Extra Credit: Milktec Industries Presents

The four young women filed into the classroom, a cloud of giggles and chatter. Suzy clutched her notebook to her chest, daydreaming about Big Mike Tanner. He’d just wished her a happy birthday and complimented her skirt. “He said he liked the dog,” she chirped to her friends. It was turning out to be a wonderful eighteenth, even if she was the last of her friends to reach the milestone. The future seemed brighter than ever from only a small compliment. Soon, she would be walking across the stage as a proud graduate of the Pilmans School of Sophistication. She and Big Mike would go out driving together, maybe even smooch once or twice. He kept saying he was going off to join the army to fight Reds, but she could talk him out of it. He could get a good job at home, settle down, and consider raising a family.

“He is a dog,” Nicole said, souring the fantasy as they took their seats. “Really, Suzy, you could do much better than Mike. You know, I heard from Becky Sanders, from over in Colliertown, that he’s not so big after all.”

Suzy’s cheeks reddened as the other girls laughed. Nicole was the bawdy one of the bunch, the pepper to Suzy’s sugar. Opposite in every way, they’d been fast friends since arriving at the school three years earlier. The other two girls, Jessica and Laura, rounded out a foursome of inseparable chatterboxes that drove the teachers bonkers at every chance. Jessica toyed with her ruby curls as their mirth subsided, “What’s this for anyway?” She gestured to the room. “Why’d Miss Berry want us to stay after school?”

“And what’s that?” Laura added, pointing what appeared to be a large box covered with a black curtain.

“Want me to go peek?” Nicole asked, her face bright with mischief.

Suzy was spared the scandal of insisting they be good by the arrival of their favorite teacher. Miss Berry walked into the classroom holding a large, silver pitcher. She put it down on a podium near the covered object before returning to the door, pulling down the window shade, and locking it. The familiar teacher looked a bit manic, and Suzy realized she hadn’t seen Miss Berry in a week or two. Normally, the girls would stop by to chat with Miss Berry during their lunch breaks, but as of-age seniors, they could go off campus for their lunch. Suzy felt a stab of guilt as she realized how suddenly they’d abandoned Miss Berry, likely to lonely lunches in her room.

Nicole and the others were not so preoccupied with theoretical empathy, and so they noticed the other aspect of Miss Berry. The teacher had been a petite woman when last they saw her. Now, a buxom pair of breasts strained against her blouse. It wasn’t exactly uncommon. Every young woman knew about Milktec’s formulas and how suddenly an overdose or rogue batch of milk could change a figure from slim and pretty to voluptuous and lurid. Of the four, only Nicole knew someone personally who’d been directly affected by Milktec. Her elder sister joined up as a hucow the previous year. Nicole visited one weekend and refused to tell the details to her friends upon her return. It was the only time they’d seen Nicole blush.

“Hello girls!” Miss Berry said as she shuffled across the room. “Be right with you. Actually, Suzy, be a dear and get the glasses from the back, the little ones.”

“Are we having a party?” Nicole asked.

“No, of course not. This is your final course at school,” Miss Berry answered. She gave a coy wink before walking to the curtained box. She leaned over at the back and pulled open the curtain. It sounded like she was whispering to someone. More curious, it sounded like someone groaned in response. The girls quickly realized that the box was big enough for a person to be inside. Miss Berry stood back up and clapped her hands. “Everything’s all set! Now, to get started, you need to have a drink.”

Picking up the silver pitcher, she walked from desk to desk and poured a shot’s worth of pure, white milk into each glass. Laura held hers up, sniffed it, and asked, “Uh, what’s this?”

“Milk,” Miss Berry answered. “Obviously. Do you girls know who funds Pilmans? Milktec, of course. Honestly, they fund just about everything these days. Part of the curriculum here involves familiarizing our graduates with Milktec’s products and how they make them. It came down to me this year, so I came up with my own plan after doing a little research. The idea is that you’ll know enough about Milktec to jump right in at one of their company jobs. But I say, why not get right in where the sausage is made. Now, drink up girls.”

