Species Experiment - Sol III

"Josiah, it feels so good! Yes~!" Marla moaned happily, her cunt stretched full of his writhing tentacle.

"Oh Marla, I'm gonna cum!" Josiah cried out, letting off the pipe of breast milk.

"Quick! Catch it!" Fos called to IO.

The clear tubing moved rapidly, the ones latched on Marla's breasts moving to stuff in her mouth. The one in front of Josiah dropped down and it's opening expanded wide, stretching over the head of his cock as he began to cum. It sucked powerfully, pulling gallons of thick spunk from him. A delicious mix of spunk and milk poured into Marla's mouth from both pipes, forcing her to swallow as much as she could. She did so with relish, sucking on the pipes as she came. Her pussy squirted all over the floor and her knees shook. She held onto the tubes to keep herself upright as her body shook with pleasure. Her belly expanded with the thick seed being pumped from Josiah. He moaned happily as the last of the orgasm trailed out and the cum stopped pouring forth. His tentacle weakly slipped out of Marla as he sank to the ground from the pleasure of the orgasm.

"What were the volumes on that?" Bae asked curiously.

"She produced six gallons of milk in that time, two of which was pumped back into her mouth when the piping switched direction. On top of that, she also received four gallons of his semen." Fos informed her.

"Interesting, because look at this. I think her body is reacting to the milking. We pulled so much from her that... she's expanding. They're getting bigger, trying to compensate." Bae pointed at Marla, who's breasts were expanding further, becoming the size of watermelons on her chest, big, perky watermelons. Milk ran in thick streams from her nipples and she sank her fingers into the sensitive flesh, making herself moan loudly. The milk spurted forth in thick geysers, spraying all over the floor in front of her.

"That's an interesting reaction. We'll have to remember that, their bodies are adapting on their own. Alright, for the next one, we're gonna need to let them lose on one another. I think this should be interesting." Fos smirked, disabling the chains.

Josiah felt it first, his arms falling free of the chains. He held up his hands and looked at Marla. She cocked her head and then smiled, realizing the same thing.

He leapt on her with a fervor, pushing her flat on her back. His enormous cock was ready to go and it dripped with thick pre. Her pheromones were filling the room and his lust for her was completely unstoppable. He barely managed to his tentacle wrapped helically around his cock before he speared it deep inside her.

"That's a neat trick." Bae giggled, seeing the results of wrapping his tentacle around it. His cock was almost doubled in size by it.

"Hang on here, I need to keep him from cumming. I want to see if his body reacts like her's did." Fos said, clicking on some keys. A small light band appeared around his cock and tentacle, closing just tight enough to keep him from releasing his sperm.

Josiah barely noticed anything as he was too lost in ravaging his new fiance to care. His hands kneaded her milk-spewing breasts and he slammed his cock in and out of her again and again.

"Josiah! Yes! Josiah, more!" Marla screamed in pleasure as her pussy was stretched in every direction by his enormous cock-screw.

"God your pussy is great! I want to be inside you forever!" Josiah cried, thrusting with every bit of strength his body could muster, which was exceptional. He was feeling very strong right now because of the drugs that filled the chamber mixed with her own pheromones. The concoction made him almost mad with lust and his balls ached for release.

Another minute of wild, animalistic thrusting and he still couldn't cum. It was so close and he was dying for it.

"Josiah, I'm gonna cum again! Yes! So good~!" Marla yelled, wrapping her arms around him. Her clenching pussy made his desire all that much worse and he grunted madly.

As his body fought for an orgasm, his testicles grew indignant. If they couldn't release the cum by orgasm, they would do it by pressure. They began to grow in size, slowly reaching the biggest they had been the last time he held himself back. However, they didn't stop there. He kept thrusting with all he could as his balls jiggled and rolled about on the floor beneath him. They began the size of two large watermelons, sloshing with gallons of cum. After another inch or two, they stopped growing.

"What?" Bae said flatly, staring at his hugely engorged sack, "Is that it?"

"No, it's not. Look. They reached the extent his sack could grow, how far his skin could stretch, so they changed how they were growing. They're getting denser and the pressure his growing. This orgasm is going to be amazing." Fos said, pointing at the subdermal scan of his genitals.

"Then let it go!" Bae called.

Josiah screamed wildly as the orgasm impacted him. It was like they had balled up every orgasm he had up to this point in his life and hit him with them. His cock engorged further with cum and it pumped through his tentacle.

