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Thunderkittens: Innocence	By : GeorgeGlass Category: +S through Z > Thundercats Views: 13255 -:- Recommendations : 2 -:- Currently Reading : 1
Disclaimer: I do not own the rights to ThunderCats or its characters, yet here I am making them do naughty things. Bad, bad me. And I'm doing it without financial compensation, no less.

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Thunderkittens: Innocence
by George Glass
Summary: A frigid night forces Wilykit and Wilykat into the same bed—and ignites their passions. Based on the original, 1980s ThunderCats series. (furry, incest, twins, twincest, young_teen, ThunderCats, frot)
Disclaimer: I do not own the rights to ThunderCats or its characters, yet here I am making them do naughty things. Bad, bad me. And I’m doing it without financial compensation, no less.
Warning 1: This story has adult content and should not be read by persons under the age of 18. If you are under 18 and choose to read it anyway, please inform your parents that I have little money and that suing me would be a monstrous waste of their time.
Warning 2: Contains underage sex, incest, and artificial flavors.
Finally, a note: I actually wrote this story years ago, but for whatever reason, it never occurred to me to post it here until now.
***
“It’s f-freezing in here!” Wilykit shouted from her bed. Her voice was muffled by the blankets that she had pulled completely over her head.
“T-t-tell me about it,” Wilykat stammered, forcing the words through his chattering teeth as he pulled his own covers tighter around himself. “P-Panthro says he’ll have the g-generator fixed in an-n-nother half-hour or so.”
Kit pulled lifted the covers just enough to peek out, surveying the distance between her own bed and her brother’s. “This is ridiculous,” she exclaimed. “I’m c-coming over there. We’ll be warmer t-t-together than alone.”
“Don’t freeze solid on your way over,” Kat said.
“I’ll t-try not to.”
Suddenly, Wilykit became a blurry wheel of red hair and blue blankets that raced across the floor to land in a sprawl next to Wilykat’s bed. With speed that only a twelve-year-old on a ice-cold floor can possess, Kit leaped up, yanked up one corner of Kat’s covers (eliciting an involuntary yelp from the boy as cold air rushed in), and shoved herself under them. She flipped over and grabbed Wilykat as hard as she could, wrapping her arms and legs around his body in her desperation to get warm. Kat grabbed his sister with equal fierceness and there they lay, a shivering ball of Thunderkitten under two sets of blankets. Their teeth chattered in each other’s ears.
“Great Jaga, you’re so warm,” Kit said, shifting her body to grip Kat’s even more tightly. “It’s like you swallowed a fire rock or something.”
“That’s not how it feels to me,” Kat said shakily. “I feel like I’M freezing and YOU’RE the warm one.”
“Just hold me closer,” Kit said urgently.
The twins wriggled and shifted, trying maximize the contact between their bodies. It seemed impossible to find a position that would enable them to share even one more degree of body heat. Then Wilykat had an idea.
“This would work better without our clothes on,” he said.
“It’s not like they’re doing us any good now, anyway,” Kit replied. “They’re just holding the cold in.”
Being nude was no big deal to either of them; they had rarely worn clothes when they were living on Thundera, whose climate was friendlier than Third Earth’s. Nakedness wasn’t terribly embarrassing when you were covered in fur.
The twins released each other and carefully slithered out of their garments, trying not to open any tiny gap in the blankets that would expose their bodies to the cold. Soon, their clothes lay in a loose pile on the floor next to the bed.
The twins hurriedly scootched their bodies back together. They soon found, however, that grasping each other front-to-front was awkward; each twin ended up lying on top of the other’s arm. “I don’t think we can last all night like this,” Wilykat said. “My arm will fall asleep so badly that it might never wake up.”
“Here,” Wilykit said, turning over and pushing her back against Kat’s front. “Put your arm around me.”
Wilykat obliged, grasping Kit’s middle and pulling her tight against him. She pushed herself backwards to get closer and inadvertently thrust her bottom against Kat’s groin. Kat suddenly had a funny feeling in his stomach. He couldn’t tell if it was a good feeling or a bad one, but it did seem slightly familiar.
He tried to ignore it and go to sleep. He was tired from shivering and being awake so late, and he had a ton of chores to do in the morning. But he found that it was hard to think about anything other than Wilykit right now. For one thing, her hair was tickling his nose.
Wilykat shifted his body a little to get his face out of Wilykit’s bushy hair, and his hand slipped upwards on Kit’s torso. That was when he felt it.
Unlike Wilykit’s firm stomach, the place his hand had just found was incredibly soft. Not like a pillow or a sponge, but soft the way only something alive could be soft. It was slightly curved, and there was something harder, like a marble, jutting up from the middle of it.
The funny feeing in Wilykat’s stomach grew stronger. Without thinking, Wilykat found himself gently squeezing the warm roundness under his hand.
