So this is what you've been doing (Stickyfun x sinfulrook)

Karin hissed when Ichigo's finger left her pussy, leaving her body achingly empty, before he walked across the room to his bed, stripping and revealing that huge cock of his, just laying down as it pointed at the ceiling, enticing her as it throbbed. Damn him....not only was he making her say such things but he wanted her to do all the work too? Well...she'd show him...she was going to milk him so much he'd be too exhausted to move. "Fine, but remember you asked for it" Karin growled, then quickly removed her own clothing, pulling her shirt the rest of the way off before tugging her shorts down quickly, her plentiful breasts bouncing as she walked across the room towards her older brother.
She quickly got up onto the bed, moving to stand above Ichigo's cock, her pussy juices dripping down onto the head. "Just remember....warn me before you cum so I can get off....." They'd need to buy some condoms or something if they were going to keep doing this...but right now Karin didn't have the patience for Ichigo to go out and buy them, she needed a cock right here right now, and if he tried to leave she'd pin him to the ground and fuck him anyway. Her body shivering, Karin started to lower herself down, groaning as the tip of Ichigo's cock made contact with her pussy lips, before she gasped as the head slipped inside. "Nnn....." Karin closed her eyes, her body shaking as she started to lower herself down. Damn...it was so big....bigger than she remembered. Her legs were shaking so much it was hard to keep her balance.
 
Ichigo watched his sister strip down and watched as her perky and full breasts bounced while she walked. When she finally stood up in front of him and her juices dripped down to his cock, his cock twitched in excitement and he secretly made it a bit larger for her. He nodded to her when she asked him to warn her when he was about to cum. He then watched as she slid herself down onto his cock, watching her legs and entire body tremble as she just pushed the head of it inside herself. He gently put his hands on her sides and helped her stay up, supporting her so she wouldn't fall off the bed or impale herself instantly onto his cock.

"Keep going, Karin, you only got the tip of it inside you." He encouraged her to go further, noticing that she was rather frustrated from having him force her to tell him that she wanted it. He helped her lower herself more, feeling how easily he was sliding inside her from how wet she was, and yet it was still so extremely tight around his cock. "Nnnnn..." He groaned as she kept going down slowly, feeling his cock being squeezed really hard inside her dripping cunt.
 
Karin shivered as he felt Ichigo grasping her, seemingly helping her to remain steady, then started to push herself down a little more on his cock, panting heavily as she felt Ichigo's cock stretching her out once again, though he felt even bigger than before....maybe it was just because she wasn't fighting against it this time. "Ah...nnh...." She groaned as she got about half of Ichigo's cock inside of her body, then stopped for a moment to let herself get used to it. Well....that and to just tease him as her juices ran down the rest of his exposed shaft. "F-fuck....." She moved her hands, placing them against Ichigo's chest to further support herself, before she started moving again, her legs shifting so that she had her knees on either side of Ichigo's body instead of her feet.

"Ahh..." A few moments later, their hips met, Ichigo's entire cock buried in Karin's body, the tip of his cock pressing a little against her cervix as Ichigo filled her up completely. Karin was panting heavily, every breath causing her plentiful breasts to jiggle on her chest, her face red as her body glistened with sweat simply from the effort of taking him inside of her.
 
Ichigo watched his sister slowly inch her way down onto his entire cock, helping her the entire time until their hips met. Once she was sitting in his lap with his cock fully inside her, he let go of her sides and slowly moved his hands up to her breasts, gently grabbing them while she breathed heavily. "My, so tired already Karin, I'm surprised you didn't cum yet." He told her with a grin and massaged her breasts very slowly, enjoying the softness and jigglyness of them. He felt more spiritual pressure from her breasts with his hands this time, and it gave him an idea. Since she must not know that she's using that spiritual pressure to make her chest bigger, he might use some of his own to help her get bigger.

He slowly began to move his hips forward and back, grinding against her hips with his. "I got a surprise for you Karin." He said with a small smile and continued to slowly massage her breasts. I hope she likes this. Ichigo thought to himself, and before Karin could reply, he sent some spiritual pressure from his hands to her breasts, making them slowly grow from a 36C cup into a 36D cup. As he finished making them bigger, he looked up at her face, waiting for her reaction.
 
