/ctt/: Vita/PS4 Asset Theft Smut

>Contains: Huge breasts, breast envy, lactation, breast feeding, asset stealing, breast expansion/shrinking, masturbation, incest
>3900 words



	Vita opened her bedroom door and shuffled out of her dimly lit room, the bottoms of her fuzzy slippers scraping across the floor with each lazy step she took as she rubbed the sleep out of her eyes; she didn't bother to see whether her clock said 'A.M.' or 'P.M.', she just saw that it was '9:00' and that was good enough for her. Dressed with her classic hoodie that went low enough to cover her deep blue panties printed with white X's, O's, pluses, and triangles, she dragged her feet across the living room and into the kitchen to grab herself a drink, where she saw PS4 at one of the counters doing something.

	Vita started to walk a bit more properly in order to quietly step behind her sister without her noticing her footsteps, but it wouldn't matter once she opened the fridge and could feel PS4's head turning behind her.

	“Well good morning, Vita! Finally came out of your cave, huh?” PS4 teased.

	With a fierce scowl, Vita muttered out a quiet “Hey”, already feeling irritated by the comment as she grabbed a soda and popped the tab open. She took a few sips from it and closed the fridge, turning around to face PS4 only to end up choking on her drink as she was greeted by the sight of two massive breasts hardly covered by a white bathrobe.

	PS4 raised her eyebrows and sipped her own drink she had just poured before speaking, “Jeez, I figured you'd be surprised to see me like this but there's no need to choke and die over it,” she blandly remarked.

	Vita recovered from her coughing fit and stared at PS4's unavoidable chest, “Wh-why do you-- why are your tits so big?!”

	“Fufufu, come on now, Vita, as if you've never used a few mods before...” PS4 replied, totally aware of Vita's own personal history with mods and homebrews. “These are just some special temporary mods I'm trying out, just for fun, y'know?”

	Vita tried to think of something to say but in her flustered state it was hard not to be distracted by her sister's large breasts and the way her bathrobe struggled to stay wrapped around them, revealing the edges of her areolas but still hiding her noticeably pronounced nipples, tied off around her waist to hide her hips and privates but still loose enough to see plenty of bare cleavage and midriff. PS4 had fairly large breasts for her slim figure, but now they were huge! Vita was already insecure about her own modest chest when she was with her sister, but now she was downright envious of the large boobs she sported thanks to a few modifications. Vita brought her soda back up to her quivering lips and took a quick drink, quenching her thirst for a moment while she gathered her thoughts.

	“I-I-I um, I'm gonna go back to my room now...” Vita managed to stammer out.

	“Hm? Alright then, well I'm gonna get to bed, it's kinda bedtime for most regular right now and I need my greatness sleep.” PS4 began walking off towards her room with her glass in hand while mumbling to herself in open thought, “... Or maybe, 'the early bird gets the greatness'? Or 'Greatness waits for no sleeping man'? Hm...”

	Vita watched her older sister walk away, admiring the slight sway to her hips while entirely failing to ignore her own arousal; deciding it would be best to take care of that now rather than later, she scurried off to her room with her fingers practically shoved down her panties. However, as her mind was filled with lustful jealousy, a devious idea began to form...

																* * *

	Silently turning the doorknob and cracking the door open, Vita peeked into her sister's bedroom before tiptoeing inside and shutting the door behind her; she could hear PS4 snoring from her bed and knew she was a heavy sleeper, so she didn't have too much to worry about, but that didn't make her any less nervous about what she was trying to do. She made light steps across the dark room, illuminating a path by the light of her phone until she was beside her sleeping sister. She thankfully had a sleeping mask on, so Vita could turn the nearby lamp on without worry.

	Vita leaned over and got a good look at PS4; sleeping soundly beneath her sheets, with two large round mounds extending from her chest beneath the blanket, heaving up and down by the slightest amount with each breath she took. Vita couldn't wait any longer and decided to act, gingerly grabbing the blanket and pulling it down inch by inch, uncovering more and more of her sister's body until she had completely pulled it off. PS4 was wearing her usual pajamas, but her body was completely uncovered – likely because no shirt could possibly fit anymore – and her boobs were now on full display to her perverted younger sister.

	Vita's shaking hands immediately went to feel her sister's breasts, her palms brushing over her soft and silky skin as her hands worked around the large curving features; her fingers lightly pressed down into the soft flesh, and to her surprise they felt totally natural from what she could tell – despite their unnatural size – and they looked just as flawless and perfect as PS4 had always boasted about. Her fingers were naturally drawn to the prominent puffy nipples that rested on top of each of the heaving breasts – which were already erect from the chilled air – sliding them between her finger tips as her hands brushed over the massive boobs before finally placing two fingers around them, gently pressing them together, and lightly tugging on them. They were definitely large, like the size of a small coin in diameter, and they had a nice squishy or flexible feel to them as she gently pinched and tugged on the nipples.