“Hey!” Kit exclaimed.
Kat yanked his hand away like he’d just touched the burner on Snarf’s stove.
“What are you doing?” Kit demanded.
“Sorry,” Kat said. “I didn’t…what, what IS that?” he blurted.
“It’s my…breast,” Kit explained awkwardly. “Cheetara told me that’s what they’re called. She said girls get them when they get to a certain age.”
“Those bumps on your chest?” Kat asked, trying to process this new information. He suddenly recognized the funny feeling he’d felt in his stomach a minute earlier; it was from the other day when he had glanced at Cheetara’s chest and noticed her breasts -- it was good to know the word for them -- stretching the front of her costume.
“Yes,” Kit said. “You must have seen them before.”
“I guess I noticed them the other morning when you were getting dressed,” Wilykat said. “But I didn’t want to say anything ‘cause I didn’t know what they were, and…well, I didn’t want to seem nosy, or stupid. What are they for?”
“Cheetara said they’re for feeding babies. Then she said she had to go do a maintenance check on the Thundertank, and she left.”
“I don’t get it.”
“Me neither. Panthro had just checked the tank that morning.”
“No, I mean the baby-feeding thing.”
“I don’t get it either. I don’t even HAVE a baby. Neither does Cheetara.”
“What’s that in the middle of it? That hard thing?”
“That’s my, my nipple,” Kit said. “Don’t you have them, too? I thought everybody had them.”
“Yeah, but mine aren’t anywhere near that big,” Kat replied. “And they don’t get all hard like that.”
“They do it when it’s cold,” Kit said. “And sometimes they do it…I’m not sure why. I don’t like it; they stick out from my fur. If I weren’t wearing clothes when it happened, everyone would see them.”
The thought of seeing Kit’s nipples made Kat’s stomach do a back flip. The feeling dropped lower, into his groin, and Kat could feel his penis starting to stiffen. Lately, it had begun doing that now and then; he didn’t know why.
“What are you doing down there?” Kit asked. “Is that your finger on my butt?”
“No, it’s…” Kat started.
Kit turned over and looked at Kat. They could just see each other’s eyes in the darkness. “What is it? Is it your, your penis?” she asked.
“Yeah,” Kat said, averting his eyes.
“Why is it sticking out like that?”
Kat was too embarrassed to respond.
“It’s okay,” Kit said. “I won’t tell anyone. I told you about my breasts, right?”
“A-actually, I think that’s why it’s sticking out,” Kat said. “I think touching your…breast…sort of woke it up.”
“Wow,” Kit exclaimed. “I mean, I knew you had one, ‘cause you’re a boy, but…I didn’t know they could move like that. Is it getting harder? It’s kind of poking me in the butt.”
“Uh huh,” Wilykat said. He was quiet for a moment. Then he said, “Kit, can I…?” His voice trailed off, shy and awkward.
“What?” Wilykit asked.
“Can I touch your breast again?”
Kit hesitated for a few seconds, then said, “A-all right. Just…be really gentle, okay? They hurt a little.”
“Okay.”
Wilykit lay down on her back with her head on the pillow. She was looking up at Wilykat; he could just see her eyes glinting in the feeble light that seeped through the blankets. Kat lay on his side, propped up on one elbow so that his head and shoulder tented the blankets. Mostly blind, he placed his hand on Wilykit’s stomach and slowly slid it upwards. Wilykit’s small breast barely rose above her chest, but the moment Wilykat’s fingers touched it, he could feel the distinctive softness of it. It was like nothing he’d ever felt in his life.
With the lightest touch he could manage, Kat continued to slide his hand upward until it gently cupped Kit’s breast. Again he marveled at how soft and impossibly warm it was. Her nipple protruded up against the center of his palm, as stiff and hard as the rest of her breast was soft. Very gently, he stroked Kit’s breast with the tips of his fingers, each one tracing a path through Kit’s silky fur and brushing against her hard nipple on its way downward.
“Ohhhh,” Kit moaned, almost too softly to hear.
Wilykat stroked the backs of his fingers upward over Kit’s breast, then took it in his hand and squeezed it gently. He felt Kit’s hand against his own chest, sliding up his neck and around behind his head. Her fingers wound themselves in his hair.
“Oh, Kat,” Wilykit murmured. Wilykat felt her pulling his head downward and saw that she was lifting hers up to meet him. She tilted her head to the side and gently pressed her lips against his.
Surprised, Kat pulled his head back sharply. “W-what are you doing?” he whispered.
“I’m sorry,” Kit whispered back. Her eyes were huge in the dim light. “I saw Cheetara and Tigra do that once when they didn’t know I was watching. And the way you were…touching me, I suddenly wanted to do it with you.” She blinked. “Was- was it bad?”