Suzy, despite the uneasy feeling in her stomach, had never once not followed a teacher’s instructions. Besides, she firgured, its just a glass of milk. She tipped the glass back and let the cool milk slide over her tongue. It tasted wonderful and rich, sweet but not saccharine. She felt it flow down her throat and hit her stomach with an odd splash feeling. Instantly, warmth spread out from her middle, radiating slowly into the rest of her body. The other girls followed suit, each humming quietly as they experienced the same sensations. Miss Berry’s smile grew twice as big.

“Oh, I’m so glad,” the teacher said. “That’s going to make the rest of this so much easier. They told me some girls would think it was a trap. I said, how could this be a trap?” Her hands came up and squeezed her breasts. It seemed odd to the younger women, but watching their teacher fondle her tits made the warm feeling in their cores stronger. “So, let’s begin.”


“I want this to be fun, so I’m going to be completely straightforward,” Miss Berry said. “That’s my milk. From these.” She unfastened her blouse. Her breasts surged into view, almost joyous to longer be contained. Smooth white skin curved into fat teardrops. Wide areolas covered the caps, like snow melt on mountaintops. Thick, inch long nipples jutted out from the peaks, both of them showing a glimmering wetness. Miss Berry sighed with relief as she lifted her tits and squeezed. Moving to the pitcher, she held one nipple over the opening and sent a stream of fresh milk splashing into the pitcher.

The girls watched this pornographic show with blank expressions. Suzy knew something wasn’t right. Small gears in her head turned as though working through fast setting glue. Miss Berry probably shouldn’t have her boobs out in a class. And drinking Miss Berry’s milk was probably not something a good, proper young woman should do. And, for Miss Berry’s milk to be so freely flowing, it would mean that she’d been recently dosed with Milktec formula, which meant of course her milk would also carry the morphological properties. Drinking it would cause all sorts of things to happen.

Miss Berry stood up straight, paused to lick a drop off her finger, and shivered. She picked up the pitcher and walked around, refilling the glasses. She put her hand over Laura’s as the girl tried to drink it immediately. “Ah-ah, better take it slow. We want to fully understand what’s happening. Right now, all of you feel a little tingly all over, isn’t that right?” She waited for them to nod. “That’s good. You want to embrace that feeling, really let it wash over you. You remember learning about hormones in biology. The milk you just drank is going into your blood stream and being absorbed by your bodies. The little bits of science in there are telling your body to make more hormones. And who knows what those are going to do? Come on now, don’t be shy.”

Jessica raised her hand, “Make our breasts grow?”

“That’s right!” Miss Berry cooed. “Go on and take another drink girls.”

The four of them looked at each other dumbly, but each one swigged down the delicious milk. When the empty glasses clacked on the top of the desks, Nicole said, “But, what if I don’t want to have big boobs?”

Miss Berry’s face wriggled up in confusion, “Why not? Oh, Nicole, they feel so wonderful once they grow in. It’s like being in heaven all day long.” She punctuated the thought by giving her tits another hard squeeze. “More importantly, you’ll be making milk, too. You all remember how much it helps the war effort. Milktec Hucows are what lets us beat the Soviets! Our boys in green drink the stuff by the gallon. Think about it, your milk could find its way across the world to fill up the canteen of a young man fighting for your freedom.”

“We’re gonna be hucows?” Laura asked.

The teacher shrugged, “You could be. That’s what this is all about. Learning what it entails so you can make your choice as independent young women joining the workforce. Yes, Suzy, you have a question?”

“Is it…is it normal for my, uh, privates to feel warm?” Suzy’s face turned beat red, which matched the feeling of heat flowing over her skin. She squirmed in her seat. She’d felt horny before, but never like this.

“Perfectly normal,” Miss Berry assured her. “Let’s dispense with these prudish words. ‘Private parts’ — bah, such a silly concept. Look at me, do I have private parts?” She waggled her thick tits at the room. “No, its your pussy dear. Or cunt. Snatch, quim, slit. Any of these words, whatever you like. You’ll find that men and women get the proper idea when you call things by what they are instead of what other people tell you they should be. Your pussies will be getting very wet about now. Mine is wet all the time, see?”