"Oh my god~!" Marla screamed as her belly expanded with cum. It spewed out from her pussy and wet the floor. The sheer pressure of it forced him out of her cunt after the third or fourth gallon and he fell back on the floor. His cock continued to pump cum forth, spurting it constantly all around him in a thick, perverse fountain.

Marla leaned up and crawled towards his cum fountain, putting her mouth eagerly over it. She began to drink it, chugging a gallon of cum every minute. Her own lust was driving her to swallow as much as she could, which was impressive. Her belly grew larger and larger as she stretched herself with cum. After the third gallon down her throat, she couldn't take it any more and she cried out, cum erupting from her mouth. She put her hands around his cock and filled her hands with cum, starting to rub it all over herself. He just laid there, inert as his enormous balls began to shrink back to his normal apple size. By the time they had, Marla was lying on the ground next to him, panting and completely bathed in his semen. Her hand continued to work her own pussy, everything completely drenched in cum. She was in heaven. The only way it could be better was if it had all be put in a tub for her to just bathe and relax in. Yet as she thought about it, that could be made even better if she had her sister in the cum bath with her, her big futa cock driving in and out of her cunt.

Her imagination continued to think more and more perverse things. She imagined Josiah kneeling on the edge of the tub, his cock stuffed down her throat while his tentacle fucked Bell on the other side of the big tub. Her sister moaned in orgasm as her dick added to the cum filling her and filling the bath.

It was pure bliss.

Fos stood in awe at what she had seen. The two humans were lying inert on the floor now, the entire room a mess of semen. Josiah was covered from the belly down, but Marla, she had bathed herself in it from head to toe. She was little more than a big pile of goo and lust. Just sheer exhaution from all the orgasms and milk production had driven her to pass out. Her breasts had returned to the size they had been before she had shown up here, the size increase apparently being a reaction similar to Josiah's testicles.

"Fuck that was hot." Bae said, breaking the silence.

"Let's clean them up and send them home." Fos smiled.

"Yup. Erase their memories and then we can get to it, because fuck I'm horny." Bae whooped, her erect cock bouncing with her exclamation.

"Done and done." Fos said, typing in the commands. IO took care of the rest and the two lovers were returned to their bedroom, barely two hours gone from their lives.

*******

CHAPTER 11 - STUCK TOGETHER

Fos eyed their examinations of Jenine's twin lovers. They already had quite exotic and lusty bodies. They were lithe and curvaceous with ample breasts and wide hips. Their asses by far were their best features and they enjoyed using them. Nothing seemed to get the two girls off more than getting it hard and hungry up the ass.

"You thinking what I'm thinking?" Bae said, crossing her arms.

"Anal lubrication?" Fos said, glancing sideways at her.

"I was thinking minor telepathic connection. Just enough to let them share sensations and emotions when they're close together. Fuck one in the ass and the other feels it. Both of them getting fucked in the ass and they'll both start drooling. Double penetrate both and they'll pass out from the pleasure." Bae exclaimed, throwing her arms up.

"Oh now that would be good. But we need the anal lube as well. Give her the same classic stretchiness while we're at it. Make it so they can take monster things up their asses without the slightest problem. I want to see Jenine destroy their assholes." Fos said with a wide grin.

"I agree. Get them up here." Bae nodded.

In the middle of their sleep Quinn and Quill were teleported up to the holding cell. Quinn slept on while Quill blinked and sat up.

"What's this? What's going on?" Quill asked the blank walls around her.

"Shhh... Sleep." Fos cooed, releasing a sleeping drug in the chamber.

"Wait... you're the ones... How Jenine got her... sexy... body..." Quill collapsed and fell asleep quickly.

"They're starting to catch on." Bae observed.

"It's alright. They only catch on when they come here. Erase the memories of it and they go back to thinking it's just some miraculous change." Fos shook her head, "IO, do the changes we talked of. No visible changes. Just change rectal lubrication and body expansion. Then implant a micro wireless sensor in each of their spines to share sensations."

"Yes ma'am. Commencing experimentation." IO responded.

*******

"Marlaaa~!" Jenine whined as she walked down the hall, "Marla, I'm horny! Quinn and Quill have been gone all morning and their cell phones are off! Wanna fuck?"

She called her name again as she looked in her bedroom. There was no one to be seen and her cock was throbbing hard. Without anyone around to fuck her, she collapsed back on her sister's bed. If she wasn't going to be around to have sex with her, then she was going to jerk off right on her bed.

