Patreon LogoYour support makes Blue Moon possible (Patreon)

The scientist's children

After he stopped cumming on her face, Marcus began to take over. He grabbed her and tossed her onto the couch. He removed her panties, desperate to pound his Michelle smaller sister. "Marina..." he moaned, wiping some of the cum from her face. He reached down and kissed her, arranging his body to line up his member with her wet pussy.
 
Opening her legs wide for her brothers changed body, Marina was still tasting his cum, stroking her full stomach and smiling greatly, as her body was aroused nicely. Her breasts toped with hard niples, pussy wet and clit straining upwards... And even her young cunt throbbed waiting for the impossible looking big cock.
 
He slowly entered in to her wet cunt, almost instantly sucked into her tight hole. He hit the Hymen and forced his way through, striving to go deeper. He pulled her up to him, her hard nipples against his own. "You like this, don't you?" He asked, teasing her.
 
Marina cried out when he teared her hymen, but pushed harder against the flesh spear to feel her brother arms hugging her more into the big hairy wolflike body. "I love you, Brother!" she moaned and cried, even her tears fall for she was happy, filled, and her fantasies fulfilled. "Easy there, you are soo huge! But I want you to fuck my cunt deeper." she hugged him, stomach filled with his cum, her body boiling, throbbing on his cock, in his lap and loving hug.
 
Marcus nodded, eager to comply with his sister's demands. His cock pushed into her more as he pushed his hips upwards, but he didn't like the way it felt. He wanted to go deeper. He lay himself on his back and arranged her hips so she still sat on top of him. Then he began to thrust forward, bouncing against her as he moved deeper.
 
She rode him, slowly bouncing up and down, groaning and panting as she rode her wolfie brother. Marina was truly streched, the cum and the spear like cock filling her to the brim. Her every crevice was sticking to him, and as his very tip started thrusting into her cervix, she felt like on the brink of loosing her hymen again.

But she loved it, oh, how she felt being on fire, her insides yearning for his cock, his cum, the young body sliding deeper and deeper on the strange cock. It seemed it was still emerging from his body, growing in lenght and forming a knot way below her pussy... So Marina just started to let her whole weight drop on the boner she was riding, wailing as her body was throbbing on him, her insides streching and making way for his cock.
 
Marcus moved against her as she rode him. He was completely aroused now, the full weight of his sister bouncing against his cock was amazing. He pushed hard upwards trying to get her to the knot on his cock. It was getting harder to do so, it seeming to stretch in length as he fucked his sister. "Oh, Marina. You're so tight." He moaned, panting as he tried to keep pace with his sister.
 
"Oh, god, Marcus, you are soo big!" she groaned, feeling her pussy lips streched by his knot, even as his cockhead was pushing into her cervix. But between the two slightly painful point her cunt was getting her pleasure from the thick throbbing cock, clenching and unclenching his whole lenght like she had both of her hands around his lenght.

Timing her squats and grunts with her movements, she tried to loose up her outer and inner openings to the point where he could fully impale her. It needed Marcus final upwards push at just the right moment, but he was in. Marina cried out, her body trembling, as his cockhead and knot rapidly filled her, stopping all possible movements and plugging them together.

Marina was panting, her breaths and heart thumping blood through her body slowly massaging their streched together sexes. The feeling of his brother's cock stuck in her was making her twitch and shake, hugging herself to his torso. She was feeling her breasts too, as her hard nipples was thrust into the fine fur. "Oh, Bro'! I think I am cumming!" she moaned, and was rollercoasting with orgasms in the lap and arms of her hairy grown up wolf-sibling.
 
Marcus couldn't hear her anymore. He was in his own world, pure primal instinct taking over. Her firm nipples in his fur made him wrapped around her tightly. His knot fully embedded into her he tried to press harder, reaching that point of climax he so desired.

He smelled it on her before she said it. The roller coaster of orgasms rocking across his firm cock. He pulled her tighter, his left hand keeping her breasts close, his right pulling her ass deeper onto his wolfie cock. In an instant the world was blank, his mind empty. Then everything snapped into focus, every sight, smell, sound, touch, and taste hit him all at once as he climaxed hard into her womb.

(I hadn't forgot. I had real bad network issues.)
 
Marina groaned and moaned on the great cock filling up her every crevice. Orgasm after orgasm racked her lithe body until she was just quivering at the feel of the hot and fluidy pressure that filled her stomach, just for a moment she lost all sensations, just the feel of the cum radiating life and energy was for her... Then it was like a slow motion explosion, it started to radiate outwards, encompassing her breasts and pussy, even her ass, and the feelings of sensual pleasure, and being filled with her brother wolfs cock got even more intense. She wailed as her body started shaking like a vulcano, gripping and milking his cock, her womb and cervix and cunt and pussy all trembling on him, like multiple hands gripping hard then releasing.

