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Katie Kaboom: My Girlfriend Is A Monster

By Gideon Kalve Jarvis

Commissioned by JadeStyx

Author’s Note: Some characters © copyright Warner Bros., and are used without permission. The author makes no profit from this work. Further information about Katie Ka-Boom can be found at http://animaniacs.wikia.com/wiki/Katie\_Ka-Boom

“So, um,” Katie Ka-Boom said, giggling nervously as she looked around the modest bedroom. “here we are. My bedroom. Alone.”

Lupus Ladykiller smirked as he looked the smoking hot blonde teen up and down, taking her in. The human hottie had a petite build, toned from lots of aerobics and jogging, and she showed it off with that casual look she was sporting, with a loose powder blue sweater that always seemed about to slide right down her slim young body, and tight pink pants that clung to her equally tight little butt like a second skin. With Katie facing away from him, Lupus didn’t even bother trying to control his drooling as he let his muzzle hang open, licking his chops in lusty eagerness. A sharp claw gouged another notch, one of so many, into the worn black length of his belt, before huge paws loosened the buckle, then unfastened the top button.

Just starting to half-turn, Katie gasped as she felt the strong hands of the muscular wolf close around her waist, pulling her firmly against his chest. Her eyes opened, and she gasped again, louder this time, then started to moan as his muzzle found the crook of her neck, wrapping around her delicate skin, suckling on it, while he growled deep in his chest, letting the vibrations of that primal sound shudder through her. Almost before she was even aware of what the big wolf was doing, Lupus’ thumbs were hooked into the waist of her pants, his huge hands caressing against her smooth pink hips and bottom, clawtips leaving little lines on her delicate skin as he peeled pants and panties alike right down the floor, exposing her precious, untouched treasure to the light chill of her room.

Like so many bad decisions in a teenager’s life, Katie Ka-Boom took up with Lupus Ladykiller as an act of teenage rebellion. He’d cruised up to the old-fashioned drive-in where she was working as a carhop, revving the engine of his souped-up motorcycle, his armless denim jacket sporting the colors of Hell’s Howlers, a motorcycle gang of wild toon wolves that were well-known to be about as bad as bad could get, a danger to every wife’s virtue and daughter’s virginity. When Katie came out to serve him, though, he was as polite as could be, respectful and well-mannered, despite his muscled chest and belly being exposed by his open jacket, as well as so much thick, shaggy black fur and sharp white teeth, making it very clear this was an animal who reveled in being a beast, free of the restrictions of law and society.

Not long after she came back with his order, they struck up a conversation, and soon Katie found herself, rather than taking the bus, riding home on the back of a biker wolf’s ride, her hands exploring his well-muscled body as she held tightly to his powerful torso. Before they parted ways, she’d given him her number, and they’d already made plans to meet after Katie’s school let out the next day.

Of course, right from the start, Lupus knew what Katie Ka-Boom, the goody-two-shoes human hottie really wanted, even if she didn’t, at least consciously. After toons started leaving the segregation of Toontown after the ‘30’s, plenty of stereotypes had spread about the different sorts of toons out there, and when it came to wolves, everyone knew they were some of the baddest of the bad, right up there with weasels for wickedness. They openly made it known that they liked human girls, and, being toons, with genetics as flexible as the rest of their bodies, had caused more than their fair share of single mothers, broken hearts…and well-satisfied women, thoroughly ruined for any human man ever again.

Besides the stereotypes of his species, though, Lupus Ladykiller looked bad, bad to the bone. Even if Katie Ka-Boom didn’t know about some of the stuff Hell’s Howlers got up to, just looking at him made it obvious that he was the Wrong Sort of guy, the kind every parent warned their daughters about. Warned them, but for some reason seldom ever got around to really explaining why.

Turning the half-naked human girl to face him, his muzzle meeting her lips, kissing her hungrily, his tongue invading her mouth like some wild beast at a fresh kill, Lupus reflected on how easy it was to reel in these human teens from their lily-white suburban neighborhoods. Katie was the one who’d set everything up, after all, waiting for her parents and kid brother to be out of town, leaving her to housesit, before she’d invited Lupus over. All the big black-furred wolf had to do was make himself available. He was there because Katie wanted to prove herself an adult in the most primal sort of way, to prove to everyone, parents and peers alike, that she wasn’t a child, and was deserving of their respect…as well as more than a little of their shock.