	Letting go of them for a moment, Vita grabbed her phone and swiped through it quickly, opening her camera and positioning herself over her snoring sister; she took a few quick pictures of the massive breasts that weighed down upon PS4's chest, but the dim lighting of the room made the images hard to make out. Vita frowned at this and decided to turn the flash on, now positioning her camera again before taking another picture; the bright light of the camera flashed on and off quickly and the picture turned out much better, but PS4 made a sudden sharp snore that put Vita into a mild panic. Had she just woken her up, even with the sleeping mask on?

	. . .

	Another long snore exited PS4's open mouth. She was definitely still asleep. With her nerves put to rest, Vita resumed taking a few more pictures from different angles, capturing as much as she could of her sister's immense modified breasts to save for later purposes; but then Vita noticed something in one of the images, something under PS4's nipples...

	Vita put her phone down and examined her sister's breasts, only now realizing that there was... milk! Or at least, she assumed it must have been milk. Her sister's breasts were lactating! Vita felt her cheeks growing warm at the sight, and half a dozen different hentai doujins began entering her thoughts as she imagined what kind of lewd scenarios could happen from this. But one idea struck particularly well in her head; maybe if she drank the milk from PS4's breasts... her own breasts would grow larger? She always wanted to have larger breasts, especially so she could compete with her older sister, so the idea of her breasts actually growing in size from drinking her breast milk... it was totally unrealistic, she knew that, but something about the idea was stuck in her mind and she couldn't shake it off. She wanted to have a taste of it.

	Vita lightly wrapped her hand around PS4's breast and brought her shuddering lips closer to it until they were delicately wrapped around the substantial bud; her tongue ran over the top of it once and she could already taste the faint, sweet flavor of her sister's milk. Her lips tightened around the nipple and she began to gently suckle on it, gently squeezing around it as suction built up, then she was suddenly rewarded with the first real squirt of milk into her mouth. And then another. And soon, as she continued  to nurse on the sizable breast, a steady flow of creamy milk began to pour into her mouth, the sweet and delectable taste washing down her throat like a rich vanilla cream. It was just as delicious as she had hoped, and she wasn't sure whether it was because of some mod or if breast milk just always tasted this good.

	There was a gentle warmth growing in Vita's chest as she drank the milk, a pleasant feeling that slowly spread its way around her body. Even if the flow wasn't that heavy, the warm milk was certainly filling her up and making her body feel warm and fuzzy. But her chest was starting to feel hot, and tight... even uncomfortably tight. It felt like her jacket was squeezing her chest!

	Vita broke her lips away from the leaking nipple and sat up properly, unzipping her jacket so she could get some relief from the tension; to her sudden surprise, there was definitely something off here... her breasts... had actually grown!

	“Wh-wha--?!” Vita quietly questioned in a hushed tone, shocked at the sight of her breasts that were now a full handful in size. She usually didn't bother to wear a shirt or bra under her hoodie, so she quickly had her hands on her own two breasts; she gave them a squeeze, and... sweet lord, did it feel good. They were really real, she could feel every little brush of her fingers and the way her palms rubbed against her own skin, the slight give when she groped herself and the flick of her own nipples. Her breasts really grew larger from drinking the milk!

	She, of course, immediately wanted more. Vita realized that both of PS4's breasts had actually shrunken in size a bit – though they were still pretty large – and that drinking her milk must have been transferring their breast sizes from one to the other. Maybe this was what data transferring was like? Still, Vita had already gotten this far with surprising results, and there seemed to be plenty of milk left inside of PS4's boobs...

	Vita leaned over her sister's body once more to wrap her lips around the other breast's nipple, firmly planting her lips against her soft skin and hungrily sucking on the tit to force the flow of milk into her mouth once more. Without much wait, that sweet, delicious taste began to run across her tongue as she swallowed gulp after gulp of her sister's savory treat, her body becoming flushed with heat and arousal as she felt her breasts slowly growing. Her tongue flicked across the nipple multiple times, which quickly bounced back into place each time it was pushed around, and soon Vita's tongue was twirling and encircling around the nipple that she was so happily nursing on. Her chest was slowly getting heavier, just by the smallest amount, and in her hands she could feel PS4's own breasts becoming smaller and smaller, soon reaching a modest size the more she drank from her. PS4's breathing was heavy now, no longer a snoring but instead a sultry and uneasy panting, and soon it wasn't long until Vita had sucked the last of the leaking milk out of her breasts... PS4 was completely flat-chested!