She unfastened her skirt and let it drop to the floor. She kept her heels on as she kicked the garment away. Next, she pulled down her panties, wiggling her ass in the air with delight as she stripped. The others watched with pure fascination. They’d never seen another woman fully naked before, at least, not like this. When Miss Berry stood upright again, she moved her fingers down to her pussy, spreading the wet lips apart to show her students. “There, see. Wet enough to put three fingers in with no warm up. It’s a side effect of the serum. Speaking of which, time for another drink.”

The glasses filled and emptied again. An odd pressure built in Suzy’s chest as the next gulp of milk warmed her belly. She unconsciously rubbed the small pads of her bra, trying to tease out the faint ache in her breasts. The others had similar problems, but Jessica was the first to do something about it. The redhead already sported a decently sized pair of boobs, particularly compared to the near flat chests of the other three. Perhaps Miss Berry’s milk affected her more because of that, Suzy figured as she watched her friend strip to the waist.

“Good!” Miss Berry said. “Jessica has the right idea. Go ahead and strip, girls. You won’t want to be wearing those awful bras when you fill out. Goodness, Jessica, you’re a natural. Ladies, watch.”

Jessica grunted as she pulled off her blouse. She took big huffs of air as she unfastened the hard wire bra. For a redhead, she had a darker skin tone than Suzy expected. She’d only ever seen Jessica’s back when they changed together, and now she regretted it. How could she have not wanted to see those luscious tits before that moment? Jessica sighed as her boobs slipped free and rested on the desktop. Watching closely, they all saw her flesh quiver or twitch or wriggle. It was hard to pinpoint exactly what was happening, like seeing something out of the corner of the eye, except they were all looking right at two beautiful, eighteen year old tits swell with new growth.

Nicole gasped. The changes hit her more suddenly. She scrambled to get out of her clothes. Miss Berry went to help. The instant the small bra came off, Suzy watched her friend’s A-cups puff out like someone was inflating them with a bike pump. A hard pang of jealousy hit Suzy as the same thing happened to Laura. Luckily, as she stripped herself, Suzy felt the pressure in her chest double. With a grunt, she looked down at her chest to watch her nipples turn into puffy marshmallows as the tits behind them grew four times over. Her fingers dug into the new flesh, feeling her pussy quiver with delight from the pressure.

Miss Berry beamed with pride. “God, you’re all so beautiful. Look at those wonderful, ripe tits coming in. Soon, they’ll be fat and heavy with milk. Big udders for you young heifers,” she snorted a forced laugh. “As you can tell, your new boobs — men like it when you call them stuff like that, just like with pussy, so boobs, tits, you know I think I have a list written down somewhere — anyway, your new titties will feel much better to touch and to play with. It’s nice when you do it to yourself, but much better when someone does it for you. So, let’s pair off for a moment. Jessica with Laura. Nicole with Suzy. Massage each others breasts. Do what you think would feel nice if it was happening to you.”

Suzy obediently turned around in her seat, looking at the fat boobs on her friend’s chest. Her mouth instinctively watered as she imagined slurping Nicole’s nipples into her mouth. Instead, they gingerly placed hands on each others breasts, cupping and rubbing one at a time until the urge to touch more forced the other hands into action. Nicole’s thumb grazed over the engorged nipple on Suzy’s right breast, and Suzy felt something shift inside her. Wanting it to happen again, she did the same to Nicole, rubbing her thumb over the hard nub. The gesture worked. Nicole replicated the motion, causing a small squirt of milk to drip against her thumb.

“Gracious, already, Suzy? You were always a good student.” Miss Berry said. “You’ll all start lactating soon. Little drips at first to match the full feeling in your boobies. That’ll get stronger and stronger as your milk production really ramps up. Proper hucows, the full formula ones, can make up to a gallon an hour. They’re hooked up to milking machines as often as they need otherwise the pressure can drive them bonkers. Once your new udders have fully come in, you’ll eventually feel that heavy pressure and some tightness as milk fills you up. Expressing it is as easy as pulling on your teats. Go on, give it a try.”

One by one, they each took a nipple in their hand and pulled while squeezing. Everyone but Nicole made a little spurt of milk on the first attempt. Suzy made a small gush, but didn’t try to brag. Nicole got it after some closer coaching. Miss Berry got the first drops out herself, teasing Nicole’s right tit with the tip of her practiced fingers before squeezing the bottom of her breast and slowly pulling on the nipple. The stream came out in a smooth, uninterrupted arc, spraying across the desk to hit Suzy’s shoulder.

