Futanari - Little sister

"How long does it take?"

"After I climax, only two minutes."

"Can you let it disappear now?"

"Hmmm..." she hesitated. "It may take a while." she added.

"Why?" Ben asked.

"Well, your hand feels extraordinarily good, brother."

Ben startled and suddenly recalled that he had been slowly caressing her cock as they talked. He pulled his hand back.

"Please don't..." she whispered. "I liked it there..."

Ben complied, a small part of his mind knowing that he was far gone now. And that he was hard as a fucking rock in his boxers. He grabbed his sister's cock more firmly, feeling its entire length coated with what was probably her own pussy juices. Or maybe it was precum? When his hand reached the tip, he indeed felt a copious amount of precum dribbling slowly from her cock. When he slipped his hand back down, Lily arched her back and groaned in pleasure.

"Can I see..." Ben started to ask.

"Of course..." Lily said, reaching to turn the lamp on.

Lily then pulled the blanket away and Ben marvelled at the sight in front of him. And even though he had touched it, seeing such a huge cock jutting from his sister's pussy shook him to the core. It shocked him rationally. He had been living his life according to rationality and science, was learning about the human body at college... But this... This was impossible. Impossible yet right there.

It also shocked him emotionally. Lily was lying in front of him, naked except for her tank top over her breasts, covered with sweat, writhing in pleasure as he caressed her. Her own hand was playing with her pussy as he kept caressing her cock. That was the stuff of his fantasies! And now this huge cock? It was too much! Ben turned on the bed to be more comfortable, and he heard Lily gasp. Looking up, he saw her looking at his erection.

"Are you hard, brother?" she asked again.

"Yes... I'm sorry, but yes. I don't think I've ever been so excited in my entire life." he said.

"Don't be sorry... I certainly don't mind. In fact," she said with a smile "I'm rather pleased that you are. Don't stop what you're doing..." she finished, almost purring with pleasure.

As Ben kept masturbating his sister, he marvelled at the sight of this still-growing cock. It must now be close to ten inches long and proportionally thick. Shit it was huge! After a particularly long moan, Lily squirmed on her bed and suddenly reached up to grab her tank top. When she pulled it up and over her head, undressing completely, Ben gasped again. Lily's small yet sexy breasts were very clearly much bigger now. If normally she wore B cup bras, she was now at least a D cup, with huge aureolas and nipples on top.

When she squeezed her own breasts with her hands, Lily groaned and cried out in pleasure. "Don't stop Ben... go faster, yes, like that... faster again... Oh shit!" she cried out before her entire body arched upwards. Ben's eye widened again as he saw a huge load of white cum spraying from her cock, shooting upwards before falling back down on her stomach. Even during his most intense orgasms, even if he pooled all of his jets of sperm into one blob, it would never amount to this much sperm. Then another jet appeared, and another.

After looking at the pool of sperm that was already flowing down her sides, Ben looked up at Lily's face. And now he could see, without a doubt, that her eyes were glowing. And so were her nipples. Looking more closely, he also saw faint lightening-like tendrils of blue-green light emanating from her nipples all around on her skin. Like veins of light, the tendrils danced a few seconds before disappearing, only to be replaced by new ones.

And her cock kept spewing sperm. After the first three big streams, there were maybe four or five other smaller ones. By the time she was done, she was pretty much covered in sperm. She came back down from her intense orgasm and looked at him, all the fear gone from her eyes. She was grinning and stretching like a cat, her long groan sounding almost like a cat purring. Lily pressed a finger in the pool of sperm on her belly and brought it to her lips. Then another and another.

Soon she was drinking a lot of her own sperm and Ben was looking at her, his mouth agape. "Why don't you try some?" she asked. Before he could stop her, she had placed her cum-covered finger inside his mouth and he tasted and drank her sperm. While it had the same consistency as his own regular sperm, it tasted quite different. It was actually good, very sweet. Lily's eye were still glowing slightly. As he felt the cum flowing down to his belly, he felt a pulsating warmth spread in his chest.

Irritated by his constricted cock, he slipped his boxers off, murmuring "Fuck it..." in the process. Lily looked at his cock and purred in pleasure. Ben was still holding her cock and soon he felt it get smaller and smaller until, a minute later, it fully disappeared.

