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And here I thought the most shocking day of my life would be the day I got drunk and fucked Ben Hendricks' dog. I stood there at the stable, mouth on the floor, reeling from two rather startling revelations. I'd just watched Ben _magically_change shape into a horse - a female one at that! Perhaps more gut-wrenching was the realization that his dog, Tinkerbell, was my missing brother, Derek. Did I forget to mention that I had recently fucked 'her'?

I stared down at the German Shepherd bitch, heat rushing to my face. "Derek...I I didn't know." She - he? - just looked up at me with wide eyes and nodded. In the background, I heard a loud _thrump!_that could only be that draft horse climbing onto Ben's back, but I was a bit preoccupied with my brother. "What do I do?" I asked, taking the time to reach down and undo the muzzle Ben had put on my older brother.

Derek cocked her head at me, obviously unable to answer. Then, her ears perked up and she darted into the horse pen to grab the half-full bottle. She picked it up gingerly, careful not to spill or drink any as she brought it to me. I grabbed the cork and popped it in, once again reading the label on the side: "Love Potion #10 - Madame Ruth's Magic Shop, 1135 Broadway Street. Do you think they're open on Saturdays?"

Derek just shrugged, and odd expression on a dog. "Right, well, worth a shot." I reached down and untied her leash from the fence and said, "Heel," before I could stop myself.

When Derek whined, I said, sheepishly, "Sorry, force of habit. And there are leash laws, you know." I started to head for Broadway Street, trying to remember which train tracks led there the quickest. Derek set in beside me after one more look back. I glanced too, wincing as I watched the huge stallion ravage the little filly for the umpteenth time. We must have gone three blocks before I couldn't hear her squealing anymore.

Sure enough, the magic shop was open, and I didn't seen a sign that said "No Dogs" so I just walked right in with Derek at my side. The store was filled with dusty trinkets, and I wondered why I'd never noticed it before. Evidently they had real magic! You wouldn't have known from the scratched, plastic counter and old, ragged cash register. I didn't even see any signs about accepting credit cards.

Behind the counter was a woman with pointy-glasses like something out of a bad 80's movie. Her hair was up in a bun, and she was hiding her chubbiness under a long, formless dress with flowers all over it. She had been reading a musty book, but looked up when the doorbell went off. I scratched my head and said, "Madam Ruth? We've got a...problem."

She took one look at the German Shepherd at my side and said, "Not again."

Confused, I followed her downstairs into a seedy looking basement where she knocked on an old, rotting door. Inside was a much older woman, in her sixties at least. I wondered why she would choose to look so old and wrinkled if she really could make magic potions! "Yes?" she asked, but when she saw me and Derek she took a deep breath.

"What happened." The words sounded like a question, but she said it like a statement. "Don't spare any details."

I fumbled for words, finally just settling for showing her the bottle. Madam Ruth (if that's who the old woman was) widened her eyes. "This is an experimental potion. Not for sale!" she peered down accusingly at me.

"I - I didn't take it! _Ben_somehow got his hands on it!"

She looked sharply at the dog. "Bad dog," she said gruffly.

"No, this isn't Ben, this is my brother, Derek! Ben's our neighbor." This wasn't going exactly as I expected.

"Then why isn't Ben with you?"

I looked down, stammering again. "He, uh..., he's a bit preoccupied right now. You can save him, can't you?"

"Save him?" she asked, arching an eyebrow. "He's not even here!"

"Not Ben.Derek!"

Madam Ruth gave out a loud _harrumph_and stared at the younger woman. "Priscilla, how did this bottle leave the workshop? I swear I put a gigantic note on it, addressed to you."

"I didn't see anything," Priscilla replied defensively. "This Ben must have stolen it."

"While you were in the bathroom? Or just reading? Lord above!" the old woman said, throwing her hands up. She turned back to me and said, slowly, "This potion doesn't wear off."

My heart sank, and I couldn't bring myself to look at Derek, who just whimpered. "Oh, I -"

"You didn't let me finish!" she interrupted. "I have an antidote, and that'll change your brother right quick."

"Great!" I gasped, heart starting to beat again in my chest.

"Quiet, boy! There's a complication," she said, taking a deep breath and removing her glasses to look me level in the eye. "It won't work if she's 'with child'. I mean, puppies. Think carefully - is there _any_chance your brother may have mated? If she was ever alone, even for a few minutes..."

My face told the old woman everything she needed to know, while managing to leave out the details I was more than happy to conceal. I went beet red, knowing that that very first day I'd watched Beefstick breed my older brother first hand. I didn't bother to mention that I'd been..._personally_involved in another mating of my brother, but that wasn't likely to result in puppies.

"Ah. I suspected so," she said sadly. "Then there's nothing I can do."

"What!?" I gasped, my stomach churning.

"For now!" she yelled. "Patience, boy - learn some! I'll get you a vial, but you needn't bother giving it to her until after the puppies are born. Be careful where you do it - she'll change right back."

