Theresa first, with more people close behind

"What the fuck?!" Lina had heard Theresa scream as soon as she entered the backyard and saw her sitting in the pool. The endowed black-haired girl hadn't really cared about her sister's bitchy complaints, not while masturbating and reveling in her massive tits. She had heard that Theresa was speaking, but her actual words were lost in the swirling lust that only seemed to consume Lina more as time went on.

Finally, annoyed at being completely ignored by her blatantly moaning sister, Theresa had grabbed Lina by the arm and dragged her out of the pool. She was about to throw her younger sister to the ground and berate her further when her eyes became fixed on Lina's massive, wobbling, entrancing breasts. Every bounce and jiggle encouraged her to look more, to watch the little drops of water and sweat as they trickled across the plump flesh.

"Fucking let go of me, bitch!" Lina had yelled, but was shocked when Theresa actually listened, releasing her grip without a second thought. Her eyes had just stayed locked on Lina's glorious chest, drinking in every bit of it. "Uh, hello? Theresa? What are you doing?" the confused sister had asked, waving her hand in front of Theresa's blank face.

"...Tits.....beautiful..." the other girl had mumbled, eyes not moving an inch.

"I mean, yeah they are, but what the fuck is wrong with you. Why don't you go jump in the pool and fuck off, you creep." Lina had been astonished when her former tormenter had done just that, instantly turning and flinging herself into the pool fully clothed. She surfaced a few seconds later, only to **** her hands past her waistband and start masturbating, cumming violently after only a handful of seconds. Compared to that, Lina was only slightly surprised when Theresa started to change, her skin paling, face becoming slightly prettier, hair becoming the same pitch black color as her own, and her breasts expanding a little, though they stopped well below her own massive size.

Lina had pretty quickly figured out two things: one, Theresa had apparently been completely entranced by her expanded tits, as evidenced by the swirling spiral that had overtaken her eyes, and two, that the pool somehow had the ability to turn people into nymphomaniacal sex addicts, like what the flower had done to her. Both of which were absolutely awesome.

"Oh, I think I hear the first people," Lina said, finishing off the mixed bowl of punch she had been stirring. "I'm gonna go say hi. You keep practicing on that popsicle, Theresa. What are you supposed to do when you see a guy?"

"Offer to blow him like the slut I am," her hypnotized sister said tonelessly, continuing to fellate the popsicle in her hand, just like Lina had told her to.

"Good, maybe you can be useful for something tonight after all. See you later, slut!" Lina called, swaying out the back door with a sexy sway in her hips that ensured her tits bounced with every step.

"Hay girl! My god, you look so good!!" Mindy, one of Lina's friends, yelled when she saw the gorgeous girl in her overflowing bikini. The stacked woman saw Mindy standing in front of the pool in a pretty red dress with her other friends Bea and Niki next to her in white and black dresses respectively. All three were about as curvy as Lina had been before her transformation, which was to say 'not very'. Fortunately, Lina had just the thing for them.

"Thanks, Mindy, you three look good too!" she said happily, bounding up to hug them all.

"Don't give me that, Lina, what the hell happened to you?! You definitely didn't have these yesterday! And these things are definitely real," Bea said, giving one of Lina's sweater puppies a squeeze, which drew a small moan from the absurdly endowed girl.

"More importantly, how can I get some?" Niki asked jokingly, still not really believing what had happened to her formerly flat friend.

"Well, funny you should ask, because I want to do just that! Enjoy!" Lina **** herself out of the group hug, and at the same time pushed the trio back. All three of them overbalanced and fell right into the pool's infectious waters.