Marina almost fall off as her muscles contracted repeatedly, levitating off her body with flailing arms and legs, but her body's weight was on his cock, not releasing the only stable point... And his cum started its work, almost like their father's special gas and nanotechnology wanted... But even for the man expecting some changes it seemed too slow at first... Maybe his girl needed more incentive? Or would the changes become prominent soon?
 
Marcus moan and let out a howl of pleasure as orgasm after orgasm sprayed onto his cock. He gripped her tighter, the clenching of her pussy and womb making him shoot even more cum into her. He couldn't stop, his body would not let him. In fact, he wanted to thrust faster into her womb. His hips rocked once more, grinding against her innermost walls, his body constantly trying to orgasm in pleasure.

As she began to flail, he kept her body close. Determined not to stop until he could not cum any longer, he continued to thrust into her virgin pussy. He felt her trembling body, moving to kiss her deeply thinking it would be the solution to the problem. As her walls clenched and loosened on the length of his wolfish cock, he let out another howl as he came once more.
 
She was hyperventillating, as the big wolfish cock kept her from getting enough deep breath, but she still panted with the exquisite feelings that surged through her body. She was sliding on his cock, but her womb was clamped on his dickhead, so the torrent of cum just streched her stomach, nothing leaving her.

As the doggie cock started expanding its knot just before his cumming started, now it become big enough to strech her pussy even more, to push against her G-spot and even her bladder, but her cunt was more than filled. This made her opening the recipient of the two-fist sized gland, making her cry out, preceeding his howl, and the pull on her body as her brother turned wolfman pushed more of his cum into her core, while pulling her closer to his furry body.

It made the knot slip in, and reach its fullest size inside, really making them coupled, as now the double grip between the siblings sexes made it impossible for them to move away until it was time... Marina fainted and lay still.
 
Marcus happily moved inside her, panting as he drew to the orgasm that knotted him inside of her. As he came that final time, pushing against her g-spot, he felt am intensive wave of pleasure flow over his body. Gripped together, he was still panting even though she fainted. He held Marina gently in his arms as she was out, taking a more protective role. To him, it was ironic. Taking the role even though he was the younger of the two. With a sigh, he lay down on his back, resting her on his furry chest. His left hand was tangled in her hair, the right softly rubbing her curves.
 
Her insides was slowly milking him again, and she slumbered, sometimes trembling as her body changed too.

Their father warched through the cameras he made to be installed as was the new security system keeping in the children and out any others for now. He was hoping to see some changes now, as he was paid to produce with his new methods. Using the new technology and old magic on his own children just gave them a better position, for if not being secured and used as guinea pigs, they would be surely grabbed and used against him at some point by his employers, or any enemies.
 
He smiled lightly, moving to his hands to her hips. He rubbed over her swollen belly, liking the way it felt on his palms. He was surprised she was slowly milking his cock, even though she was passed out. He let her do it, not that he had much of a choice anyway. He was strangely tired, drained even. With a sigh he drifted off to sleep, her trembling vibrating over his body as he relaxed.
 
She could only remember feeling the hot rod filling her small body, and the warm strechy-squishy feeling of his pleasure fluid in her... It made her feel all tingly... Her dreamless sleep on his new wolfman-plaything just got her body to recognise her mate, as he would say... Nothing smaller would really make her feel this good.

As Marina slumbered, her body started to change slightly. Becoming smaller in frame, but more stronger in lean muscle, her cunt, pussy and breasts first staying as they was, then growing bigger. She was resized for his cock, able to get it, and receive nutrition from his cum, as her normal human insides become smaller.

She lost her reproductive functions, just to get the ability to moisten her enormous new cunt - for her new size, it was quite big inside her. Of course being able to pleasure it and get pleasure out of it was a greatly appreciated bonus. It was quite the change for her, so she did not really changed that much on the outside. Loosing four inches overall while her pussy lips become a little bigger and her boobs stayed the way they was before she lost the height could not be seen a big change as she lay on his brother that become a big monstroisity of a man-wolf before... So, the man watching it all through the cameras had to strain his eyes to see if she changed, or kept resisting them... so he had to release the next phase from the box.
 
Marcus was deeply entranced in his sleep. His mind played the situation, over and over again as if to clarify what he just did to Marina. She was his sister, but where there should have been regret, there was pleasure. He continued to dream in this manner, continuously feeding her his hot, thick seed, as the container released a second gas. He wasn't effected, only stirring slightly in his sleep as the sound of the gas releasing ran through his sensitive ears.