Karin felt an odd tingling in her breasts at first, not having heard Ichigo mention some kind of surprise. She just dismissed the tingling as more pleasure from having Ichigo's cock buried inside of her. Moments later though, as she looked down at Ichigo, she gasped as she felt an increasing weight in her chest, eyes widening as she watched her breasts swelling slowly in Ichigo's hands. "Wh-what..what....what's going on?!" Karin had a slight panic to her voice, but the look on Ichigo's face....he knew what was going on....she could tell he knew....no...not just knew...he had caused this somehow! But how? "I-Ichigo...." She panted as she started to lift up slightly off of his cock, intending to get herself all the way off, but when she got about three quarters of the way off Ichigo's cock she squealed in pleasure. Ichigo had squeezed her breasts, which had become somewhat more sensitive as well as bigger. The sudden surge of pleasure caused her body to slide slowly back down Ichigo's cock until their hips met once again, Karin just sitting there and panting heavily, already exhausted.
 
Ichigo smiled a bit as she looked down at his face, still massaging her breasts some more. He watched her slowly rise up on his cock, but then as she began to move back down slowly, he squeezed her breasts a little bit harder, enjoying the new size that he made her. "Surprise, Karin." He said once their hips met again. He began to slowly grind his hips back and forth against hers, his cock moving around inside her a little bit. "Do you like your new bigger tits?" He asked her, curious to know if she would be willing to make her ass a little bit larger too, since he could make anything grow on her or him. "Do you want them even bigger? Or maybe a bigger cock to sit on?" He asked her with a grin, leaning down to lick her breasts a little bit.
 
Karin continued to stare in disbelief at her slightly enlarged breasts, a whole cup size bigger than they already had been....not that they had needed Ichigo's help, another month or two and they'd likely have been that size anyway. "A-ah!" She cried out in pleasure as Ichigo's cock seemed to move around inside of her, leaving her unable to do much more than whimper. Her head seemed to move in a nodding motion, though it was impossible to tell just what she was referring to. She might have been nodding for him to make her breasts bigger, might have been nodding for him to make his cock bigger, or it might not have been a nod at all. Karin was just so overwhelmed with pleasure though she was finding it difficult to form any kind of coherent response.
 
Ichigo looked at her barely nod, but he wasn't sure at what she was nodding, so he let go of her breasts and put his hands on her hips, stopping his hips from moving back and forth and waiting for her to calm down a little bit. He knew it must've felt really good, especially for her second time being fucked, especially by a large cock like his. "Karin, I want you to try and calm down a little bit." He told her softly and rubbed her sides gently. "When you can finally speak normally and breathe normally, tell me what you want me to do." He said and then watched her just sitting there in his lap, his cock buried deep inside her. The reason he did this was so that she could get used to the pleasure and be able to breathe and speak easily in the future when they did this.
 
Karin took a few moments to get her breath back, adjusting to the sensation of Ichigo's cock inside of her. It was definately bigger than last time, not to mention this position meant it was pushing even deeper into her than it would have before, pressing against her most sensitive spots. Hell, the tip was prodding at her cervix, any deeper and Ichigo's cock would be starting to push up into her womb. "M-more..." Karin panted as she supported herself with her hands on Ichigo's chest. "I want....more....b-bigger....everything...bigger..." Karin growled slightly, determined to show she was readying to take control of this situation. She was going to be calling the shots, not her older brother.
 
Ichigo just rubbed her sides while she was trying to catch her breath and compose herself a little bit. When she finally said more, he looked at her, listening to her growling and stuttering for more. He grinned at his sister when she was finished, slowly leaning in to kiss her lips softly, letting the kiss linger for a while. Meanwhile, his hands slid down to her ass, making it a little larger and bouncier, feeling the growth in his lap on his thighs. He then slowly slid his hands up her sides and onto her breasts, still kissing her lips, his tongue slipping into her mouth now, as his hands gently squeezed her breasts and made her breasts grow another full cup size. Once that was done, he pulled away from her lips and held her hips now. "You better brace yourself for this one, Karin." Ichigo told her and then grew his cock and balls larger inside her, about two inches longer and just a bit thicker.
 