And so I found myself sneaking back into Ben's yard, with two little bottles in my pockets - the one that started this whole mess, and the one that would end it, eventually. Derek was quiet on the way home, but what could she say? Literally nothing.

I paused at the gate, my mind racing. What can I tell my parents? I know how worried they are, but they'd never believe me! Maybe I could forge a letter..."Derek, I'm sorry," I said, scatterbrained. "If I'd known it was you I would have kicked Ben's ass right away. I would never have gone to his house and -" gotten drunk and fucked you. I couldn't say it. I slumped next to the tall, wooden fence with my head in my hands.

"Derek, what are we going to do?"

I was the younger brother. _He_was supposed to be the responsible one, _he_was the one who did the hard work when no one else would. Now _she_was the one who needed help and I didn't feel ready at all. I looked at the German Shepherd, in her leash and collar. I wasn't going to get any advice from Derek unless I asked it in the right way.

"You're stuck like this until you, um, give birth in a month-and-a-half. Ben's disappeared, right? I'll tell the Hendricks that I'll take care of you until he comes back."

Derek shook her head. "Why not?" I asked, before groaning. I said, "Are you worried they'll think I was involved?"

She nodded.

"I don't care - the cops won't find any proof. No one will think to ask the new filly where she came from. I'm not going to make you stay with them," I said, pointing at the Hendrick house, "when you should be at home with us."

Derek shook her head, patting the back of one paw with the other. I was confused until she went schlip, schlop (like a clock) with her tongue. "Now's not the time? Fine, I guess you're right. But I don't care what you say, once they realize Ben's missing, I'm going to offer to take care of you. Deal?"

Derek nodded, wagging her tail. I blushed, then realized that Derek could see my face and blushed harder. Dogs can't see red, right? Hastily I said, "Well, what about after the puppies? Won't they find it fishy when Tinkerbell disappears and you come home?"

I hadn't asked a yes or no question, but her answer was clear. She just cocked her head and shrugged. "We'll cross that bridge when we come to it, yeah. Are you ready to go in?" I asked, not ready at all, myself. I wasn't going to be getting much sleep tonight, thinking about my brother being trapped in the house next door, going on walks to pee and eating kibble and cold dog food.Ben deserves what he got, I thought.

Slowly, I said as much. Madam Ruth had made me promise to free Ben as well, but I told Derek, "There's enough antidote for Ben, but I'm not going to give it to her. Not after what she did to you."

Derek looked down, her tail still. I could tell she was conflicted. Just like my brother to turn the other cheek, even now. "There's still plenty of time to decide. If those huge balls were any indication, she's pretty well knocked up. So that gives us - what - ten months? You do realize he meant for _me_to be the filly, and I doubt Ben was going to fix either of us."

Derek nodded, but she didn't look up. I groaned. "We'll talk about it later," I said, getting up. I peeked over the fence, but no one was inside. I just had to drop 'Tinkerbell' off and pretend I never saw Ben today. There was definitely going to be a hubbub when a _second_boy simply vanished from the same neighborhood! We walked through the gate, and I undid the leash. Walking to the gate to my backyard, I said, "Well...I'll see you around?" weakly.

Pancakes and Beefstick were out, and when they saw me they began to bark their heads off. It was only about 11:00 in the morning, and I could see that both households were basically empty. The cars were missing in the driveways. That's right, Mom had an appointment at the salon, and Dad was meeting a colleague for golf. I had no idea where the Hendricks were, but if anyone was home, it was probably just Sarah sleeping in. But why were the dogs out?

I must not have latched the door when I rushed outside to meet Ben. Sure enough, the back door was open just a touch. Well, at least they hadn't gotten into the trash! I put my hand on the gate, getting ready to leave my brother to her yard when she suddenly rushed over and grabbed my pant leg in her teeth. "Huh?" I asked.

She wedged her way in front of me, scratching at the gate to our backyard, whining. "I thought you wanted to stay with the Hendricks?"

She nodded, but then shook her head. Now I was really confused. While she pawed at the gate, I said, "I don't get it. Besides, the dogs are out and -"

Yip! she said, wagging her tail.

Oh. Ohhhh. "You want to go in with them?" I asked, and this time she gave me a vigorous nod. My face went red, and despite the chill, I started sweating. Could she really be suggesting what I thought she was suggesting? "But you're still in heat - they'll..."

Derek just barked and whined, scratching at the gate.

I didn't know what to do or say. My brother wanted_to get fucked by the dogs! I mean, sure, I _wanted_to spend some quality time with Alexis Green, too, but I didn't tell that to _Derek.Has she no shame? I had to convince her otherwise, and I knew just the thing. I said, "You know I'll have to supervise to make sure they don't hurt you."

Derek scratched at the gate again. I dropped my jaw. How good was the sex, how much did her heat have to affect her for her to just shrug at the thought that her twelve-year-old brother was going to watch her getting fucked? My plan had royally backfired, and I couldn't say no, now. If this was really what Derek wanted...