Lily, looking at him with a hand on his thigh, said "So? What do you think?"

Staring at her nude body, her big breasts compared to her frame and her flawlessly feminine pussy in glorious display, Ben said "I think you're the most beautiful and sexiest girl on the planet."

Lily giggled and said "Thanks. But what do you think about my cock?"

"Oh... Well, I think that's obvious!" he said, glancing at his own cock.

"That's for me?" she asked, grinning.

"Yeah. If you want it. But first, let me check your pussy."

"With pleasure..." she said, spreading her legs wide opened.

Ben knelt between her legs and brought his face right next to it. It was perfectly normal. Wonderfully beautiful, but normal. "Can I check inside?" he asked.

"Right now, brother, you can do whatever you want with me." And so he slipped his finger inside her and curled it upwards. Lily gasped and moaned, then giggled. "If you keep doing that, the cock will come back..."

"Really? So fast?"

"Oh yes. I have a male's cock, but I can climax as often as a woman!" she said, giggling.

Ben moved up and shuffled his knees, walking on all fours above her. When Lily lifted her legs and wrapped them around his waist, he looked up and mumbled "Oh, I wasn't about to... I wasn't trying to..."

"I know, she replied. That's why I grabbed you before you could move away." They stared at each other for a long while, and Lily said "Why don't you fuck me? We both know you want to..."

And so Ben lowered himself and found his sister's pussy. He groaned as he penetrated her, her pussy feeling like a normal pussy. The best pussy ever, the pussy he'd been dreaming about for a long time, but still a regular female pussy. He buried his face into her neck and began fucking her. Soon though she grabbed his head and pulled him in for a kiss. When she started to french kiss him, he moaned, but when she pushed a tongue that was too long inside his mouth, he was surprised. Lily's tongue was way longer than any other tongue he had experienced before.

It wasn't important though. Not at all. He was fucking his sister, overwhelmed by pleasure and hearing her moaning. Soon though, he felt her cock beginning to grow again, sliding between their two bodies. The precum-lubricated cock slid between them and it clearly enhanced the pleasure Lily was feeling. Suddenly, breaking the kiss, she said "Wanna suck my cock, brother?"

"Gods yes!" he heard himself cry out.

Ben pulled out of his sister's pussy and knelt on the bed. Graceful as ever, Lily stood up and pushed her cock into his face. It was now about six inches long and Ben grabbed it at the base and opened his mouth. Surprised by the girth and the amount of space it filled in his mouth, Ben experienced his first cock. Looking up into his sister's eyes, he saw that they were glowing again, and he abandoned all hope of understanding what was happening. Magic. It was fucking magic.

He did his best to please his sister and it was working. Soon her cock was fully grown and Ben couldn't even take half of it in his mouth. Yet Lily was moaning like a succubus and he knew she was on the verge of cumming. When she froze and controlled a shout that would have wakened the entire neighbourhood, Ben braced himself for her cum. Surely she couldn't cum as much as she had earlier?

Oh she could! Fuck! In an instant, his entire mouth was filled with the sweet stuff. After he swallowed his first load, enjoying the sweet taste, she came again and he felt some of her sperm overflowing down his chin. Lily pushed her cock deeper and Ben almost choked. Yet she was cumming again and pushing harder and harder. Suddenly, without warning, his throat relaxed and he felt Lily's entire cock slipping down his throat. He briefly fought his gagging reflex, but it passed. When his nose buried itself against her taut belly, Ben was shocked.

Lily pulled out one time, letting him breathe, before plunging back. "You need to drink it all, brother..." she groaned as what felt like litres of her sperm filled his belly. She fucked his face a few times and Ben's mind was blown by the sensations of this huge cock opening his throat. He had seen this in porn, with tiny blonde girls throating huge black cocks, but this was insane. And insanely pleasurable! Ben could feel his cock twitching in pleasure.

Lily eventually stopped fucking his throat, pulled out and let him breathe normally. Ben fell on all fours, convinced that he was going to vomit it all. He had swallowed so much! But he didn't. He actually felt very good, a warm, radiant sensation deep inside his belly that was spreading all throughout his body.

His head sprung upwards when he felt Lily's huge dick land wetly on his ass. And lower back. "Ready for this, brother?" Lily asked behind him.