He felt something against his cock, as if something had expanded around his wolf cock. He let out a small lustful whine, feeling his sister's pussy expand even more to fit around the massive cock, his whine becoming a slightly pleasurable moan. He could feel Marina's breasts expand and grow, nipples poking his fur. Slowly he began to stir even more, waking up to find his sisters body changed before him.

Though she was still resting, he kissed her,his tongue exploring her mouth once more. That's how he noticed the changed in her throat. It seemed larger somehow, almost was wet as her growing cunt. He smiles, realizing that the gas was affecting her as well.
 
Marina woke up to the feeling of something ticklung her nostril... and it was like her clit was teased! She not only moaned, but vibrated her whole throat, purring. She salivated, covering the tongue with her lips, sucking noisily on the appendage. she found her nipples get even more erect... nipples, as in all six! She opened her eyes wide, convulsing on her brother...

And as she woke she found his erect member still in her cunt, returning the involuntary hug with a throbbing, making her other dozen nipples get erect, and feel the fur. She hoped that it was only her body becoming more sensitive, and not really growing eight new pair of breasts.... She could count three pairs already swollen to an A cup on her torso, one pair of them her own, up to C cups in her lovely frame... But she also felt her arms and legs, maybe her sides sporting sensitive and hard nubbins! Just like a Thrill's spots, she had them in curving lines along her body, from her tonsil-clit to her pussy-clit, and lower, in an open 8 form.
 
Marcus moaned as she stirred, as her lips wrapped around the tongue. He could feel her throat becoming wetter, his arousal becoming more intense. For a moment he stopped cumming, his cock throbbing in pleasurable pain. He wanted to use her mouth again, to use had entire body, in passionate love. He felt her nipples, all eight pairs, become more erect against his fur. He moaned, closing his eyes as he was lost in lustful passion.
 
She writhed on top of him, sucking on his tongue and milking his cock, trying to stroke all of her nipples on his fur... She was so wet! So horny! But wanted to suck on something bigger than his tongue...

Pushing herself up, Marina groaned and give a last kiss on his stout muzzle, before trying to crawl down from his nice thick, long, sloppy cock. "A little help? I want to suck your cock!" she moaned, feeling his member twitch at her words.
 
Marcus nodded, pulling back as he tried to pull out his knotted cock. Failing, he relaxed himself long enough for it to drop a little. It was just enough to pull out, the wolfie cock slightly limp. He adjusted himself, allowing his body to sit more straight against the couch. He grinned letting it slide across her breasts till it was close to her mouth. "For you, anything." He replied lustfully.
 
She cried out as her insides moved with his try. Then as both relaxed enough, out his cock came, her pussy snug enough that only at the end she started flowing with juices.

But it made her easier to slide down on his furry legs, finally marveling at his cock between her breasts... three pair of breasts, to be precise, her lips closing around the tip. She hugged him, pushing his cock and her breasts together, and started to get into a rhitm of sliding on the wet fur with her open tights, sucking his cock, twirling her tongue, slowly getting more and more of it in her mouth.

Marina found it increasingly exciting that she now had lots of nipples, and they seemed to be even more sensitive than the six on her breasts. She stroked his fur against them, and as she moaned, making her throat vibrating, she found that she could get more of his cock into her mouth, it just now reaching her tonsil to tickle it into pleasure.
 
As she slowly began to engulf his cock, it quickly grew back to its former nature. Her mouth was amazing, much better than it had felt last time. Marcus later out lustful moans of pleasure, her moans vibrating against his throbbing wolfish meat. As they were rubbed between her breasts, he grinned, jerking his hips forward by accident. He felt her tonsils the pressure building up like never before. Before he could even open his mouth to say "cum", he blasted into her mouth.
 
She felt the pressure and then the throbbing between her breasts, and then through her lips, but she did not wanted to let the thick meat out of her mouth. She had to gulp it down, had to feel the hot fluid filling her stomach, so she just moaned, thrusting more of the thick cock into her mouth, feeling her throat throb with her brothers cock, feel the slimy cum help her thrust another inch down, then it was only the bulging head of the meat rod trying to find more space, and she could not stop herself from sliding down his wet fur, getting more cock down her throat, stroking more of her new nipples against his fur, leaving his legs, getting lower and lower, and cumming herself as her lips reached the knot and her cunt throbbed with synch with her mouth and throat, as the thick wolf cock slid into its new home, filling her with more cum.
 
Marcus moaned in pleasure, loving the way the cum vibrated against her breasts. He was amazed how deep his cock went down her throat, continuous sprays of cum lubricating the massive wolf cock and giving him greater pleasure. He grabbed the couch as her lips touched his knot,jerking his hips up to blast another hot, thick load into her mouth. He could smell her orgasm from where he lay, making his cock throb and vibrate more in her mouth.
 
You must log in or register to reply here.
Back
Top Bottom