“No,” Kat said. “No. I just…I didn’t know what you were doing.”
“Can we try it again?” Kit said. “Please?”
“All right,” Wilykat said.
They each leaned forward until their lips met tentatively. Like her breast, Kit’s lips seemed impossibly soft to Kat. He kissed her gently, beginning to lose himself in the feel of her. Over and over, their lips made contact, cautiously touching, tasting, exploring. Kat’s fingers touched Kit’s face, brushed across her ears, and entwined themselves in her hair. Kit wrapped her arms around Kat, her hands stroking his back, traveling everywhere, mapping every inch. Kat only barely noticed the sound of the generator coming back on, then promptly forgot it in the heat of his need for Kit.
Their kisses grew longer, firmer, more insistent. Kit fell back and pulled Kat down on top of her, clasping her thighs around his hips. Kat could feel the tip of her tongue probing his lips; he opened his mouth to it and let his own tongue enter her mouth at the same time. Their tongues massaged each other, gently at first, then with increasing urgency.
Kat returned his hand to Wilykit’s breast. He held it for a moment, then began to knead it, a little more firmly than before. A slight squeak escaped from Kit’s throat, but she didn’t stop or pull away; instead, she kissed Kat harder, so Kat knew it wasn’t pain she was feeling. Encouraged, Kat grasped Kit’s nipple and tugged it gently. Kit squeaked louder, and her arms gripped Wilykat with surprising strength as she ground her body against his. After several moments of almost frantic kissing and fondling, Wilykit pulled away from Kat and fell back onto the mattress, breathing hard. Kat, too, was nearly panting. His body felt incredibly warm, and not only because the generator had started up again.
“Kat…please…” she gasped. The tone of her voice was almost desperate.
“What is it?” Kat asked. He could barely speak, or even think. His mind was submerged in an ocean of feelings and needs that he couldn’t understand and was only barely able to control.
“I…I don’t know,” Kit breathed. “If we don’t stop, I feel like I’m going to explode, or go crazy, or something.” Her hands gripped Kat’s forearms as though she were afraid to let go.
“Uh-huh,” Wilykat gasped. “It’s, it’s like there’s this feeling...building up in me, and if I don’t let it out…”
“I know! But I don’t want to stop, either,” Kit said. “I feel like I never want to stop kissing you and touching you and feeling your hands all over me, but at the same time, I want…I don’t know! There’s something more I want to do, but I don’t know what it is! I can’t stand it!”
Kit looked like she might scream, or cry, or pass out. Mindlessly, Wilykat moved closer to her, leaning his head against hers and rubbing her leg as he sometimes did when he was trying to comfort her.
As he ran his hand up and down her leg, however, he felt something very strange. Heat was radiating from somewhere above Kit’s thigh, between her legs. As Wilykat’s hand drew nearer to the source of the warmth, Kit’s eyes closed and she sucked in a breath.
Slowly, Kat moved his hand even higher up Kit’s thigh. Kit’s hand gripped Wilykat’s knee, and he stopped.
Hoarsely, Kit said, “Kat?”
“Yes?” Kat whispered.
“Keep- keep going.”
Kat was so aroused he could barely think, yet he still felt curious about why Wilykit would be so hot between her legs. He moved his hand higher and found an incredibly warm, wet place between Kit’s thighs. Kit gasped.
In all their years growing up together, Kat had barely even seen Kit’s vagina, except for the few times when they had bathed together as small children; the water had matted Kit’s fur down well enough to show the outline of her sex. She had told him then that it was called a vagina, and that was about all he had ever learned about it.
Now he had his hand on it. It was wet and very, very hot, but it was also soft and nice to touch. It struck Kat that all the parts of his sister he had never touched before -- her breasts, her lips, her vagina -- were her softest places.
Is this why boys like girls? Kat wondered. Because they feel so soft and good?
Wilykat felt the very opposite of soft. His body was tense, and his penis was so hard it almost hurt. He could feel it pulsing with his heartbeat as it lay against his inner thigh.
Kat put his hand over Kit’s vagina, holding her little mound in his palm. Kit lay back and opened her legs wider to give Kat better access; Kit lay down on his side next to her, never moving his hand off of her sex. Unsure of how to proceed, Wilykat simply moved his hand in slow circles, caressing the whole mound. Wilykit grasped Kat’s thigh and held it, squeezing it each time Kat reached the peak of each circular motion.
Wilykat lost all track of time as he massaged Kit’s sex. He was mesmerized; her vagina didn’t feel like anything he had ever touched before, soft and wet and so very, very warm. His middle finger lay over the softest and wettest part -- fleshy folds that stretched and moved as he circled his hand. He didn’t know what they were for, exactly, but they were fascinating.