"Wait, it can't possibly... There's no way you're going to be able to fit all of—"

"You worry too much, brother." Lily said, obviously drunk on lust. "Besides, you're already starting to change..."

Before he could begin to wonder about what she had meant, Ben felt her put the tip of her cock against his asshole. Obviously he'd never had a cock up his ass before, nor had he ever played with his fingers or toys back there. His medical student mind knew that his sister's monster cock would tear him apart. Then again, a sister wasn't supposed to have a twelve inch cock.

He cried out in pain as he felt the entire head of her cock slip through his sphincter. But there was much less pain than he had anticipated. Shit! His asshole was stretched beyond measure, her cock probably as thick as his wrist. But not that much pain. In fact, Ben had to admit that it was starting to feel really nice. As she held on to his hips, Lily pushed her cock inside him. She'd go two inches in, one inch back, two inches in... A minute later, with roughly half of her cock inside him, Lily was already fucking him harder and harder.

With every other penetration, Lily slipped ever deeper. Ben imagined that her precum kept his asshole lubricated, but he couldn't believe that it was happening, nor that it was making him feel so good! He was pretty sure the last inches would be the most painful, his bowels not expecting such a monster. Yet he gasped in pleasure as he felt her thighs on his ass and soon his entire body was rocking violently with every thrust. Lily was pounding into him savagely, fucking his anus with her monster cock.

Turning his head to look at her, Ben was fascinated by what he saw. While she was still definitely his sister, Lily was now clearly a magical creature. Her eyes were glowing so much that the entire room was blue-green. As she licked her lips with her long tongue, they were starting to glow faintly as well. Her dark red hair was now longer, brighter and seemed to be almost floating around her.

Her breasts had grown tremendously, swinging heavily with her movements. Her nipples were nearly as bright as her eyes and the tendrils of light emanating from them now covered most of her torso. Lower, above his own ass and her cock, Ben could see that Lily's bush was now glowing as well. Finally, he could see her fingernails getting longer and, of course, also glowing with that eerie light.

Still on all fours, being sodomized for the first time, Ben still couldn't wrap his head around how good he was feeling. He watched her pulling away so damned far before ramming all that cock into him again. Yet no pain, only pleasure now. So much fucking pleasure! He'd had great sexual experiences in the past, but this... This was on another level! He had never know that an asshole could be so—

But his train of thought stopped suddenly, completely derailed by a new sensation. An utterly new sensation. Subtly at first but quickly becoming unmistakable, Ben felt his pecs beginning to move with each of his sister's thrusts. He knew he wasn't built like a body builder, that his pecs weren't super taut, but the movement he was feeling was just too much. When he reached with one hand to feel his pecs, he got yet another shock: he wasn't touching pecs, but small breasts. As Lily kept hammering into him, he felt his new breasts growing and growing until they were slapping against each other in sync with Lily.

Dropping his face on the mattress, he grabbed his new breasts with both hands and cried out in pleasure. He had always liked to play with large breasts, but squeezing his own overwhelmed him. "Fucking hell!" cried Lily behind him as she climaxed again. Ben felt her sperm filling his bowels, then felt its magic radiating all over his body. At once his breasts, which might have been C cups, magically grew into much larger E or even F cups.

Lily pounded him hard all through her climax. Ben wasn't feeling any pain now, just overwhelming pleasure. When Lily pulled out, Ben felt his asshole gaping, letting some of her sperm leak out. When he turned around and looked at Lily, he still recognized his sister despite the transformation. She was smiling naughtily, but even after everything that had happened, her head was slightly lowered as if she was shy.

Ben knelt in front of her and hugged her hard. At the same time he felt their cocks intertwine against one another. Without looking he could feel that his average sized cock was now much longer and that both cocks were now trapped between their four large breasts. He leaned forward and kissed Lily on the lips, driven by a hunger and passion he had rarely felt before. Sliding his hands down her back, he grabbed her ass and cried out in pleasure and he enjoyed her firm flesh.

He was only barely surprised when he felt a thin but strong tail growing from the top of her crack. Following its length with his fingers, her reached the end and felt a thicker puff of very fine and very soft hairs. Ben only laughed, way past the point where he had given up on explaining what was happening.