I could feel my cock getting hard, so I fumbled at the gate, opening it. Derek darted inside, and I followed, closing the door behind me. I realized then that Pancakes and Beefstick hadn't been barking at me. They didn't give me a second glance. They could smell 'Tinkerbell'. Jumping and darting around, the studs circled around my brother, tails wagging furiously.

"Hey now!" I shouted. "Gentle, gentle..."

We weren't supposed to have both dogs out with a bitch in heat at the same time, but Derek didn't seem to mind, so I just watched from a safe distance, ready to step in if things got aggressive. Things calmed down greatly when the males found what they were looking for. Together, they shoved their noses into Derek's rump, and she whimpered, spreading her legs and lifting her tail.

As they sniffed and licked, I began to realize that this was really happening. Unless I stepped in, I was about to watch my own brother getting fucked in her pussy by the family dogs. Sure, I'd seen Beefstick have a go with her before, but I didn't know it was Derek. Now, with her slender rump bouncing up and down against their tongues, it was clear how much she wanted this. My pants were tented now, and I couldn't help but think back to when 'Slutpuppy' was laying on her back for me - when I'd lost my virginity in my own, whimpering brother.

Man, do I need some counseling.

Pancakes was the first again, shoving the larger, darker shepherd away to jump onto Derek's back. This time, however, Beefstick wasn't willing to wait his turn. Snarling, the large dog leapt at Pancakes and snapped at him, though he let his jaws snap closed an inch shy. "Hey, hey!" I said, stepping in. "Bad dog!" Beefstick looked up at me and whimpered, and I corralled him away from the other two. "Let them do their thing," I commanded, turning back.

Derek was looking over her shoulder at Pancakes, who scootched forward onto her back, his cock-tip already poking out of his chubby sheath. He wasn't much for foreplay! She just whined, her tongue lolling out the side of her mouth. From the side as I was, I could watch as that glistening tip shoved closer and closer until it was brushing up against my brother's quivering mound.

I'd watched dozens of matings before, but never like this. This time, Pancakes was slowly wedging my brother apart. I watched the stud hump and grunt, finding his mark with a practiced motion, sinking inside of Derek as she whimpered. I'd never cared too much about it before, but now I couldn't tear my eyes away. Derek wasn't looking by way, so groaning, I slid my hand to my crotch, rubbing the bulge that was growing there.

Yip! Derek spread her legs and bucked her hips, tail wagging awkwardly against Pancakes' hips. He hammered just as hard, driving more and more of his curved, bulging cock into her tight pussy. I knew first hand how big the dogs were - two, three times as big as me, especially if you counted the knots. I could just picture his huge length ploughing deep into my brother, making her hump and whine.

Beefstick watched patiently now, his tongue dangling and his cock sticking lewdly out. How my own cock wanted to be let out, but what if Derek looked my way? Instead, I just rubbed it through my baggy jeans, picturing myself_on my brother's back. _It's not gay if he's a she, is it?

Pancaked was hammering flush with her hips now, swelling inside of her. Soon her pussy would be stretched and distended, clenching the full, throbbing cock inside her. A sharp slap! slap! slap! rand out as his heavy balls swung against her again and again, a promise of what was to come. We both knew she was already full of Pancakes' puppy batter, but the dog didn't know. As far as he was concerned, he wa about to let loose a fresh litter inside his quivering bitch.

I knew I should just wait and watch, but I couldn't. I lied to myself and said I had to do what I'd seen my father do a dozen times before - I had to make sure that Pancakes was properly knotting. Our clients wanted to know how many ties were completed, and sometimes Dad needed to help with a particularly squeamish bitch. Heart racing, I moved up beside the breeding dogs, placing one hand on my brother's rump, and one on Pancakes' thigh to push the fur back and look.

Derek didn't seem to mind.

Now I could see everything up close, the way his thick, black balls smacked Derek's underbelly, the rapid, eager thrusts that drove more and more of his cock inside. Sure enough, he hadn't tied yet, his knot still swelling just outside my brother's cunt. "C'mon boy! Harder!" I encouraged, as I'd heard my father say. "Get that thing inside her!"

He pounded harder, the growing bulge _smacking_up against her like a lusty kiss. Her heat-swollen spade stretched and yawned around him, wedged further and further open until I got a perfect view of the _pop!_Pancakes' sunk himself into his bitch, making my brother's pussy bulge like a baseball.

And he was still growing, sealing himself inside. I watched her mount inflate like a balloon until her vulva was quivering about the size of a softball. She wasn't going _anywhere_until he was done with her now. "Good boy!" I said.

It all happened so fast. Pancakes lunged forward so hard my hands lost their grip and I fell backwards onto my ass. Even I could hear the loud _splurt!_as his balls began to pulse dumping a warm, sticky load deep in Derek's pussy. She arched her head back and _howled,_humping and bucking so hard I worried she might hurt the poor boy! With her eyes rolled back in her head and her tongue dangling and drooling on the ground beneath her, I knew why her sex drive had overtaken her humiliation. She whined in ecstasy, clenching and milking every last drop from our dog's twitching cock.

All I could do was watch and rub my crotch, knowing that Derek wasn't going to see anything but stars for the next few minutes.