"Lina, what the he~eeeohhhh~" Mindy exclaimed before her eyes went wide and her protest turned into a low moan. Next to her, Niki had her arms wrapped around her midsection, face contorted in alternating pain and pleasure. Both women felt their bones grind together as the changes dug into them. Hips widened with a small pop, breasts surged out against dresses that were rapidly becoming insufficient to contain them, prompting them to change into sexy and revealing swimsuits. Their faces became more beautiful as their clothes finished tightening. Mindy's was a bit of a halter top style, with a large gap to show off her new cleavage, but Niki, with all her excess fat sucked away, was more eye catching, her suit forcing her new mounds to spread out and revealing delicious amounts of side and underboob. Both collapsed against the side of the pool as soon as their changes were through, both sexy, aluring, and extremely horny.

"Fuck yesss....look at these things...look at this belly..." Niki moaned, reveling in her slimmer, sexier form. She hadn't been fat before, but her slimmed down, hourglass body was far more to her liking. "Where are all the guys to drool over me?"

"I dunno...but I'll drool over you," Mindy said, staring at her long time friend with open desire.

"Yeah, come here, sexy, we can make out until some guy comes to fuck." The two girls immediately sprang together, mashing lips and feeling every inch of changed flesh between them.

Bea was experiencing something a bit different, as evidenced by having stripped out of her white dress entirely and rapidly masturbating at the sight of her two friends making out. Her small occasional thoughts of lesbianism had suddenly bloomed and hit her full on. All she wanted at that moment was to be face first in a woman's cunt, eating her out until she squirted all over her face. She didn't even care that her breast growth wasn't as significant as Niki and Mindy's, she just needed to taste pussy.

Luckily, she saw the perfect person almost instantly. Standing nearby talking to Lina was Amy, the school's most well known lesbian and someone who, if rumor had it right, was always willing to fool around. Which was exactly what Bea needed right now.

Throwing herself out of the pool in all her naked glory, Bea ran right up to the short girl, small breasted girl and hugged her from behind, almost immediately soaking the back of the girl's shirt. "You wanna come upstairs with me and ride my face?" she whispered to Amy, who immediately stopped speaking and looked over her shoulder, a sneaky grin slowly stretching her lips. Any inhibitions she might have had were soothed out of her by the virus-laced water against her skin, ensuring she felt the same desire as Bea.

"Sorry, Lina, we'll have to catch up later," Amy said, brushing her shoulder-length brown hair to one side, exposing her neck and collarbone to Bea, who started gently kissing it right away.

"No problem, there's plenty of other people here. Oh, and if you two want somewhere quiet, there's plenty of the rooms of the third floor. Have fun~!" As soon as Lina had turned away, Bea grabbed Amy's hand and dragged her inside and upstairs.

Finding an empty room and locking the door behind them, Bea stood looking at Amy and panting. "You haven't done this before, have you?" Amy asked slyly, still smiling. Bea just shook her head no, her hands twitching to dive back into her own pussy. "How about you lay down on the bed then? I could use a good tonguing." Bea hurried to obey as Amy stripped out of her wet shirt and pants, before climbing onto the bed herself. Eager and surprisingly horny herself, the long-time lesbian lowered her crotch onto Bea's face, immediately feeling the other girl go to work.

She was surprised at the ferocity Bea displayed, apparently determined to make her cum as fast as possible, but couldn't bring herself to be disappointed. Not when it felt so good. Bea practically devoured her pussy, tongue reaching, stroking, licking, and lashing every bit of her poor, unprepared slit. Her hands held tight around her hips, forcing her to stay in place and take every bit of effort the frantic woman could give. Her climax grew quickly, terrifyingly so, but Amy could do nothing but hold on tight and moan.

Bea, for her part, was nearly orgasmic the entire time anyway. Pussy tasted just as good as her minutes-old dreams had hoped, better even. Amy's moans were a pleasure all their own, though muffled by the thighs squeezing down on her head with increasing pressure. She took that as a good sign and just kept working, tracing up and down, playing with the clit, forcing her tongue as deep as she could and trying to taste every centimeter she could. And when Amy's pussy finally tightened around her tongue and she tasted a gush of sweet fluid, she couldn't help but cum herself.