He pulled his sister against him and let himself fall on the bed. She straddled him and rose up until she could guide his cock into her pussy. Ben laughed again as he felt his ten inch cock penetrating her pussy with ease. When Lily started to ride him, Ben was hypnotized by her huge cock bouncing with her, slapping his belly with each bounce. Lily reached for his breasts and fondled them, a large smile on her lips. "Hold your breasts like this..." she suddenly said.

When he did, Ben saw her pushing her gigantic cock down between them. So even as she was rocking his cock, she was fucking his breasts. His mind overloaded by all he was seeing and feeling, Ben abandoned himself to the pleasure. Feeling her cock fucking his breasts was an experience he hadn't fantasized about because it was so crazy. But he was living it right now, feeling his pleasure growing and growing.

As much as he liked this position, he had another idea. He pushed his sister off of him and turned around on the bed, his head off the edge, thrown backwards. "Fuck my throat again!" he said. Lily grinned, then knelt right in front of him on the floor, her cock at the perfect height. Knowing it was physically impossible for him to take that monster cock into his throat, Ben nonetheless opened his mouth and shivered when he tasted his sister's cock again.

Much smoother than the first time, Ben experienced a second deepthroat as Lily buried herself to the hilt. He felt his insides being reorganized again as twelve inches of magical cock speared through him. And suddenly, things got even more intense. He felt his sister taking his own huge cock into her mouth and, after a second of repositioning, she took all of his length into her throat as well.

Like a well oiled machine, Lily and Ben began deepthroating each other, taking their respective cocks as deep as was possible, giving each other more pleasure than either had thought possible before. Ben felt her breasts on his as they moved, and soon felt some magical milk coming out of them, making them slick against each other. Reaching up to grab her ass, Ben pulled Lily as hard as he could into him, feeling her pussy pressed against his nose.

And that's how they both came, filling each other with more sperm than was physically possible. Luckily for them neither of them could scream, but they were both filled with a mind altering wave of pleasure that lasted for long minutes. Eventually, Lily pulled back and released his cock before pulling out of Ben's mouth.

Ben moved higher on the bed, resting his head on the pillow. He opened his arms and felt deep, powerful love fill him as Lily lay against him, her face buried into his neck. He could see his own breasts pressed against hers, see her glowing skin shine light in the room and her long, thin tail whipping around behind her. It was utter insanity, but he was the happiest man in the world.

The following morning, Ben woke up on his sofa bed, all stiff and aching. Reflexively he reached for his breasts, but found nothing but his ordinary pecs. Lower, he felt for his cock and found it, also, no longer than usual. Standing up, he looked at himself and couldn't find anything different than usual. His throat and asshole weren't sore at all. "Shit! Was this all a fucking dream?" he asked himself. He looked around for any trace of what had happened, but didn't find any. Of course, most of it had happened in Lily's room.

He got out of his room and headed for the kitchen. He was all alone, everybody was still sleeping. The utter normality of this morning was a deep shock for Ben as he ate his cereal in silence. "A dream?" he thought. Fuck! "Of course it was a dream!" he told himself. "Magic isn't real, you big dummy!" But it had felt so fucking real! "Real?" he laughed at himself. "How can a girl with a twelve inch cock and a guy growing F cup breasts feel real?" He shook his head, both relieved and slightly disheartened.

After finishing his bowl he remained sitting there, trying to understand what could have triggered such a power and crazy dream! Had Lily even come to his room last night? That first time when she talked about the party? Was that even real? Suddenly he heard footsteps coming from downstairs, and Lily appeared at the top of the stairs. She was still groggy from sleep, and went to the fridge, saying "Good morning" as she walked next to him. Her small breasts looked perfectly normal under the fabric.

He stared at her from behind. She was still wearing a tank top, another one this time, and it barely covered her ass. Her slim and small ass, just like her breasts were. Small. Feminine. No hint of a cock. When she leaned forward and he saw her pussy peaking between her cheeks, it confirmed that there wasn't anything magical there. Well, his sister's pussy was certainly nice and it was certainly arousing him this morning, but—

And then it happened. Lily turned her head to look at him. He saw her smile naughtily and suddenly her eyes glowed blue-green, coloring the entire fridge. When he saw her fine tail falling down from between her buttocks, under the tank top, then whipping around a few times, Ben smiled. It hadn't been a dream, and he knew his life was about to change for the best, for the extraordinary. For the magical.