Breaking the kiss to peel Katie’s shirt up and over her head, tossing it casually onto her vanity table, baring the girl’s still-budding breasts with their delicious-looking and very erect raspberry pink nipples, Lupus leaned in again, one hand catching Katie’s waist, pulling her close as he began to nibble on her chin, and then down her neck, his long, smooth tongue lashing sweetly across her collarbone, dipping occasionally into the cleft right between those plump mounds. The girl’s voice was loud as she moaned at his touch, her back arching as his hands engulfed her breasts, squeezing them, circling them, lifting them. Then her hands were on his shoulders, and she was crying out, calling his name, her inner thighs drenched and dripping as his sharp teeth bit down, ever-so-lightly, on one plump pink nipple.

Exulting in how easy it was to give this girl exactly what she wanted, his wicked wolf’s mind plotting out every part of his evil scheme, just like he’d done many times before, Lupus suckled greedily on Katie’s breasts, circling one with his wide muzzle, fitting almost the entire plump mound in his mouth and sucking, before pulling back until just one achingly erect little nipple was between his lips, all his efforts centered on tugging on that one tasty teat, twisting it just so, until he heard Katie cry out again, the signal for him to switch to the other breast. Her hands tensed on his shoulders, slender, elegant fingers digging into his fur, and when his huge, rough paws seized her taut little tushie, squeezing and kneading and rolling her supple flesh, right when he began to suck on her other nipple like a hungry cub, she didn’t just cry out: she screamed!

Letting Katie sink breathlessly to her knees, Lupus allowed himself to tower over the cute blonde as she fought to catch her breath. He took a step closer, letting her feel his presence there, and didn’t even try to restrain the wide, toothy smile that came to his lips when Katie looked up, her blue eyes growing huge when she realized that she was just eye level with the big wolf’s groin. One hand came down gently but firmly on Katie’s blonde head, and she started again, blinking as she looked up at him, questioningly at first, before understanding and adorable trepidation dawned on her face at almost the same time. Yeah, she’d seen some of the girly mags Lupus’ friends had left “carelessly” strewn around their camp when he’d taken Katie out to spend some time in the wilderness, and drive her crazy surrounded by wild, half-naked males, all of whom kept making sure to never treat her with anything but politeness and respect. In desperation, by the time they were almost ready to head back to civilization, Katie was reading those mags avidly, looking for all the ways she could to show Lupus she deserved what she knew he could give her.

Yeah, she knew what to do. Lupus knew it, and so did Katie. That paw got more insistent, stroking her hair, coaxing her forward without quite being rough about it. Biting her lower lip, then visibly screwing up her courage, Katie reached forward…and unzipped the front of the wolf’s jeans. When what was inside popped free, already erect, dripping, and ready for action, her mouth dropped open wide, her face the very picture of overawed astonishment.

Of course, Lupus didn’t give the human girl a chance to recover: before she’d even closed her mouth, he took the opportunity to fill it with something thick and meaty. Looking smugly down at the cute little teen, guiding her forward and back as she did her very best to polish his girthy knob, so thick it was stretching her mouth right to her limits, the big wolf let his jeans drop to the floor, then kicked them aside, leaving him wearing only his Hell’s Howlers black denim jacket.

Eager to please, Katie reached forward, grabbing Lupus’ butt, squeezing the firm muscles of his rump tightly, using the leverage to pull herself forward even more. Looking up at the wolf’s face, right when he grit his teeth, his clawed hands flexing to either side of her head, his washboard belly rippling, Katie took that as encouragement, and eagerly forced herself down that juicy, heavily-leaking length of wolfmeat until her eyes were filling with tears. She was choking herself on that big dong, her chin squeezed right up against his swollen, fuzzy sac.

Watching Katie at work was even hotter than the blowjob, Lupus decided, looking down at her heart-shaped tushie resting on her dainty feet, while her hands curled in the short fur on the front of his hips and belly, her head bobbing frantically as she fought to hold on for just a few moments more. All that enthusiasm was more than making up for her total lack of practical experience. Well, mostly. The “mostly” part came into play when she finally pulled back, coughing and gasping for air.

That had been close! Lupus had really been pretty close to popping his cork right in the girl’s mouth! The moment Katie pulled her mouth off his prick with a loud ‘pop,’ the big wolf was scooping her up in his arms, then laying her spread out on her bed. Looking up at Lupus shyly, the sweet teenie whimpered as he stroked his big paw through her sparse blonde bush, then whined as he just engulfed her little cunny, confirming with a finger what he’d already guessed: Katie Ka-Boom was prime cherry, just begging to be popped. Her hands went to his wrist, gripping it tightly, as Lupus started to work his fingers harder, faster, soon filling the room with the slick, sweetly-obscene squelching of a tiny teen cunny being gotten ready for its first full, proper breeding.