Pancakes was done with her rump. He had what he needed, so he spun around, panting and _squirting_through the tie. Their tails wagged together, Derek still whining and humping. I looked beneath their tails at the huge bulge that looked painful, if not impossible. What had once been a pointed, y-shaped mound was now a swollen grapefruit, her delicate entrance stretched out and quivering around the thing base of Pancakes' cock. Despite the knot, I watched as white fluids dribbled out and landing on the grass below.

Derek was shuddering around him, bucking her hips and tugging back. Pancakes whined at the extra pressure where their genitals strained against each other, so I had to interject firmly: "Derek, stop. Be gentle - you _know_you have to wait."

For one, desperate moment, I knew that I would be next. Beefstick would have to wait his turn as I covered my brother, lowering my pants and sliding my cock to her sopping, quivering cunt. Derek wouldn't say no - he couldn't!

I might have done it, too, if not for the ten minutes of waiting. By the time Pancakes pulled free, the violent urges inside of me had calmed down. I lifted each dogs' tail, inspecting them for damage, but found none, just a cum-drizzled pussy and throbbing, dangling cock. "Good boy!" I praised again. Pancakes had been pretty clumsy starting out, missing a lot and being too rough, but he'd become a real gentleman.

Derek glanced back at me and whimpered. I blushed, letting go of her tail. Not meeting her gaze, I asked, "Is that good enough, or do you want Beefstick?"

She answered me by walking bow-legged over to the dark-furred dog, leaving a wet trail behind her. I took a deep breath, trying to remain calm as I watched our second dog get up and start lapping at my brother's well-used pussy. She held her tail rigidly aside and waited, trembling, for the inevitable.

While I watched and Pancakes patiently lapped at his messy cock, Beefstick clambered on top of Derek. Wasting no time, the large, eager shepherd launched himself hilt-deep in one practiced thrust, spreading her wide with a wet _splorch!_Barely a minute had passed since she'd tugged free from Pancakes, and without missing a beat, my brother was rocking and moaning beneath Beefstick!

This time I had a nice, private back door view. I watched beneath Beef's raised tail, his enormous balls swinging back and forth which each powerful thrust. I couldn't make out much more than Derek's achingly spread hind legs, but that was enough. She couldn't see me, and no one else was around, so I slipped my hand beneath my pants and grabbed my cock. I was surprised to find my underpants so wet, but I didn't let that stop me. Sitting on my ass, and I cupped my cock and humped my hips, masturbating to my brother getting fucked by my dog.

Hump! hump! hump! went Beefstick's hips, ploughing his eager bitch. His cock was much wider, spreading her until her lips were aching, but I knew Derek didn't mind. She let out squeal after high-pitched squeal, tail wagging. I saw her dig her nails into the dirt and push back, grinding her tight pussy against his growing knot.

I couldn't help it - I came. It was all too much for me. I shot into my underpants, quivering and gasping, trying to stay quiet. When I opened my eyes, I saw Derek looking back over her shoulder. My heart stopped, and I slid my hand out from my jeans, but I don't think she saw me. She was curled up, trying to watch the huge cock that was reaming her apart. I only beat them to the punch by a minute, soon, the two dogs were slamming against each other, cum rushing into her pregnant belly.

She was completely out of breath, collapsing on the ground so that her rump dangled in the air. Beefstick didn't mind, rump-to-rump and panting as he continued to seed his bitch. We'd never be able to tell which of the puppies were his and which were Pancakes', but we couldn't really get papers for them anyway. 'Tinkerbell's' sire and dam were most certainly _not_purebred German Shepherds! I checked the knot, and everything was fine. This time, when her mate pulled out, Derek was done. Panting and waddling, she scratched at the gate, and I let her out - to her home for the next month or two.

Scratching my head, I said, "Uh...if you need anything, you know...just let me know, okay?"

Derek just barked.

* * * * *

Life with Sarah wasn't so bad. I didn't get to see Zack except in glimpses when I was walked, but that didn't matter to me. I was just happy to spend my time with her. Honestly, I couldn't believe that Sarah and Ben were even siblings. It's like all the evil genes went to Ben, and all the good, to Sarah.

A lot happened in the next few days, and Sarah needed a_lot_ of cuddles from her favorite Tinkerbell. No one found a trace of Ben, the second disappearance of a fourteen-year-old boy in a week! The police questioned everyone, but there was no evidence of any wrongdoing - they just figured he'd run away from home.

They had no idea he was getting plowed a dozen times daily just a few minutes away.

My pregnancy was advancing quickly, and soon enough, my eight teats started to get heavy with milk and I could only move slowly around the house. I knew that my long nightmare would soon be over, but I still couldn't help but hope my puppies came out happy and healthy. I could feel them kicking around inside my belly.

When the day finally came, Sarah laid out a beautiful, plush whelping box. I could feel them coming, but it still took hours. I curled up in the box, whimpering as I waited and waited. Because Zack had been asking after me for weeks, they called him over when the time came, so Sarah, Zack, and Sarah's parents were all clustered around me when the first pup came.

