkhead because she wanted more 'sex time' as she called it, but now things had taken a twisted turn in her case.

Sure, Jack had told her that we was going to make his move with Sierra, she just hadn't expected he'd move that fast. Miko crossed her arms in a huff and practically stomped away from the building. She didn't know why she was feeling jealous and angry since she initially just wanted a 'sex friend' type deal with Jack, but after witnessing the raunchy intercourse between 'loverboy' and 'cheer captain' Miko thought otherwise_. 'Stupid Jack, it's not like I like you or anything.'_ She thought trying to convince herself.

But she looked back at the window as she walked away looking forlorn. Maybe she was interested in more than that, suddenly a daring expression came across her features as she smiled determinedly.

'Okay, red, it's on!' she thought.

-~-~-~-~-

Ten minutes later, after they had both gotten cleaned up, Jack and Sierra stood at the main entrance of the school, Sierra walking off towards a cab she'd called, though she seemed to be limping a little, she turned back and smiled at Jack, blowing him a kiss and assuring him she was ok as she climbed in, and told him that she would see him soon.

As the cab drove away, Jack looked to his right and saw Arcee parked in one of the spaces, her front wheel turning towards him as he approached.

"Hey Partner." She greeted as he put his helmet on and swung his leg over her saddle, and her engine fired up.

"Hey Arcee. Busy day?" he asked with a smile.

"The usual, Bulkhead called ahead and told me you were staying behind to help clean up after class." She replied smoothly.

"Yeah, took a bit longer than we thought." Jack replied, trying hard to keep the smile out of his voice.

"That wouldn't have anything to do with why she was limping, would it?" Arcee asked, a slight note of concern in her voice as they turned out of the car park and headed in the direction of the K.O Burger joint, she knew he hated that place, but it was the only job he could get while still in school, so he had to make do.

'Oh scrap...did Arcee see us?!' his mind started to buzz with all kinds of awkward ways this conversation could go

Unfortunately, the radiation from the Pink Energon decided that now would be a good time to mess with him; images of what he and Miko had done, and the photos she's sent him, and what he and Sierra had done, and the possibilities of what could happen if he was with them both, started flitting through his mind. Idly he wondered what photos Sierra was going to send him, how many positions she'd twist her naked body into before her camera snapped a shot.

Unfortunately, this had an unwanted effect on Jack, main reason being, he was currently straddling his Partner's waist, or what became her waist in her normal form. Jack tried hard to think about something else, ANYTHING else to shut down his Energon-fueled libido, sadly, the Fates were against him now.

If she could have, Arcee would have raised a brow-plate at the sudden tenseness flowing through her Partner, her sensors ran a quick scan of his body, and showed an elevated heart rate, increase in body temperature, as well as dilation of his pupils, as well as something firm starting to press into her saddle.

'Oh.' She thought. 'So THAT is why Sierra was limping.' Arcee thought. She wasn't quite sure how she felt about that. True, she didn't know much about human relationships, the 'Bots hadn't really needed to study that part of human society before.

Over the past few months though, Arcee's view of her Partner had changed somewhat; they'd spent more time together, talking, laughing, listening to each other's stories. Overtime, her feelings had developed beyond friendship, and she'd seen the way he'd looked at her, the way his own eyes had lit up.

Honestly she was afraid to broach the subject with him, worried she'd scare him off, or make him feel uncomfortable. But now he'd apparently made his choice, and it hadn't been her, not that she really expected it to be.

'Still, no reason why I can't tease him a little...' she thought with an inward smirk, if nothing else, it'd take her mind off her confusion.

So she decided to warm up the saddle, and make it vibrate, not much, just enough for him to notice, and to her satisfaction, he did.

Jack sucked in a breath as he felt the saddle suddenly get warmer, and even started to vibrate a little. His mind raced. "Urm...Arcee, what are you doing?" he asked a little nervously.

"You seem a little tense Jack, I thought I'd help you relax, before I drop you off at work, I know how stressful that place can be for you." She said sweetly, voice completely hiding her inner feelings behind an amused tone.

'Wow, that actually feels real good.' He thought, then he did a quick recap of the week's events, or rather, who he'd been with that week, and who else might fall under the Energon's effects. 'First Miko, now Sierra...who's next? Arcee? Nah, if it was going to affect her, it would have by now, wouldn't it?' he pondered.

As if to answer him, a mental movie of Arcee laying on her berth back at the base flashed into his mind, in this new fantasy, Arcee was laying on her side, smiling seductively at him, holding her self up with one hand, and beckoning him to come closer with the index finger of her other hand.

Then as he watched, the mental movie played out, and Arcee slowly ran her left had down over her breastplate, before stroking over her stomach plating, before slowly spreading her legs, and letting her hand slide between the, as it did, she closed her optics, opened her mouth in a moan and rolled onto her back as she moaned his name.

Jack blinked as the image faded. 'What the frag was that?' he thought, unfortunately, that had only served to make his current state more prominent, in other words, he was quickly hardening again, despite still needing to rest after the exhausting session in the classroom.

"Err...Jack...Whatever, or rather, _who_ever you're thinking about, you might want to think about something else, I'm not sure your co-workers would appreciate you walking around...in your current state..." Arcee pointed out, though inwardly, she was smiling with amusement, and that amusement showed in her voice, though part of her didn't mind that Jack was 'poking' her in the stomach.

"Err...Right." Jack stuttered, he screwed his eyes shut as he tried to think about something ANYTHING to kill his arousal.

'Geometry homework...'Cons, Airachind, Megatron, Megatron making out with Airachnid...Airachind making out with Starscream...' and just like that, the erection that had almost been at full mast, mercifully died.

"There you go." Arcee said with a genuine smile in her voice, though, inwardly, she was a bit disappointed, she'd kinda liked teasing him.

As they pulled into the K.O car park, Jack reluctantly dismounted his Guardian, letting his fingers gently trace over her paneling as he did, before he took off his helmet. Had he kept his hand on her a bit longer, he might have noticed the slight shudder that passed over his companion.

'Ok, that felt...odd.' Arcee thought, Jack had touched her many times before, but that time, it had felt different, though she wasn't quite sure how. She'd sense a slight tingling sensation that spread out from his fingertips, and her frame had leaned towards him ever so slightly, but he'd already turned away to head inside. The touch had felt...nice...

"Probably nothing." She muttered to herself. "I'll be back to pick you up after your shift Jack." She called out, activating her Sadie avatar. Jack looked back at her and smiled.

"Sure thing Partner. Don't get too lonely without me, 'k?" he grinned cockily. If she could have, Arcee would have rolled her optics.

"Get in there before you get fired, Smooth Operator." Her voice conveying the sigh she suppressed. As Jack waved, she noticed his eyes were filled with the usual range of emotions, but this time, she also saw affection, well, she usually saw that too, but this time, there seemed to be a bit more than usual.

Once he was through the door, and out of sight, she fired up her engine and rolled out of the parking lot, wondering if the surge of affection she'd seen in his eyes was for her, or Sierra.

~-~-~-~-~

End of chapter two

Well, there's chapter 2. I hope you enjoyed, and please leave feedback, that's what keeps me going, (and if any of you have ideas for later chapters, please let me know. :D)

Next chapter will bring June into the equation, and will contain incest, if you're ok with that, then that's fine. I should have it posted by the middle of the week, or by next weekend.

The chapter after that will bring in Arcee, Jack's partner and "true" love interest, at least as far as the show is concerned, even if the writers aren't willing to address that yet.