Miss Berry clapped. “Excellent! You’re all doing so well, much better than I’d hoped. But, I bet you’re wondering what now. Here you are with big, milky tits and a pussy that never stops being wet. What are you supposed to do all day? That’s the next part of the lesson, obviously. And for that, I’ve brought a special assistant.” She clacked back across the wooden floor and placed her hands on the black curtain. “Girls, meet your bull!”


With a flourish, Miss Berry pulled away the curtain, revealing a young man sitting in a chair with other boards propped up around him to hold the curtain. The girls all gasped, but only Suzy retained enough of her old self to try and cover her still growing boobs. Jessica, on the other hand, stood up in her desk, leaning forward to look closer at the man. “Is that Pimple Face Kevin?!”

Both the young man and Miss Berry grinned. “Yes,” she answered. “Though, he’s a bit…different, as you can tell.”

That’s not right, Suzy thought, dropping her hand away from her tits as she took in the specimen sitting in front of them. Kevin was a scrawny, short, acne ridden dweeb with dry hair and crooked teeth. The man strapped in the chair couldn’t have been more dissimilar. Clear blue eyes peered at the feast of flesh in front of him. His skin was clear other than the scruff of stubble highlighting his hard jawline. The hair on his head was longer by a few inches, but well kept and glossy. His body wasn’t scrawny or wiry, but a thick chunk of muscle and sinew. His arms flexed against the restraints as he mindlessly groped at the women in front of him. They didn’t know, but the old Kevin had lusted after each one of them in turn. Now they sat in front of him half naked with burgeoning tits dripping milk. He could smell their pussies getting wetter by the second and his own sexual expression tried to respond.

“Why’s his…penis in that…thingy?” Suzy asked. She worried the word was wrong.

“Cock, dear,” Miss Berry said, sliding her hand across the transformed Kevin’s chest. “You see, this was all his idea. Kevin’s been a firecracker at chemistry for a long time. He got his hands on some of Milktec’s formula and said he could modify it to be milder. And that I could use it to help teach you girls about the world. So we set all this up, but Kevin didn’t want things to get out of control before you all got hucowed like me. To be honest, we did get a little carried away last night, which is when I thought up this little thing. It’s a cock cage, and you can see how its keeping him in check. But, we need to focus on the lesson first.”

Suzy didn’t think she could concentrate on a lesson. She didn’t want Kevin to be uncomfortable. The little wire frame was crammed full of his manhood, which seemed to strain more and more against the prison as he looked at the bodies in front of him. “Why is he gagged?”

“Didn’t want him to whimper too much,” Miss Berry answered. “And, well, its a more advanced lesson hon, but some people like to be…contained. Or they like to contain people. We can cover that in a future lesson. For now, its helpful to have our bull bound and gagged while I explain some things. First, as a hucow, your biggest obligation is to make milk. Buckets and buckets of the stuff. You want your boobies to get as big as first prize pumpkins. You want them to leak all the time. Look at Jessica, she’s already got the idea.”

Jessica’s breasts sat on the top of her desk, nipples oozing a small trickle. More fascinating to the others, though, was that Jessica’s hands had found their way under her skirt. She was clearly playing with her pussy, and the teacher hadn’t even told them to do that yet.

“Sex is the best way to make more milk. Fucking causes your boobies to grow bigger. Getting bred is the grand prize, of course, but any kind of fuck will help. The stuff that makes your titties get bigger also makes your pussy feel good. It even makes your mouth feel better when you suck a cock. And your ass, too. That’s right, girls, the rumors are true. In fact, some girls think its even better to have a big fat bull cock shoved in their asshole.” Miss Berry moved her hand around her big ass cheek as she spoke, prodding her rear entrance with a curious finger. “You can tell your body wants more fucking because not only are your tits bigger, but your rump gets bigger, too. As your changes continue, your ass will get bigger and rounder, becoming more attractive to bulls. Your pussy lips, too. They’ll get more and more sensitive as they fatten up into plump cushions that make great targets for cock.”