As Wilykat continued rubbing his sister’s vagina, he felt her hand -- the one that had been squeezing his leg -- begin to move upwards. Impossibly, Wilykat’s penis seemed to grow even harder as it lay heavily against the inside of his thigh. Kit’s fingers traveled gently over his fur, moving closer and closer to Kat’s groin until the girl’s fingertips brushed over the head of Wilykat’s penis. Kat gasped and gripped Wilykit’s mound harder. As a result, Wilykat’s middle finger, which lay directly on top of the folds of Kit’s vagina, slipped in between them, and then it was Kit’s turn to gasp.
Kat was overwhelmed with sensations. Kit was exploring his penis with her fingertips, moving them around his head and shaft with a feather-light touch that was driving Wilykat absolutely crazy. At the same time, his finger was exploring the hot, wet, slick interior of Kit’s vagina, which was incredibly fascinating. Kat had been in battles and had all kinds of adventures in his young life, yet this was the most exciting thing he had ever done.
Kat moved his finger slowly up and down between Kit’s folds, probing. Kit seemed to be breathing in time with his movements. She wrapped her hand around Kat’s penis and began squeezing it gently in time with Kat’s stroking of her vagina. They did this for a little more than a minute, and then Kat felt Kit’s lips brush against his ear.
“I’ve got an idea,” she said in a husky whisper that made the fur on Wilykat’s neck stand up. “Lie down.”
Kat lay on his back. He felt Kit’s leg go over his waist as she climbed on top of him. She straddled his stomach, and then moved downward so that his hips were between her thighs. His penis jutted up behind her, the shaft pressing lengthwise against the cleft of her bottom. Wilykit lifted herself up, and Kat’s penis fell forward against his body. Then Kit lowered herself back down.
Oh, wow, Kat thought numbly. Oh, yes.
Kit’s warm, wet vagina was pressing down against the underside of Kat’s shaft. It felt incredibly good, and not just because of the thrilling sensations that ran from the head of his penis down through his balls and up through his entire body; it was because, somehow, Kit was doing exactly what he had wanted her to do, even though he hadn’t known that he had wanted it until she had done it. It felt…right.
Subtly, Kit began to move her hips forward and back. Kat’s eyes widened.
“Oh, Kit…” he whispered.
Kit’s eyes were closed, her lips slightly parted. She moved her hips slowly, undulating them against Kat’s body and taking a tiny, gasping breath with each movement. Kat reached up with both hands and grasped Kit’s breasts firmly. The girl gasped and ground her sex a little harder against Kat’s shaft as he began to knead her firm little mounds.
“Kat,” she whimpered. “Don’t stop, don’t stop, oh please, not ever…” She babbled quietly, incoherently, but somehow it only made Kat more excited, causing him to thrust his hips upward to grind his shaft even harder against her. The lips of her sex were open, and the head of Kat’s penis was sliding back and forth between them, pressing harder and harder against her. Their bodies moved together, faster and faster, Kat pushing harder against Kit as Kit bucked her hips more and more vigorously. Kat grasped her nipples in his fingers and suddenly Kit was out of control, grinding into him fiercely, thrashing, arching her back and pushing her face up into the blankets to muffle the sound as she unleashed a high scream of sheer, agonizing pleasure. And then the world was nothing but the sound and smell and feel of Kit and the lightning that shot from that place where their sexes met all the way up through Kat’s body as he grabbed her hips and squeezed tight and exploded. He heard a scream join Kit’s and realized only faintly that it was his as ecstasy seized and threw and pounded him like a violent surf. The moment went on and on, sweet and unbearable.
Finally, Kit collapsed on top of him. Kat felt himself go slack, pressed between her body and the bed. For minutes they simply lay there, breathing.
Finally, Wilykit rolled off of Kat and lay beside him, holding his hand.
“What was…what did we…?” she gasped, exhausted.
“I don’t know,” Kat answered, dazed. “It was…I’ve never felt…”
“Me neither,” Kit said. “It was so…good.”
“Really, really good,” Kat said, almost giggling.
He felt Kit touch his face, stroking his cheek with the backs of her fingers. “I’m so tired,” she said. “But in a really nice way.”
“Oh, yeah,” Kat agreed. His eyelids were beginning to feel heavy. He moved a little closer to Kit, and she turned on her side and put her head on his shoulder.
“See you in the morning, Kit,” Wilykat said, putting one arm around her. His other hand stroked her hair once, gently, before moving down to rest on her side.
“I’ll be here,” he heard her answer. He had never been so relaxed; he could feel himself starting to drift off.
“Kat?” Kit whispered sleepily.
“Mmm?” Kat murmured.
“I love you.”
“I love you too, Kit.”
And then the world faded away, and there was nothing left but peace.
- 1
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Thunderkittens: Innocence