The bookworm gets some practical knowledge

Marisa hurried through the bunker to where she knew Theresa was staying. The eighteen year old black haired girl was a senior at an all girls high school. She always wore the uniform in public, to the point that the joke around the neighborhood was that she didn't own clothes of any other style. Now Marisa, dressed in a similar outfit, was going to see what she looked like underneath that concealing uniform.

Spotting the girl's short hair disappearing around a corner, the aroused futa slowed down and crept forward. She peeked around the corner and saw Theresa slowly walking around, her small but cute butt swaying with her steps. Not in the mood for any games or drawn out teasing, Marisa rushed forward, grabbed Teresa's clothing, and pulled her to her knees, accidentally ripping her shirt apart in the process.

"Open wide!" Marisa said cheerily. Theresa had all of a half a second to scream before Marisa's cock pushed between her lips and instantly exploded, unleashing a wave of jizz into her mouth. The sticky liquid overflowed Theresa's mouth, filled to the brim until it couldn't contain the volume anymore. Marisa gasped with pleasure as her testicles emptied and refilled, pouring a nearly endless amount of cum into the panicking girl. Drops of jizz jumped and splattered against the large coke bottle glasses sitting on Theresa's nose, doing the same to her pale face.

"Sorry to be a quick shot, but I can't wait to see you get your own cock. Plus, I wanna be the one to get that pussy. Oh wow, your tits are growing in!" Marisa's face was contorted into one of utter bliss, tears leaking out her eyes at the raw **** of cumming in Theresa's mouth, whose tits were indeed growing. No more were they barely larger than bee stings, now they hung heavily on her still slim chest, which oddly hadn't changed to match her new endowments, which were even larger than Marisa's. Her mind was helpless before the overwhelming power of the virus, caving almost instantly under the pressure.

"That's enough of that," Marisa gasped, pulling her dripping dick out of the changing high school girl's mouth and stripping out of her uniform except for the stockings. She laid down on the floor, her above average dick standing tall and ready to be mounted. Theresa wasted no time doing just that, her normally rational mind suppressed underneath a fierce need for sex.

Still, Marisa was surprised when she met no resistance as her cock disappeared into the black haired girl's squeezing cunt. "How are you not a virgin?" she asked, barely able to string the words together through the ecstasy flowing up and down her spine.

"Got fucked...twice.....wasn't a -hhhah- fan. Not like now. Now.......I can FEEL IT!! MY DICK!!" Theresa screeched, her tunnel locking down around Marisa as the both came and the bookish girl's clit extended and shot her first drops of semen. The small jets became longer, stronger, and larger as the glasses-wearing teen's cock grew in fully, finding a warm home between Marisa's tits. The new futa would have grabbed the soft globes and squeezed her pulsing shaft with them if she hadn't already been cumming, splattering the two futanari with hot, sticky cum.

The two changed girls moaned with pleasure as they stained the hallway with the jizz pouring from their dicks. Theresa's new appendage continued to unload onto their curvy, infected bodies, and Marisa's filled the formerly reserved girl to the brim and then some, the extra fluid forming a puddle around them as they continued to rut, jerk, hump, squirt, cum, and moan. Their debauchery was endless, born of the remains of an overly horny young man and the repressed desires of a teenager. The two were more than happy to continue as they were, but they both hoped someone would hear their screams and stumble upon them, damning themselves to futadom in the process.