Karyn's night had been unpleasant, and bizarre, to say the least. The wish, thankfully, hadn't changed too much about her home or her life, as far as she could tell; but it was still very weird to her to look at old family photos and see this blonde girl standing where she should've been, or to discover that apparently she had a whole shelf full of bras now (before, she'd hardly bothered with them). It was almost like she was sleuthing about a stranger's house to rediscover her own life, at times. Part of her suspected there'd be a massive butterfly effect because of her wish -- like in the movies, y'know, when someone changes the past and somehow causes a post-apocalyptic alternate reality or something -- but as far as she could tell, no, the only odd "butterfly effects" had so far manifested just as slightly altered text conversations and saved photos in her phone, a few minor changes to her wardrobe, and a flyer for the cheerleading squad she was sure she hadn't been given before (thankfully, given how crumpled up it had been, Karyn had found the idea just as repulsive in this new timeline as in the old).
More strange to her than anything else, though, was just how different the physical sensations she was getting from her new body were. At no time was she more acutely aware of them than when she tried sleeping; her usual instinct to just flop down onto her bed just about knocked the breath out of her, her larger breasts having smashed into her ribs with not inconsiderable force, to say nothing of the electric shock of feeling they themselves gave as a result of the motion. Thereafter, a frankly embarrassingly long portion of her night was spent just trying to figure out the "right" way to lie with the big, sweaty things; sleeping on her front was right out, of course, but sleeping on her back encouraged them to sort of flop around and jiggle and generally disturb her with any slight motion on her part (including breathing, frustratingly), and sleeping on her side put some uncomfortable pressures on her shoulder and upper arm, in addition to getting her newly lengthened hair in her face and eyes. She then considered sleeping with a bra on, but swiftly realized that were she to sweat at all in her sleep, the bra might end up chafing, and imagining that sensation got her to swiftly discard the idea. Still, she needed sleep, and wasn't getting any like this; so at one point in the night, tired and frustrated, she got out of bed, turned on the lights, and considered herself in the mirror, hoping that might give her some epiphany about how to sleep properly.
Not for the first time that day, Karyn found herself staring intently at her nearly naked reflection while reflecting herself on her new situation. This time, the only thing she wore were some pajama bottoms and panties, her upper half left totally bare to better think her situation over. In a way, the visual image of herself was almost disappointing; in most poses, all it took was the least bit of sag to sort-of conceal how huge, heavy, and unwieldy those tits really were, and definitely didn't betray what a massive pain they were to their wearer.
Yet despite that, a thought came, strange and unbidden, into Karyn's mind, they still look pretty huge anyway, don't they?
That was true. The stone had certainly been generous with their size; while they weren't absurdly huge, my rack wouldn't look out of place on a porn site, she thought in that odd new flavor her thoughts suddenly took. I wouldn't look out of place on a porn site, Karyn realized. They're pretty sexy, after all. Reacting to an urge, Karyn reached up and started giving one of her breasts a playful squeeze, taking in the unfamiliar new sensations of her new body a bit more sensually than she she had before.
Wait, am I horny? Right now, of all times? Karyn thought, with her thoughts a bit more familiar than they had been before. As if in answer, that new flavor of thinking took over and replied Yes, I am. How could I not be? My boobs swell in size, I'm acutely aware of them and their feelings all day, and I finally have a private moment to explore myself. Of course I'm horny! The hand kneading one of her tits became more vigorous and started playing with a nipple while it was at it, sending a rush of pleasure up to interrupt a growing feeling she had that something's not right...
Breaths coming more quickly and shallowly, Karyn looked to the door, and then to the clock. Nobody was going to hear or interrupt her at this time of night, she figured. Then let's go! the odd thoughts persisted over concerns that she ought still be quiet and careful anyway. As she started to pant, her free hand slipped underneath her panties and began to rub, the other fondling herself with steadily increasing vigor.
Karyn was now nearly certain something weird was up, but she couldn't bring herself to focus on it nor stop what she was doing, lust now muddling up her every thought. "Wh-... What is th-this?" was all she was able to gasp out as she masturbated. "What, ngh, what am I doing!?"
Shhh, just enjoy it, you horny girl, Karyn thought. Just let it flow out of you, and let me flow in, the thoughts that weren't hers continued. We can get properly acquainted once you're past your climax.
Karyn could hardly have stopped herself even if she wanted to by then. She knew it was wrong, but she was just too horny to care. Moaning and thrashing, rubbing and groping, Karyn and her newest bad influence pushed her over the edge, and she came. Hard. Karyn just about blacked out from the pleasure, collapsing to the floor in a sweaty mess as the orgasm overtook her. It was strange; in addition to the usual panty-soaking, trembling, mind-blanking pleasure, Karyn became aware as she climaxed of that new flavor of thoughts and feelings somehow flooding her being at the same time the orgasm did. Whatever it was, it was settling into her bones, her shaking muscles and twitching genitals, and most strongly and dangerously, into her head. It was alien and foreign, and repulsive like it reeked of sex and regret, and somehow Karyn knew whatever it was, she wanted it out of her, now. But it lingered.
Karyn, she was about to learn, had just been possessed for the first time.