Groaning, I found it surprisingly easy to clench my legs together and push. Slowly, slowly, the blind, wet, defenseless little puppy emerged from my straining vulva, almost three months since I'd first turned into 'Tinkerbell' and been mounted by Pancakes and Beefstick. I couldn't know which was the father of which puppy, but I did know_one_ thing.

This adorable little puppy dog was part of me. As a fourteen-year-old boy, I'd never really thought about that sensation, but now I was tingling with it. I was giving birth to _new_life, a little creature comprised of both me and its father. Half of my essence had flowed into this extension of me, and there were more coming. Carefully, I chewed through the umbilical cord, almost sad to lose that most intimate connection with my baby.

While I was still licking the first one clean to cheers from my audience, the second started to come. Biting my lip, I grunted and pushed. The first pup's brother came, yipping softly in short barks that sounded like a sea lion, moving its little paws aimlessly as it was born into the world. The two boys curled up next to each other as I nipped the cord and continued to clean them up.

I could tell that I was making Zack nervous. The twelve-year-old was the only one who knew I was really human, so every time I licked the blood off of one of my puppies, he grimaced.

I was done cleaning both, and my audience was talking about the state fair when, twenty minutes after the second pup, I felt the urge again. Squeezing and panting, my first beautiful little girl pushed into the world. While I lifted my head to clean her, the other two pups finally realized that I existed, and crawled pitifully over to my stomach.

Lifting a paw, I offered them my belly and they quickly each found a swollen, turgid teat. I couldn't help but _yip!_as their sharp teeth dug into my nipples, but I enjoyed the release of pressure that had been building up for weeks. Warm milk dribbled down their throats, and I realized just how much these little guys needed me. From the get go, I'd given them half of everything inside me, and then I'd fostered them as they grew, these simple little cords feeding them energy and nutrients. Now, all three drank deep from the fatty milk I provided them.

Oof.

The fourth pup was coming.

After that, and the fifth, I looked down at my beautiful litter, two males and three females whimpering and demanding milk. While Sarah's parents poured everyone hot chocolate, Zack crawled slowly next to me, as close as he dared, and whispered, "I've got the antidote."

I shook my head. If I drank it now, I might change back immediately, but that wasn't why I said 'no'. Zack nodded, "I'll give it to you tonight, when they go to bed."

I shook my head, making sure that the Hendricks weren't watching.

"Tomorrow?" Zack seemed confused until he followed my gaze down at the five puppies nursing contentedly.

Zack said, "How many weeks? One?" realizing that I wouldn't abandon my puppies, even though it meant being stuck as a dog for that much longer.

I shook my head again and again as he counted up. "Two? Three? Four?"

Zack paused. "You're not changing back, are you?" he said with sudden realization.

My eyes bugged out. What!? I liked my puppies, sure, but I was _not_going to be a dog for the rest of my life!

"Oh, sorry. Five? Six? Seven? Eight?" he continued, until I finally nodded at eight weeks. Sarah had been looking up how to raise puppies, and weaning ended about then. As much as I loved these strange little bundles more than I ever expected, I wanted to get back to my life.

"Jesus, Derek," my brother said, shaking his head.

Sarah finally noticed him crouching beside the proud mama. "How's she doing?"

Zack was startled, but recovered quickly. "Not bad."

After Zack went home, a half hour later I had my sixth and final pup, another little girl. While the others were clearly German Shepherds, this one looked like a mix, and she was noticeably bigger than the others. Looks like Samson got one past the goalie after all! I had to nose her over to my teats, which were already practically empty thanks to her older siblings, but I made sure each furball got a fair shot.

Raising pups wasn't hard, but it was_exhausting, and I had to eat a _lot to keep up with the milk I was producing. After the pups eyes opened and Sarah got a better sense of their personalities, they got their names. One male was named Beefcake, in honor of their fathers), and if I could have had my own input I would have - she named the second male "Benji" after her brother.

How could I tell her that Ben had been the cause_of all this, and that he was horrible, and no pup deserved to be named after that horrible monster? I took to calling him Jamin in my head. Sarah named the four girls Flopsy, Blueberries, Cream, and, believe it or not, she named the Dane-mix _Derika. She named one of the bitches after me, and the males after Ben.

Finally, the pups were completely weaned and ready to find their new homes. As much as I wanted to be human again, I would miss my life as Sarah's pet dog. I shared her bed every night, and sometimes, when I was lucky, the eighteen-year-old (her birthday was three weeks ago) couldn't resist anymore. Sarah learned quickly that I didn't need peanut butter; I was content to lick her whenever she spread her legs for me. She blushed each time, and afterward always said "That's the last time," but after a few days I always got another chance. And Sarah, unlike Ben, wasn't a selfish prick. She always returned the favor, usually with her tongue.

I gave Zack the nod next time I saw him that the time had come, and he promised to come by late that night with the antidote. I was hardly able to walk for excitement. I would be_myself_ again! I could play video games, go to school (never thought I'd be excited for that), and flirt awkwardly with girls again! I knew I wouldn't fare well with the ladies, and my stint as a bitch didn't help with that. Flirting with dogs was a piece of cake - you just lift your tail.