Karin shivered as Ichigo's fingers ran up her sides, his fingertips feeling like they were seding jolts of electricity through her skin, before his hands settled on her ass. Before she could tell him to hurry the fuck up, she felt his lips suddenly on her own. She sat in shock for a moment, then slowly began to return the kiss, groaning as her ass began to swell slightly in his hands, before they were at her breasts, his tongue in her mouth wrestling with her own. She let out a loud, muffled moan of pleasure as her breasts grew out to a 36E in size, large and heavy on her chest, the slightest movement causing them to bounce. "Nnngh!" She grunted as he broke the kiss, then just nodded. "Ah!" Her eyes widened as she felt his cock growing, starting to push up, forcing its way past her cervix, the entire head of Ichigo's cock now buried snuggly inside of her womb, the thickness causing an ever so slight bulge in Karin's stomach. "F-fuck! So...so big....so good"
 
Ichigo enjoyed seeing his little sister bask in ecstasy. "If it's so good, ride it." He told her with a grin and moved one hand down to give her new ass a smack, letting the sound echo through his room. It sounded so wonderful, he wondered what it would sound like if her ass smacked down onto his lap. He could feel his cock being squeezed more and more while she just sat still, his moans not coming out of his mouth one bit. "Come on, Karin, I'll help you." He said to her and moved his hands down to her sides, slowly starting to help her lift her body up, helping her slide up on his enormous shaft. It felt so good to fuck his sister like this, or at least have her attempt to ride him, and he wanted more, much more.
 
Karin squealed as he slapped her ass, the growth also increasing her sensitivty as it had in her breasts, the girl letting out a loud, unrestrained moan of pleasure. "Nnngh!" She panted, then started to try and lift herself, just as Ichigo grasped her sides, starting to help lift her up. Slowly Ichigo's cock withdrew from her womb, Karin pushing herself up with her arms and legs until she was about halfway off of Ichigo's cock, then she suddenly slammed back down onto him hard, screaming out in pleasure, her breasts bouncing from the rapid motion. "NNGH! FUCK!" Karin gritted her teeth, then immediately started to lift herself up again, though the timing of her movements was agonizingly slow.
 
Ichigo was almost staring at her breasts while she was lifting herself up, but then suddenly watched them fall down along with the rest of her body, watching them shake and jiggle when she slammed herself down onto his thick cock. When she fell down, he let out a really loud moan of pleasure, feeling the head of his cock penetrating past her cervix once more. "Ahhhhh shit!" Was what he moaned out, then looked at her trying to go up again, his hands still holding her sides and helping her slide up on his cock. "This feels so good, Karin!" He told her while she was going up, wanting her to slam down like that again. He enjoyed watching her breasts bounce as well as feeling her ass smack down into his lap.
 
"O-ooooh!" Karin groaned loudly as she started to lift herself up once more, the outline of Ichigo's cock just visible in her belly thanks to his increased size. "S-so big....so good...so full...!" Karin managed to lift herself just a little more off of her brothers cock this time, then rammed herself back down once more, the house filled with her scream of pleasure, her body tightening up around Ichigo as she almost came there and then. "AHH!" Her breasts were boucing wildly from even slight movements, so the rapid slamming was causing them to bounce rapidly, almost hypnotically infront of Ichigo's face, whilst the girl just started to lift herself up her big brothers cock once more.
 
Ichigo loved this, he was moaning along with his sister since he hasn't had this much fun for almost over a year now. As she lifted herself up again, he watched her trembling, his hands now gripping her sides a little more firmly and helping her go up more. He could feel the strain on his arms already, and he was going to help her reach her orgasm. He was getting really close from all this tight and agonizingly slow movement he was getting from her. "Nnnn! Karin! Don't stop!" He told her and then watched her slam down again, letting out another lust-filled and extremely loud moan alongside her scream. One more slam down like that and he was going to cum, there was no denying it, and he forgot completely that he had to warn her when he was going to cum.
 
