Jenny twitched while recovering from her recent orgasm, mortified at her inability to control her arousal and whenever her penis...her sister would act out against her will. Even worse was her best friend who was openly encouraging Julie to have sex right there in front of the entire school. Not even a single student batted an eye however, not even those that got splashed with stray cum and semen as it dripped in their foods and their faces, it was as if they werent even aware of it's existence or just didnt care at all.
Jenny moaned loudly, she could feel her penis continuing to make out with Kris exchanging sloppy semen filled kisses while both of their naked glistening pussies dribbled copious amounts of cum on the floor. She could feel every touch, caress and tweak Kris was applying on her sisters body and only served to arouse her to even higher depths. True to her curse, Jens libido was not to be sated anytime soon.
Overwhelmed by the feelings her sister was sending her, Jenny was helpless to do nothing but squirm and moan as she watched her sister have slimey lesbian sex with her best friend in the middle of the school cafeteria, her umbilical chord pulsing and throbbing sending blood flowing into Julies body. Jenny watched in rapt fascination as she saw her sister body began to slowly but surely inflate in all the right places. Her skin becoming a slightly darker tan, her thighs, legs and calves gaining a subtle buy healthy definition, with sensual feminine curves that would make a barbie doll weep. Julies ass began to plump up faster than anything else, her cheeks out growing her hips before they could barely catch up. Two large spheres of taut tanned flesh that looked more at home in a brazillian porno attached to hips wider than a door frame jiggling enticingly before her. The sight of her sisters new plump ass was by itself an arousing sight with her new libido, only adding fuel to an ever growing fire. The surge of arousal sped up the process as Julies breasts inflated to insane proportions becoming bigger and bigger with every single heartbeat, her skin glistening with sweat and cum as she panted from Kris's tender strokes. Jenny could scarcely hold herself in check, her sister had just inflated to something that you would find in depictions of a fertiity goddess. She could feel sisters body more aware than ever before, beneath her tanned sweaty skin was an ocean of frothing hot cum just waiting to burst forth and Julie was all to eager to release it as soon as possible.
"Kr..oh god...Kris!! STOP!" Jenny screamed, and sighing in satsifaction as her shout appeared to momentarily intterupt them"
"What's wrong Jenny? I said I would help you out is it not working?" Kris asked in genuine concern. Julie meanwhile continued to stroke herself where Kris had left off.
"Oh No, dont worry about her, she's just going through her little phase again of being ashamed of me...she'll get over it again like she always does and then we'll be back to jerking off everywhere we can" Julie said in between moans, her head not even once looking up Kris, fixated solely on her pussy.
"NO, This isnt right Kris! this is wrong!, Julie please stop that, Ohhh Julie...god!" Jenny spasmed.
"Sorry Jen,...but Julie is in no condition to ignore your urges right now, if she doesnt cum soon she'll get backed up and well...you know how bitchy that makes her" Kris explained with some sympathy. Julie smirked as she licked Kris's inner thighs leaving a trail of cum wherever her tongue touched.
"Sorry sis, you and I both know how much you need this, wouldnt want me to get blue balls now would you?" Julie smiled as she zoomed in on Kris's watering pussy darting her face forward and Jenny gasping in astonishment at the sight and the overwhelming feeling of seeing Julie's head seeming to shrink and become semi-tubular gaining the volume and thickness of her umbilical cord from the neck up and slipping smoothly into Kris's eager cunt. from an outsiders perspective it looked like Julie had suddenly shoved her entire head up Kris's vagina.
Which was the truth, Jenny could feel the hot velvety contours of Kris's inner folds, she could taste her lubrication from the small tongue Julie was using to lap at her insides, spreading her seed with each lick at her inner walls. Julie pushed deeper until her shoulders were wedged tightly between Kris's thighs, Kris moaning in delight and using her legs to simultaneously rub Julie's breasts and back with her feet. Jenny was lost in ecstasy, of having her penis fuck her best friend, helpless to do anything but revel in the sensations. She could feel Julie's breasts pulse with each thrust, growing larger and more taught, her nipples and pussy dripping clear pre-cum in anticipation. When Julie moved her hand down her own body and began to tweak her own pussy it set off a fuse within Jenny that made her finally explode.
Screaming in incoherent bliss she felt her sisters head pulse with white hot pleasure and spew forth what felt like nearly two gallons worth of semen directly into Kris's womb, her midsection bulging noticeably from the strain. Jenny groaned lowly as Julie slowly withdrew her head and neck from Kris's depths, her head inflating back like a baloon to a normal shape. Julie's hair was matted with female lubricants and a liberal coating of her own cum, she was breathing hard and Jenny felt the oddest sensation of her penis swallowing it's own semen and returning from whence it came.
"Oh god Jen, you and your sister are amazing...I dont know what I'd do without you guys. Everytime I see Julie out in the halls I cant help myself. Thanks Jen, Julie I'll see you after school" Kris panted as she gathered up her book bag, her discard clothes and headed off towards the girls locker room to clean up. Julie's glassy eyed gaze mesmorized by Kris's tight ass cheeks swaying back and forth. Her breasts gaining an slight increase in size due to further arousal. Even with the amount that Julie just came, she was still very much bloated her breasts larger than basketball sized and her ass about the size of a trucks tire. Jenny could barely support herself, her only input being her labored panting as she struggled to remain focused. Julie wobbled to her feet her assets wobbling to and fro and strutted towards her sisters prone form.
"Thanks Sis, I knew you would COME around eventually" Julie giggled at her pun, sending her breasts into convulsions. Jenny was too tired to reply.
"You rest up, if you want...dont worry, I know how you feel. I've still got alot of pent up cum backed up In me from your little miss prudish stunts...so you just stay here and I'll go hit the girls locker room and see if any of the girls are interested in some action" Julie winked, still naked and wearing nothing but the drying semen on her body walked off, leaving Jenny to slowly recover from her latest experience.