Or sometimes, not even that. Just my luck, Isaac was walking Samson that very day, and Sarah and the football player started talking. What was Sarah thinking!? She _knew_as well as I did that I'd never really gone out of heat, though she couldn't find a reason why on the internet. Sarah had been so careful, even when walking me a few days after giving birth, well aware that I might already be fertile again.

Now, though, the picturesque Isaac had drawn her attention once more, leaving me to crouch and cower before the mighty Great Dane once again. The huge, Harlequin Dane noticed my scent immediately. He wasn't about to take 'no thanks' for an answer, either. Before I could even yip, the massive animal stuffed his snout beneath my tail.

I was about to protest when his huge tongue _lapped_against my swollen spade. Instead, I dropped my jaw, eyes bugging out. It felt so _good!_I hadn't been fucked since the day Ben 'disappeared', and Sarah's fingers and tongue just couldn't match the dog's wet organ, and certainly couldn't match his huge, glistening cock.

Slowly, I raised my rump for Derika's father, shivering as the horny dog _slurped_my engorged pussy. I wondered if he remembered me - he was certainly forward enough. Isaac and Sarah were locked in each others' eyes, having completely forgotten that this _exact_problem had happened five months ago.

After every lick, I opened my mouth to bark, but no sound came out. I pushed back, my floppy teats swinging back and forth. Did Samson realize he was partially responsible for those distended mammories?

What am I doing!? I wondered, realizing that if Samson climbed on my back, it would already be too late. The teenagers hadn't been able to pull him off last time, and they wouldn't this time either. Samson would wrap his huge paws around my hips and give it to me, whether I wanted it or not.

And God, did I want it. I was_desperate_ for him to climb on up, hump forward, and tie with me, pumping load after load into my fertile womb. My bloated spade was trembling beneath his tongue, spreading apart so that more and more of his fervent licks went deeper and deeper. Every fibre of my being cried out for the Great Dane.

Whining, I felt a paw on my rump, and I knew it was too late. He was going to take me again, his fat, throbbing cock oozing me full of little mutts, and I'd just wasted my only opportunity to stop him. With a whimper, I spread my legs and buckled my knees, my eyes clenched shut.

"Bad dog!" Isaac yelped, yanking on the leash.

The oversized paw in question was ripped away from my rump before it could wrap around me, and Samson barked, but was help away as Sarah jumped back, in shock. "Holy crap," she gasped. "It almost happened again!"

Isaac blushed, looking over at her. "I saw on Facebook that one of the puppies took. Since, you know, _he's_the father, I wondered if I could have that one?"

"Her name's Derika, and well...I guess so. They all need homes after all. My parents won't let me keep more than one dog."

Isaac says, "Wow, cool. I can't wait."

Meanwhile, I stood there, trembling for two reasons. I'd almost given in and risked getting knocked up again on the very day I was supposed to change back, and also because my entire canine body was shaking with desire for the big, muscular stud dog just feet away. My sopping pussy was leaking both his saliva and my own arousal, more than enough to prepare me for him (since I'd had less last time).

"Look at her," Sarah said. "She _wants_it."

"Uh?" Isaac said, surprised at the wording. Looking down, he realized Sarah didn't mean that I wanted to keep Derika. "Oh. Yeah, she's trembling..."

Sarah said, "You know, she just weaned puppies. The internet says she won't be in heat for another three to six months."

Isaac shrugs, "Yeah?" not sure where this is going.

"If she really wants it, why not let them? No harm, no foul, right?"

Yes, harm! I whined. 'The internet' didn't know that I was magically transformed to be the perfect mate for Pancakes! Now, I didn't know for sure that my permanent heat just meant I was always horny, or if, now that my womb was empty, it meant that I was overdue for another litter, but now was certainly not the time to be taking that risk!

"Right here on the street!?" Isaac gasped, blushing and looking around.

"No, we're still close to my house. We could use my backyard. Lord knows the neighbors breed theirs often enough they can hardly complain."

"A-alright," Isaac agreed, and they walked the two of home, a gentle _drip, drop, plip, plop_trailing behind me.

How am I going to get out of this!?

I still hadn't thought of a way when they opened the back door and lead the two of us into the backyard. I noticed that the puppies were done exercising and were sleeping outside in a big pile on a nearby dog bed. Sarah's parents weren't home, so they weren't going to stop her. Desperately, I looked over to my yard to see if Zack was around, but he wasn't, either.

Quivering, I looked up at Samson, the eager dog already half-hard and ready to mount. This is really going to happen, I realized.

Isaac could barely restrain the huge Dane, while Sarah leaned down to remove my leash. She whispered in my ear, "You want it, don't you? Then go ahead!"

Sarah was beaming at me as I stepped forward, free from restraints. Oh, I could run for it, but Samson would catch me. Maybe they could pull him away from me in time, but probably not. Shivering, I realized that Sarah was right. I _did_want this. Whimpering, I turned away from Samson, raised my tail, and barked at him.