	With a satisfied grin and a quick lick of her lips, Vita sat up properly, which was a bit more difficult this time... because now, her chest was sporting full, enormous tits of her own! This felt so amazing, Vita couldn't keep her own hands off of her as she rubbed her brand new breasts, squeezing into the firm flesh with a slight give to it and rubbing her own sensitive nipples, which had become inverted with her newly gained size. She was so turned on by these new changes to her body, she was doing everything she could to keep herself from fingering herself right then and there.

	But beneath her, PS4 was shifting around and starting to groan. Vita froze in place as she suddenly realized her own errors and prayed that PS4 would just fall back to sleep... but then she started to take her sleeping mask off.

	“Errgh... Huh?” PS4 sleepily grunted with the sudden surprise of light in her room. She rubbed the sleep out of her eyes, which suddenly shot open when she realized that Vita was sitting at the foot of her bed. “Vita? What are you-- what the hell?” PS4 shot up into a sitting position, “How did your boobs--”, but before she could finish her question she had realized that there was a strange absence, like she felt a lot lighter...

	PS4 looked down at her chest and gasped aloud, putting her hands on her flat chest and feeling around all over to confirm that this wasn't some weird dream; after the realization set in, she quickly shot her eyes up to Vita with a mean look, already aware that she must have had something to do with this.

	“What did you do to my tits?!” PS4 exclaimed.

	“I-I-I uh I just um--” Vita nervously stammered as she was quickly backed into a corner with no way of escape.

	PS4 got to her knees and moved closer to Vita, putting her hands on her shoulders as she looked for answers, “Why are my perfect tits gone, you brat?! Why do YOU suddenly have huge boobs?!”

	“I-I just was jealous, a-and I wanted to see your boobs, a-an-and I-I...” Vita took a deep breath, scared for her own safety now that she had pissed her sister off. “I tried sucking on your boobs, and... and you started squirting milk, and... mine started getting bigger!”

	Vita winced and avoided looking at PS4, who looked dumbfounded at the explanation. PS4 took a minute to process the information and think, her loading times as painfully long as ever, before finally looking at Vita's gigantic breasts and deciding on what to do. With a grunt and a heave, she picked her younger sister up and pushed her down onto the bed, with her heavy boobs flopping down on top of her; Vita struggled to sit up due to the weight of her new breast sizes, but before she could get anywhere PS4's hands immediately brought her back down.

	“Oh no, you're not going anywhere...” PS4 threatened.

	Vita gulped and nervously looked at her daunting sister.

	“Tell me, Vita, how big were your boobs before?” PS4 asked in an unpleasant tone.

	Vita adverted her eyes in embarrassment and slowly answered, “... Um, B-cups...”

	PS4 leaned her face in close to Vita's, whispering into her ear, “Well, now you're going to be as flat as a board.”

	Vita's eyes shot open, “W-wait! I'm sorry for trying to steal your boobs, b-but please don't take everything from me!”

	“And why shouldn't I?” PS4 countered with a sharp tone, which stung Vita on the inside, “You drank my tits and took everything from me until I was flat! I think it's only fair that I return the favor to you and make you face the consequences.”

	“B-b-but--”

	Before she could say anything else, PS4 put a hand over her mouth and spoke, “No, you're getting exactly what you deserve, and I'M getting my perfect tits back.”

	PS4 held Vita down and moved her face to her expanded chest, her lips pressing against the skin around Vita's smoothed-over nipples and sucking intensely to force out any milk she could get; Vita immediately let out a pleasured cry from the sudden assault on her boob, her older sister rhythmically squeezing her tit with her hand as she sucked on her nipple. Soon enough, PS4's efforts were rewarded with a sudden gush of warm milk straight into her mouth. The taste was... well, it tasted like what she would expect from any milk, but certainly not as good as any milk she could have produced, she was certain.

	As she resumed to suckle and drink the warm milk leaking from Vita's enlarged tits, PS4 could feel her sister squirming and whining with arousal beneath her. After having a few gulps out of the first tit, she moved over to the other to wrap a firm hand around it and started squeezing it for its milk as she placed her mouth around the nipple. The first few squirts came out, and then a steady flow began to pour across her tongue, and soon PS4 could feel an odd warmth in her chest... and with it, a familiar weight. With each large gulp of her petty sister's milk, she could feel the breasts in her hands gradually getting smaller, though she still had plenty of drinking to do.