Tossing her pants and panties away, she grasped her hard dick and jerked on it lustily. Her pussy was soaking her thighs and she humped against her hands. It felt great to finally feel pleasure. After searching for Quinn and Quill, then having to come all the way back here only to find herself alone had left her rather pent up.

"Ahhh! Yes!" Jenine moaned, jerking herself harder.

"Jenine? Really? In my room?" Marla said from the doorway.

"Marla! You're home! Yay! Let's fuck!" Jenine exclaimed, leaping to her feet.

"Yea, sure. Josiah is at work, so I've got nobody else." Marla shrugged, putting down the bag she was carrying. She stripped off her dress and showed off her lack of undergarments. Pussy juices were already running down the insides of her legs and milk began to drip from her nipples.

"Yes~!" Marla cried in triumph, grabbing her sister's arms. She forced Marla around her and back on the bed. Without waiting, she thrust her cock into her sisters waiting cunt.

"Aaah! Not gonna wait at all, are you?" Marla moaned.

"Your cunt feels so good!" Josiah cooed happily, pushing her breasts against Marla's.

Her dick pushed all the way to Marla's womb and she slammed against it. Marla cried out happily, her tongue lolling out the side of her mouth. It grew longer as she moaned louder. Jenine put her lips on her tongue and sucked on her sister's tongue. She pulled it into her mouth and sucked on the long tongue, rather enjoying the taste of her saliva.

"I wuv it~!" Marla cried out, her tongue tied up in Jenine's mouth.

She continued to thrust, making her entire body shudder with pleasure. Cum exploded from her cock and it filled her womb completely. The amazing sensations provide by the semen made Marla orgasm almost immediately. She convulsed and screamed, pussy squirting all down Jenine's thighs. Her tits erupted in glorious fountains of rich milk, splattering all over Jenine.

"Yes~!" Marla howled, arching her back. She had forgotten how amazing her sisters cum felt. It had an almost magical property to it, inducing great pleasure from just touching her womb. She panted and her tongue laid across her cheek, wriggling about weakly.

"That's it! More! More!" Jenine cried, pulling herself out of Marla. She shoved Marla's legs up and buried herself in her ass, penetrating deep up her bum. Pleasure erupted through her body anew, pouring forth from her stretched ass. Jenine panted and rutted lustily, her cock driving back and forth with great strength.

Leaning forward, Jenine wrapped her lips around one of her nipples and began to suck on it. Milk spurted forth and she drank it down. Her cock twitched and began to grow. Pleasure poured through her and her breasts slowly expanded, almost doubling in size. Her shaft reached nearly a foot and a half long, crawling further up inside Marla. Milk dripped from her own sensitive fits and pleasure crawled up her spine. She pushed harder and made Marla whine loudly.

"Here it comes! Feel how much I'm going to pour into you." Jenine shuddered, humping harder. With a loud cry, her pussy squirted and her cock spewed thick spunk into her. She groaned loudly and hugged her sister's legs, shaking with ecstasy.

"Ohhh Jenine, your cock is great. Don't stop. Fuck me until you're satiated. Fuck me stupid!" Marla exclaimed, rubbing her rich, milky boobs.

Her words lit a new and glorious blaze of lust in Jenine's loins. She dragged herself out of Marla amid a thick spurt of goo.

"Roll over. I wanna see that sexy ass." Jenine said, and her sister rolled onto her hands and knees, "Yea, shake that booty."

She spanked her sister and watched her voluptuous backside jiggle and bounce. Her cock twitched at full strength, waiting impatiently for another wet hole. She didn't wait long either, driving deep into Marla's tight cunt in a single thrust. It shoved all the way into her, shoving up against her cervix. Her stretchy body slowly gave way as Jenine pulled on her hips. Her cock finally popped into her womb, touching the most intimate areas of her body. Marla's mouth hung up in a glorious cry of pleasure.

"So deep! So good!" Marla panted, her tongue hanging out of her mouth. Having her womb fucked was by far her favorite thing, even more than getting both her holes plowed. The deep, mind-breaking sensations that resonated throughout her was making her body shake and her muscles clench.

"Your womb is so hot. It feels so good around my head." Jenine groaned, thrusting and shuddering.

"Oh god... When you cum inside me... I'm going to die from the pleasure!!" Marla screamed, digging her fingers into the bed.

"Good. Good! Then die! And I'll fuck your corpse until you come back to life!" Jenine yelled, shoving back and forth. Without pulling really hard, she couldn't seem to get her cock out of Marla's womb. Her cervix was holding her tightly, thoroughly pleasuring right behind her head.