“Can we see a real cock?” Nicole asked, joining in the fun of playing with herself. Suzy agreed silently, wondering how different a cock would feel inside her compared to her own fingers. The idea gave her the chance to take the initiative again. She did still want to be teacher’s favorite. She slid out of her desk and stripped off the rest of her clothes. Miss Berry was right. Suzy could tell her butt had grown. Pulling at her cheeks felt good, and she wondered what it would be like to have something spread her asshole open while she milked herself.

Miss Berry said, “Suzy’s got the right idea. If you’re all going to ride the bull, you’ll need to be fully naked. Go ahead and strip while I take off the chastity cage.”

They obeyed, watching with interest as the small device came away with several clicks. Why their innocent teacher owned such a thing at all fascinated them, but the sight of Kevin’s cock swelling rapidly pushed any other idea out of their heads. None of them had a concept for how big a dick should be, but the seven inch monster fattening up above a smooth ballsack made each of them quiver in anticipation. “Kevin has already had some enhancements, obviously,” Miss Berry said. “An average man’s cock won’t be this thick around. Most won’t be this long either. The Milktec formula does amazing things to the male body, too. But, I actually think Kevin held back a little bit which is why I’ve prepared a special treat.”

Kevin grunted, lust fading from his eyes to be replaced by worry. His arms yanked against the restraints earnestly as Miss Berry reached behind the podium and pulled out a small case. From within, she drew out a syringe. Kevin’s protest grew louder and somewhat more violent as he kicked and rebelled against the bonds. It seemed odd for him to object since all of this had been his idea, Suzy thought. The needle went into his upper arm. The contents flooded into his system, and his objections stopped as his head lolled.

“Another important lesson girls. When a little pervert doses you with hucow formula in a scheme to turn his classmates into his personal hucows, you can go along with it, but if you’re going to be a mindless fucktoy, you should make sure he is, too. Now, watch the effect on Kevin here.” She stood back, rubbing her breasts, while the girls watched with eager fascination as the seven inch dick throbbed. Kevin’s head rolled from side to side as he groaned and strained against the straps. In seconds, another two inches pushed into existence. The head of his dick turned dark purple and thick beads of clear fluid pearled at the tip. When it seemed like he couldn’t take any more, Miss Berry wrapped her fingers around the thick meat and squeezed.

All of them gasped as cum erupted from the bull’s cock. It shot straight up as Kevin’s body strained. It splashed down on his heaving abs as another rope gushed out over Miss Berry’s hand. Suzy had seen enough. The ache inside her was overwhelming. She bolted out of her desk, waited for Miss Berry’s nod, and then straddled Kevin. The head of his cock instantly felt to big, but she didn’t care. He hadn’t stopped cumming. Thick strands of cum splashed against her outer lips as she wriggled her hips down on him. His balls swelled to increase his cum production to match, hanging off the front of the chair beneath Suzy’s plumped ass. With one final grunt, she shifted her angle and speared herself on his cumming dick.

The orgasm hit her instantly as Kevin’s spunk coated her insides. Milk gushed from her tits, spraying on Kevin’s naked chest and mingling with his own cum. Suzy squealed as her pussy clamped down on the throbbing cock. Miss Berry acted quickly, slipping off Kevin’s gag and guiding his mouth to Suzy’s breast. Heat enveloped her nipple and a tongue swirled around the aching bud before a fresh gush of milk flowed into Kevin’s mouth. He moaned appreciatively and his orgasm seemed to start over again. Suzy bucked on top of him as he drained her titties. Behind her, she vaguely understood the other girls had taken to playing with one another while they waited their turn. Miss Berry took the opportunity to lean over and slurp Suzy’s free nipple into her mouth as a hand went down to squeeze their bull’s balls.

Miss Berry pulled back with a wet smack as cum leaked out of Suzy’s pussy. She looked at the other girls and smiled, “Well, that’s what a nice hard fuck feels like. Kevin’s not going soft for hours, girls. Who wants to go next?”


Enroll today at one of the prestigious magnet schools like Pilmans, where young minds are shaped to lead the way into a future. Milktec Industries happily contributes funding in hopes of nurturing the bright leaders of tomorrow. Why wait? Help us build a better future for everyone today!