Isaac was about to let go of the leash - just as Zack walked into the back yard, glancing over at the scene over the fence. His eyes widened and he shouted, "Wait! Stop!"

Amazingly, Isaac managed to grab the leash again, even as it started to fly from his hands, the Great Dane tugging powerfully at his lead. Digging his feet in, he counterbalanced the hundred-and-fifty pound behemoth. Sarah and Isaac turned to the twelve-year-old, who had far more experience breeding dogs than they did.

"She's not ready to be bred," Zack gasped, rushing over to the fence.

Sarah tried to defend herself. "Well, she was...flirting with Samson a lot..."

Zack blinked. "She was?"

My brother stared down at me, knowing how true that might be. I blushed, but thankfully no one could see. Zack said, "Hold Samson still. Let's see what she does."

He was letting me choose? He knew what could happen...the risk I would be taking. Again, I had to consider what I really wanted. He might not even knock me up, and I'd be back to my old self in no time, but even if he did, it would just be another five or six months living with Sarah. Another six months before her beloved dog disappeared forever with no explanation. Those were good things!

Whining, I took a step backward, waggling my raised rump at the Great Dane.

Isaac said, "There's your answer."

Zack's jaw dropped. "But..."

Isaac let go of the leash, and this time, Samson wasted no time. The huge dog barrelled toward me, leaping onto my back.Yelp! I winced, as my legs buckled under his enormous weight. He snorted, his warm breath blanketing the back of my head as the first large droplets of drool splattered my neck.

Why did I do that? Zack gave me the perfect opportunity to escape. Now I'm going to get stuffed right in front of the girl I like, her stupid-ass boyfriend, and my own brother - not to mention my own puppies! But when I felt Samson's huge, bony tip prodding up against my bouncing vulva, I knew exactly why. None of that mattered when the time came. All that mattered was the sheer, intense bliss_of mating. I would suffer for half-a-year for _one minute of sex with Samson.

Zack had hesitated, but now he yelled and opened the fence between our yards. "No, stop him! It's not safe to breed her again so soon - she could get hurt!"

Sarah and Isaac exchanged glances, not having thought of that, but they stood, frozen and helpless as the Great Dane lowered his hips, angling his first thrust for my heat-swollen spade.

Zack ran to intervene, even though I was _barking_at him to stop, to leave me be, to let Samson have me. He ignored me, sliding to the grass beside us, reaching forward to push Samson's cock out of the way.

He was too late.

Samson growled and thrust, slamming himself deep into my suddenly overstuffed cunt until my eyes were so wide I could see stars. Thank God I'd given birth - the pain from last time was a gentle ache now as I squeezed down around his fat Dane cock.

"Help me get him off her!" Zack cried, but again, Isaac and Sarah did nothing.

Except Isaac said, "We tried that last time - there's no way he'll let her go."

Zack threw his hands up, frustrated, nowhere near strong enough to dislodge a horny Great Dane. The spotted dog hammered deeper and deeper until he was hilted inside me, his tip grinding up against my waiting womb. My tongue spilled out the side of my mouth, and I, too, was drooling as he had his way with me. This time, he'd claim all my puppies, a litter of 6 chubby little Great Dane mixes. I would absolutely be_rolling_ around to get anywhere when my belly swelled.

"Dammit," Zack gasped. "He's going to knot her!"

Sarah took a step forward and stood up for me. "Zack, back off. She's obviously enjoying it and she's not your dog."

Zack glowered at her, never mind her five years seniority. He said, "That's not the point - he could hurt her."

Oh, it hurt...it hurt so good. Every violent thrust reamed my tiny body, lifting me off the ground as he pulled back and pushed in, sliding through every inch of my tight, quivering passage. He was so wide, I was literally bulging beneath him, but the small discomfort was worth it. Samson leaned forward, keeping himself buried deep as his knot began to swell, his half-thrusts still sending his heavy balls into my rump.

Zack kneeled next to me and whispered in my ear, "What the fuck! You want to go through this again!?"

I glanced at him and whimpered, but all I did was buck backward, grinding my hindquarters against him in tight circles. Zack finally sighed and gave up, crossing his arms as he watched his older brother. I wonder if he felt like I was choosing Sarah over him - he knew where I would be staying for the next six months.

Isaac said, "Wow, he's really going at her."

Vaguely, I noticed a few of my puppies had woken up and were watching nervously, too afraid to approach the huge dog that had their mother in his grasp. Derika didn't seem to recognize the dog as her father. Benji was the only pup with the courage to get a little closer.

I didn't care. About any of it. Right now, even Zack's obvious disappointment was just a buzz in the back of my mind. The only thing that mattered was Samson. Not even that- the only thing that mattered was Samson's cock, pounding me mercilessly as his knot began to swell. How long it had been since I'd last had a dog knot in me! I spread my legs apart and pushed back, engulfing him completely as he grew tight inside me. My swollen teats swung back and forth beneath me and my vulva bulged out like a softball around the Dane's enormous equipment, and there was no coming back from that.