That’s right: breeding. Though he hadn’t let on, Lupus had been manipulating Katie the whole time, his sense of smell letting him know exactly when she was going to be at her most ripe, her most fertile, and he’d timed every little event of her sweet seduction to what his sense of smell told him was right. Of course, he’d lucked out about her family leaving town, which meant he got to pump her full of puppies right on her bed, but he’d been ready to nail her in a cheap motel if that was what it took.

“Lupus!” Katie was crying out as he leaned in close, his hands moving to her thighs, spreading them wide, his hot breath steaming up her heavily-leaking quim. “Please, Lupus, be gentle – I’m a…”

“Yeah,” Lupus growled, soft and seductive, looking up into her eyes before slowly, deliberately licking his chops, like a wild animal about to chow down. “I know it babe. Don’t worry: you’ll love this.”

Maybe Katie had been about to say something. Maybe not. Her mouth was open, anyway, right when Lupus started to just devour her flushed pink pussy. His eyes were watching her face, those yellow orbs smoldering with bestial lust, as her back snapped taut, arching upward, her hips lifting, almost as though she were trying to pull her cunny away from the wolf’s greedy maw. No chance of that! Lupus grabbed Katie’s hips tight, and dragged her back down, like it or not, as he turned his head this way and that, making sure to lick, suck, and gnaw on every last bit of tasty teen twat. She was delicious! And those sounds she was making…oh yeah, that was the sweetest music to Lupus’ ears, hearing her howl like a wolf herself as her smooth skin glistened with the sweat of orgasm after overpowering orgasm.

“Gonna howl like a wolf,” growled Lupus, finally – finally! – pulling his muzzle away, wiping some of the juices coating his fur off on his arm, “gonna get nailed like a wolf. Get on your belly, babe: it’s time to make you into a cherry turnover.”

“Wh-wha?” Katie somehow got out, dazed by afterglow, her face flushed with more orgasms than a virgin teenage girl was really meant to endure all at once. All the same, as the big wolf easily flipped her slim, willowy body onto all-fours, a thought somehow managed to trickle its way into what remained of her conscious thoughts. “Wait,” she gasped out, looking back with trepidation as she felt him hiking her bum up, his big paws squeezing her flawless buns, his black fur a sharp contrast to her alabaster skin, rolling them, then spreading them apart, letting him get a good look at all of her. “Wait: I forgot to buy condoms today. Everything just happened so fast…”

“Don’t worry, babe,” Lupus soothed, one hand still holding her tush steady, while the other slowly shafted his hard-on, guiding it forward, then slotting it into place, parting the girl’s puffy pink folds. “I’ll just pull out.”

As if! Lupus chortled to himself, moving both his paws back to Katie’s butt, gripping her firmly, holding her properly in place. Hope you like puppies, sweet cheeks! You’re gonna have a litter of ‘em when I’m through with you!

“But I…OH!”

Lupus could almost hear the soft sound of Katie’s cherry popping. He definitely heard her little squeak of surprise. Yep, just like he’d thought, after testing and stretching her hymen with his fingers and tongue, then gauging how much she squirmed: that little membrane was nice and thin already, probably from all the working out she did, and his work on her just stretched it that much more. So when his penis slid into her, nice and smooth, there was a tiny trickle of blood, hardly anything, really, glistening on his shaft when he pulled back after a short half-thrust forward, and rather than serious pain, she’d had a little shock, but that was about it.

His hands going to the sides of Katie’s heart-shaped tushie, Lupus drove his hips forward, gritting his teeth as he watched her labia streeetch, right up until they were turning bloodless white, she was stuffed with so much thick, meaty wolfcock. No virgin human teen, especially not one as slender and snug as Katie Ka-Boom, was meant to take a full-grown wolftoon’s penis, and certainly not to the hilt. That didn’t stop Lupus, though, and the muscles of his entire body tensed, veins standing out, as he forced it all into the smoking hot girl in his clutches, until his hips bumped against her sexy little butt. She’d been making all sorts of adorable and intensely arousing noises up until that point, but when Lupus started to grind his hips against Katie’s upturned tushie, that ramped them up to eleven, as the poor, overstimulated girl grabbed her sheets tight in her balled-up fists, her breasts heaving as she cried out loudly as orgasms flooded her system, blotting out all conscious thought, her tense anal rosebud clenching visibly in a rapidfire winking as she started to cum hard…and just couldn’t seem to stop!