	Beneath her sister, Vita was burning up with arousal after the constant sucking and squeezing around her sensitive nipples, it was so unbearable and she just had to do SOMETHING to take care of her needs. PS4 had both of her hands on her breasts, which gave her the freedom to slowly move her hands lower and lower... until at last, she had them shoved down her panties. The horny girl quickly shoved two fingers inside of her aroused vagina while the other hand quickly got to work rubbing her clitoris, her body burning hot with an unnatural need to orgasm while this incredible sensation was happening as her sister sucked hard on her boobs.

	PS4 could feel her warm chest growing heavier every minute, and in her palms she could feel Vita's huge tits shrinking little by little. She needed to be quicker about this though, she needed her perfect boobs back! So she popped the tit out of her mouth and positioned her head between Vita's large breasts, pushed them both together, and latched her lips around both of her leaking nipples at once while firmly squeezing her tits to force as much milk out of them as she could! Two gushing streams of warm cream poured into her mouth and slid down her throat, swallowing faster now to keep up with the heavy flow coming from both of the abused nipples. She could feel her tits growing more and more!

	And beneath her, Vita was in pure ecstasy as she fingered herself like a maniac while her sister roughly groped her big boobs and passionately sucked the milk straight out of both of her nipples. Her fingers squelched with each thrust she made into her wet womanhood, and she let out a heavy moan as she lightly rubbed her clitoris while PS4 sucked harder on her sensitive nipples, the rippling wave of pleasure spreading across her was lighting a passionate fire in her. She weakly lifted her trembling legs and wrapped them around PS4's waist, bringing her as close as she could get as she sucked on her increasingly shrinking breasts. Vita was aware of what was happening, but she was so turned on and horny that she couldn't resist this perfect opportunity.

	She let out another wavering moan, “Ahh! Yes, yes, yes!”

	PS4 sucked harder and squeezed the shrinking breasts as much as she could, gulping down liters of milk from her younger sister's boobs like her life depending on it. Soon though, PS4 could no longer keep both of the nipples in her mouth and had to let go of the shrunken breasts, instead keeping her lips firmly wrapped around one tit while sucking the last of the milk out of it. Her own chest was heavy now, even a bit heavier than before, and she could feel her massive tits weighing down on Vita's body as she struggled to masturbate beneath her. Finally, she had sucked the last of the milk out of her sister's breasts, which were now nothing more than a smooth, flat surface on her chest.

	PS4 hefted herself up, heaving her massive breasts above her horny sister and slowly lowering herself down on top of her, smothering Vita in two great flesh pillows. “So, Vita,” she began, “what do you think of MY new pair of tits?”

	Vita merely responded with a moan of pleasure, still eagerly fingering herself as the gigantic tits squished around her face and nearly buried her alive. PS4 wrapped her arms around her boobs and squeezed them together, enveloping Vita's face between the warm mounds with a gleeful smile on her face. And in return, Vita moaned and attempted to move her face deeper into the giant chest pillows, all while pushing herself closer to her climax as her fingers were thrust inside of her faster and faster, rubbing against her wet walls as they tightened around her digits, and as she desperately rubbed circles around her clitoris until finally...!

	“Aaahh!!” Vita moaned out into her sister's giant breasts with immense bliss, her whole body trembling as heat and lightning washed over her body as she came to an orgasm; her walls tightened around her fingers and quaked with deep pleasure, her back arched against her sister's body and she took deep breaths that pressed her sensitive, flat buds to the soft skin of those huge breasts, her whole body shook with pleasure and delight as she slowly rode off on her sexual high. After a moment, her legs loosened from around her sister's waist and her body laid flat on the bed, worn out from her incredible climax.

	“Well, it certainly looks like you enjoyed yourself. So, what do you think of my brand new tits, Vita?” PS4 smugly asked with a satisfied look on her face, as she lifted her huge breasts with her arms and shook her chest from side to side, taunting her sister with the things she can never have.

	Vita sat there in a daze, watching those massive boobs jiggling from left to right in her sister's arms while she cooled off from her intense masturbation. She finally gathered the energy to mutter out a defeated, “Y-yeah, I-I do...”

	“Good!” PS4 began, “Then you can enjoy watching me walk around the house with these big, perfect tits for the next week while you get to enjoy your flat little chest. Aren't you always going on about how 'flat is justice' and how it's so much better than 'cow-tits'?” she verbally jabbed.

	Vita quietly grumbled to herself, “Y-yeah, um...” She couldn't lie to herself about it; while she was still jealous and upset over the fact that she was totally flat now, she couldn't help but love how gigantic PS4's boobs were and imagined how many possible scenarios she could masturbate to in her room for the next week, plus her secret pictures. “J-just promise me you'll give me my boobs back, o-okay?”

	“Don't worry,” PS4 assured, “these mods only last a week, so you'll have your boobs back before they expire... But don't even think I'm letting you have another taste of my delicious greatness.”