Amy would have been shocked by Bea's sympathetic climax if she hadn't been busy experiencing the strongest orgasms she had ever felt. A few girls in the past had been able to make her cum twice in the past, but that had taken an insane amount of teasing and definitely more than the ten minutes Bea had spent in tactless fervor with her. And yet one orgasm spooled directly into the next, her body writhing with unrestrained bliss, belly undulating and small tits jiggling for all they were worth.

Finally, the brunette lesbian couldn't take it anymore and slumped over, her hips still jerking as climactic bolts continued to lance through her. Her body just wouldn't stop and whimpering grunts leapt from her throat of their own volition, long, low, and telling of just what she was experiencing. Luckily Bea was leaving her alone, too busy slurping up as much of the brunette's squirt off her face as she could; Amy wasn't sure if she could have handled more stimulation.

Just as she started to calm down, what felt like a spear of feeling pierced her from cunt to brain, making her spasm rigidly and grunt before abruptly losing consciousness. Less than a minute later, she exploded back to wakefulness, writhing in a shattering orgasm. Every inch of her body tingled like she had been scrubbed raw with soap until there was nothing but new skin. And some of that skin felt even more different, likely courtesy of the two proud tits sitting on her rapidly rising and falling chest.

"Let me suck on your nipples!" Bea suddenly cried, diving for Amy's transformed titties. Before the newly infected brunette could do anything, the rabid lesbian's mouth was around one of her hard peaks and suckling desperately, trying to extract milk but only finding success with moans. Those were gratifying in their own way though, especially as Amy mauled her other, now rather huge, tit.

Half an hour, at least three dozen orgasms, a few unexpected makeout sessions, and one raid on Theresa's bikinis later, Amy and Bea rejoined the party downstairs, which had steadily been growing in size with more and more people showing up. They had both obtained a change in wardrobe, Bea sticking with her original white color scheme with a bikini that complemented her slightly more vivid blonde hair and showed off her newly curvy body, which she and her lover had taken plenty of time to examine and enjoy. A low slung pair of jean shorts ensured that everyone couldn't see just how sodden the bikini bottoms were, though from the look of the party, that wouldn't be a point of concern for long.

Amy was reveling in the full extent of her new body as well. The slight paunch of her belly had smoothed out into a perfectly refined midsection, the type that had a gentle rise to it and would be perfect for someone to perform body shots on, preferably a hot girl. Thicker, softer thighs sat below nicely proportioned hips, a detailed curling tattoo sitting on one of them. The real show was her tits though, and she knew it. Cupped perfectly in a bikini that almost seemed like a bra, they were round, tight, lacking in even the slightest bit of sag, and glistening in the sun. Bouncing softly with ever long stride she took, Amy loved the looks she drew, her own crotch moistening at not just the wander gazes of the girls, but also the men. The virus had switched her from lesbian to utterly bisexual and she couldn't find any grounds to complain. For the first time, she wondered what it would be like to be sandwiched between two cocks or to share a throbbing length with another girl and get coated with jizz.

"I'm going to go have some fun, see if I can't get a taste of some of these boys. I bet they'd love to jizz all over the coveted lesbian girl while she begs for it," Amy said, giving Bea one last scorching kiss that had the other girl moaning with delight. "Thanks for giving me this sexy body."

".....yeah..." Bea mumbled, dazed from the kiss. She recovered quickly though, coming back to herself for the moment. "You'd better put it to good use, I want to hear you screaming with some dick up your twat while I show some girls what my tongue feels like."

"You can bet on it. Come find me if you get bored with them, I'd love to fuck you again."

"Me too," Bea giggled, giving Amy one last smooch before turning and striding towards where a few slightly younger girls were whispering to each other. Their eyes immediately settled on the confident, statuesque woman strutting towards them, and Amy knew they were in for a good time when they inevitably caved to the blonde's advances. Smiling at the thought, she plumped her own tits and walked off towards the living room, wondering how many shakes of her new boobs it would take to get a guy to cum in his pants. She was eager to find out.