Baring his fangs, Lupus snarled like a wild animal, and started to pound the ripe little female in his powerful grip, riding her with a will! Her pert little buns bounced, and soon started to turn a bright red with the force and rapidity of the powerful hips slapping against her delicate skin, while her breasts bobbed forward and back, machinegun fast. She wasn’t screaming anymore; she could hardly even breathe! Slumping forward onto the bed, Katie’s eyes rolled back in her head as the wolf humping her started thrusting almost straight down into her sweat-bathed body, shafting her right to the hilt, his cock like a piston, his sperm-heavy balls slapping her clitty again and again and again, until nothing mattered anymore, until there was nothing in her entire universe except…except…

“Grah!” Lupus suddenly snarled to the ceiling, snapping his jaws on air as his tail suddenly hiked high, exposing his well-muscled rump…and the flood of semen running down the back of Katie’s legs in rivers as he emptied both barrels into her womb. The first splash of semen sent Katie right over the edge – and she’d thought she’d already found out what ultimate sexual bliss was like! – as a host of inner contractions suddenly rocked her world, setting off shudders all over her body that looked, to an outside observer, like tiny movements, little tremors of sleek, youthful muscle just beneath the skin, but for Katie felt like she was the personal epicenter of a category ten!

“Mmm,” sighed Lupus in intense satisfaction, slowly pulling his glistening shaft free with a soft ‘slurp’ of copious juices. “Oh yea, that was good, babe!” He looked down, grinning wickedly as he eyed Katie’s anus…then used one hand to spread her buns a bit wider, while his other hand went once more to his shaft, holding it in place as he worked his hips forward. “Now let’s make sure all that sperm takes,” he added with a chuckle as his cocktip found its tiny pink bullseye. “Gotta ramrod the load, after all.”

The meaning of Lupus’ words were beyond Katie for several minutes. In fact, if he didn’t pop her anal cherry, sending a sudden shock through her system (though, again, not one of pain – he was way too slick for that, and she was way too blissed out from the warm feeling of having a bellyful of hot wolfcum), she might not have realized what he was saying until he’d gotten miles away on his bike.

“You…you came in me, Lu,” she got out, dazed at first, shuddering as another orgasm, a smaller one this time, rocked her body as his fat balls slapped against her devastated little cunny, and then again, as he began humping her booty, though at a slower, more relaxed pace than he’d taken her sex. “You could have…” Her eyes widened. “You could have gotten me pregnant!”

“Maybe so, babe,” Lupus laughed through clenched teeth, his hips working faster now, turned on by the feeling of power he got from truly dominating this hot human bitch, sodomizing her just the final sweet icing on the cake. “But there’s nothing you can do about it now. Besides, when you show up to school sporting a baby bump, you’ll get what you wanted anyway: everybody to know that you’re not a child anymore. What you are instead…is my bitch!”

Katie squealed, and then squirmed as Lupus buried his cock in her, all the way to the hilt, flooding her rectum with his second big load of the night. He lay on top of her, panting, a happy grin on his face as he let himself just bask in the knowledge that he’d knocked up another sweet piece of tail.

But Lupus was so caught up in his self-satisfied feelings, he didn’t notice Katie Ka-Boom’s eyes start to glow. Not, that is, until it was far too late.

“I’m not a bitch!” Katie growled – really growled, like him, but deeper, more scary-sounding – as her body started to swell beneath Lupus’ belly, her muscles growing, her body enlarging as she half-turned, one large, green-skinned hand taking a firm hold of the base of his cock. “I’m a teenager!”

*

“Sad case,” said the EMT as he wheeled the babbling black wolftoon strapped to the stretched toward the ambulance destined for the local mental hospital.

“Tell me about it,” answered the desk worker at the local fire department where the wolf – one Lupus Ladykiller, a notable member of the Hell’s Howlers biker gang – had shown up, naked and wild-eyed, his fur missing in patches where it looked like it had been burned off, and in others where it was obviously torn out. “Guy won’t stop talking about the monster he knocked up.”

“Ah well,” the EMT returned with a shrug, then slid the delirious wolf up into the rear bay of the ambulance. “At least it couldn’t have happened to a nicer guy.”

“Tell me about it,” the desk worker repeated with a light smirk. “See you around.”

“You too,” returned the EMT, slamming the doors shut, before the driver of the ambulance started the motor, and drove off into the night.

Her boyfriends all know

That anytime soon

Their little lady Katie goes

Ka-Boom!