She didn't bother trying to pull out either, instead just made faster and shorter thrusts that made Marla's womb quiver with sensation. The heat and tightness of her pussy was making her body shiver happily.

"Yes~!" Marla moaned loudly.

Jenine unleashed her third load inside her, making Marla cry wildly. Her tongue flopped about as she struggled to stay on her hands and knees. Intense pleasure was rising up inside her as her womb ballooned from the powerful ejaculate.

"Your pussy is great! Yes!" Jenine grunted, keeping herself buried tight in her womb.

"It's too much... oh god it's too much..." Marla panted, her body collapsing. Cum exploded from her pussy, running down her thighs in thick rivulets. She went slack under her, body totally overwhelmed by such insane amounts of Jenine's aphrodisiac spunk.

"Well I'm not done! I'm just... ugh... getting started!" Jenine moaned, tugging against Marla. Her cock was so hard and so well lodged in Marla's semen-packed womb that she couldn't get free. The pressure of it all was making her pussy clench tightly around her cock.

She lustily slammed herself against Marla, making her entire pussy shake. Without the ability to pull free of her womb, she just piledrived it with short, strong thrusts. Their bodies were pressed tightly together and she could feel the sweat rubbing between their skin. Her mouth hung open as she rutted her sister's cunt. She was so hungry for pleasure that she just couldn't bring herself to stop.

"More! More! I want to fill you more!" Jenine panted, ramming her hole as hard as she could. Marla's entire body jerked about as a whole new flood of cum erupted into her pussy. It was already so full and stretched that, her belly just inflated more from the load. The tight cork of Jenine's cock held it all back as she easily passed a gallon in her womb. Yet more pearly semen continued to flow into her pussy, jettisoned by Jenine's lusty dick.

*******

"Jenine! Jenine are you home?" Quinn called as she knocked on her apartment door.

"Oh god I want it so bad." Quill moaned, bouncing desperately on her toes.

"I'm dying for it too sister. Jenine!" Quinn breathed, knocking again.

"Hey girls, what's up?" Josiah asked, coming down the hall towards them.

"Josiah! Is Jenine home?" Quill gasped in relief, "Please tell me she's home."

"A little horny you two?" He smirked, pulling out his house key.

"More than a little." Quill said, wringing her hands together.

"We woke up late today and something has made the both of us completely lost with desire. We have to have her cock." Quinn said in desperation.

"Alright, well she should be home by now." Josiah said as he walked in, "Jenine! Marla! I'm home!"

He walked down the hall and groaned. Lying on his and Marla's well-used bed was Marla, completely bathed in cum from the waist down. The entire bed was sticky with the stuff. Jenine was lying out cold next to her, just as plastered in spunk.

"Oh my! She's asleep!" Quinn squeaked when she saw the scene.

"No! Jenine, wake up!" Quill exclaimed.

"You're not going to get her up. When she wears herself out like that, she ends up out cold for hours." Josiah said, clasping his hands behind his head, "Although now I'm starting to feel a little horny from seeing this. You girls want to do it with me?"

"Could we?" Quinn said, turning to look at him.

"Only until Jenine wakes up. We can't wait." Quill stepped towards him.

"Sure. But I want to get back at her for this, so let's go in Jenine's room." Joseph grinned widely.

"Gladly!" They both said, jumping towards her room as they stripped their clothes.

Josiah took off his shirt and dropped his pants, freeing his long shaft. It wouldn't be as huge or as rich without Marla's milk, but he could still easily satiate these two women.

"Come on, fuck our asses!" Quinn cooed, on Jenine's bed.

"Yes, our butts!" Quill agreed, next to Quinn on her hands and knees.

"How about I do both of you at once." Josiah smiled, his tentacle cock twirling up from under his erection.

"That sounds marvelous!"

He stepped over to Quinn and looked at her tight asshole. It looked wet already and he pushed a finger into it. Both of the girls moaned from the touch.

"Ooooh!" Quill moaned loudly, "I felt that!"

"What?" Josiah said.

"I can... I can feel her pleasure... inside me!" Quill said, glancing back at him.

"Really?" Josiah asked, teasing Quinn's butt some more.

"Mmmm~!" Quinn cooed with pleasure.

"Well tell me if you can feel this." Josiah smiled, rubbing his hands over her ass. He lined up his throbbing, thick shaft and sank it into her ass. It was so tight and so wonderfully wet that it just sucked him right in.