With a loud bellow, Samson let loose, humping up and in so hard that I swore he had pushed his pointed tip straight through my cervix. I could feel his huge balls _clench_against my thighs as the first loud, wet _gush_of cum shot straight into my fertile womb. I'd been looking for excuses when I thought maybe I was in heat, but not fertile. Pancakes had wanted pups, and he'd gotten them. I was more than ready to meet the thick, bubbling flood of sperm with quivering, defenseless eggs.

I dropped my jaw and howled, shuddering in every direction as I came, my pussy vibrating like one of Sarah's toys against Samson's thick bulge. Pleasure coursed in waves throughout my body, and I knelt down to allow gravity to help draw his greasy cum into my depths. There was no doubt in my mind that I was his bitch now, and soon the dam to his litter. It's not so bad...

While Samson ensured a nice, fat belly of pups, Sarah and Isaac held hands, and Zack glowered at them. I could only look at him as apologetically as a dog could, with a little shrug - what could I do? Samson!

The huge, swollen gland held everything inside, leaving my belly heavy and sloshing with cum. With a loud grunt, Samson turned around, still squeezing out load after load while I quivered beneath him. I came again, and again, just from the sheer girth inside me, and the sure knowledge that I'd just given this eager dog the next six months of my life. I could only guess what I would do once the puppies were weaned if I saw Samson again.

No, I didn't have to guess. I knew exactly what I'd do: lift my tail.

Finally, he was done, and we stood there panting for almost ten minutes before Samson pulled free without a parting glance at me. He returned, tail-wagging to Isaac, leaving me in a pool of cum on the ground.

Zack tried to come to me, but Sarah was faster, saying, "Good girl...you liked that, didn't you? Well...we can do it again tomorrow, if you like."

My eyes lit up and I barked at her. Sarah was always looking out for me.

Zack rolled his eyes and got up. "Another batch of mutts," he said dismissively. Suddenly, I wanted to bite him!

Isaac stopped petting Samson and said, "Huh? Oh, no, that won't happen. After last time, we got Samson a vasectomy..."

Zack paused. "What!? Why didn't you say something!?"

He's...been fixed?

Isaac shrugged, and Sarah said, "You said you were worried about Tinkerbell."

Zack said, "Not anymore."

The next morning, when I was walking outside, Zack ushered me over to the fence. I wasn't sure I should talk to him. Sarah had promised me another breeding with Samson.

"Derek," he said quietly. "I've got the antidote right here. You can take it and we can go ahead with our plan that Tinkerbell ran off, and you were out 'finding yourself'. Or...you can stay here forever."

I shook my head. Not forever. I just wanted to enjoy Samson a few more times.

Zack shook his head. "You're letting the magic get to you, Derek. Every day you stay here, you get used to your new life. You'll never want to come back. You'll stay a dog forever, making puppies..."

_That doesn't sound so bad..._I looked up at him, cocking my head.

Zack rolled his eyes, explaining. "I can tell how much you like Sarah. You've already stayed with her for half a year. You won't want to leave because it will devastate her. Better to leave her now, before she becomes too attached."

Zack paused, and added, "Or never leave at all." He held out two hands, one that was empty, and one with the bottle of antidote.

He was right. I had to choose, and as much as I liked my life as a dog, and knew that I'd live a happy ten years with Sarah, she was going to college soon, and had her own life. And she was spending way too much time with Isaac, anyway. I had to return to my old life, even though it was decidedly less satisfying. Meet girls, learn facts, get a job...then maybe I could spend time with Sarah as equals, not as her pet.

It hurt, but slowly, I nosed the antidote.

* * * * *

I couldn't wipe the tears away from my eyes enough. Tinkerbell was gone. Someone had left the front gate open, and she was gone. At first, I expected to see her show up, tail wagging at the door, but as the days turned to weeks, I knew that wasn't going to happen. I could only hope that wherever she was, she was happy...

I swivelled my chair and slid to my desk. Isaac emailed me again to go out. At least that was going well. We were talking college plans, and SoCal was looking like a good option. Idly, I reached down to pat Benji's head. My parents would never try to give him away, not once Tinkerbell disappeared. I'd been hoping to take Tinkerbell to college, finding some housing for dogs somewhere, but Benji would do. He was cute, and he liked peanut butter. I wondered if his ears would ever stand straight up.

As I reached for my makeup, I noticed the corner of Ben's phone sitting in the corner. I'd hidden it from the police when they searched through his room. We still had no idea where he was, or if he was even alive. At first, I'd thought he'd run away to find Derek, but Derek had come back. Said he'd had to 'find himself', and I guess he had. He seemed so much older than before, so much calmer and composed.

But Ben never came back. Just like Tinkerbell.

Maybe it's for the best. I don't know what I'd say to him about the video I found on his phone. I couldn't let the police see it, and I couldn't let my parents know. I'd_suspected_ he was abusing Tinkerbell, but I never would have guessed exactly what had been going on.

Poor Tinkerbell.