Hearing Ichigo moan like that, hearing him call out her name made Karin feel even more turned on, if that were possible. Oh god she loved her brothers cock! She wanted it over and over again! Not that she would ever tell him that of course....as far as he was to be aware she was...reluctant...to do this. At best she'd tell Ichigo she was just using him like a sex toy or something to satisfy herself. "Nnngh!" Karin began to lift herself up one more time, feeling her own body trembling. She knew this next thrust would bring her to orgasm, and the way Ichigo's cock was twitching, it felt just like before he had pulled it out last time. Still, she was sure he would remember to pull her off his cock when he was about to cum, or at least warn her so she could roll over off of him. "Ah...ah....ah..." Karin held herself in the air for a few moments, most of Ichigo's cock now out of her pussy, the shaft glistening with her juices. Then, without warning she rammed herself back down, taking the entirity back inside of her, burying Ichigo's cock inside of her womb as the girl howled in orgasm, her pussy tightening up so much that it would've been difficult for Ichigo to remove himself even if he wanted to.
 
Ichigo was a little breathless now as she was lifting herself up. He noticed her almost standing completely up on her knees, only the head of his cock inside her. He finally let go of her sides and then felt her dropping back down on his cock, feeling her swallow up his entire cock all the way down to the hilt. As she howled in her orgasm, he joined in with her, tilting his head back and moaning at the top of his lungs. As her pussy squeezed his giant cock as hard as she possibly could, he could feel his hot seed shooting straight into her womb. There was so much cum gushing out of his cock inside her, plus she was milking him for every last drop of it. He could feel her stomach swell up against his stomach from the amount of cum. After they were both done cumming, he just sat there, his arms at his sides, limp on the bed. He couldn't do anything, and the slightest movement from her would make him fall backwards on the bed.
 
Karin was so caught up her orgasm she didn't notice the tell-tale twitching of Ichigo's cock, though when she felt the first hot spurt of fluid her eyes snapped open wide. "N-NN!" She cried out when she felt just how much it was, Ichigo's thick cock creating a seal and trapping his cum inside of her womb, leaving all that fluid nowhere to go. "N-n-noooooo" Karin more moaned out the words than said them, gasping as her stomach started to bulge outwards from all of Ichigo's cum, swelling slowly and steadily until the boy was finished, leaving Karin with a round belly and the appearance of being 5 or 6 months pregnant already. "N-no...you....you came so much....in...inside me...." Karin was panting, unable to move as she remained sat on Ichigo's cock, her swollen breasts and belly jiggling as her body shook and came down from the intense orgasm that the neighbours were sure to have heard.
 
Ichigo calmed down after a short while, his breathing back to normal, but his cock still fully erect and rock solid. He could feel the cum inside her trying to escape from her womb, but his cock wouldn't let any of it pass by, not even a single drop. "D-Don't worry about it, Karin...." He told her with a whisper, trying to figure a way out of pulling her off his cock for now. He knew that the cum wouldn't impregnate her, because almost all of it was artificial. He enjoyed cumming so much, especially inside her, and he wanted to fuck her more, see if she would be able to go on for a longer period of time. "More importantly, did you like all of it? The big breasts and ass, and the huge cock? Did you like having it all?" He asked her with a grin, wondering if she wanted to go for even more.
 
"Wh-what do you mean don't worry about it?" Karin growled slightly, shifting herself ever so slightly, but she didn't dare move too much, certainly not try to pull herself off of him, the cum would go absolutely everywhere. She blinked as she felt his still hard cock inside of her, even twitching slightly. "Ah...you...you want more....? S-seriously?" Karin wasn't sure her body could take another round without being emptied out first but.....god she did want it too....and she didn't want to get off of his cock. "Y-yeah I....I like it....I....if you want more though....then....then you gotta....you gotta do all the work this time"
 
Ichigo smiled at the way she kept on stuttering. It was adorable, but it was also sexy since it sounded like she practically begged for more. When she said he has to do all the work, he nodded and began to slowly lay down with her on their sides. "Don't worry, Karin, you can trust your brother." He told her and then kissed her lips softly. He then slowly rolled with her so she was underneath him, leaving her on her back. With his cock still buried deep inside her, he began to slowly pull backwards, his cock stroking her pussy walls slowly. Once only about two inches of his cock were left, he began pushing back into her slowly. Her stomach seemed to have reduced swelling when he pulled his cock back, but then it went back to being more swollen when he pushed all the way back in.
 
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