"So, can I stay over for a sleepover? We do have the weekend." Marshall said. Jeff looked concerned about when Riley would get home. He needed to quickly reply. "Sure, why not, lets order pizza using moms purse!" Jeff said. (Aw shit, why did I say that?) Jeff thought.
After playing their games, Jeff looked outside to see the sun setting, he knew he had to switch back to being his normal adult self before Riley would come home and freak out. It was now 17:00. Thankfully, he had taken care of his father and mom, giving them a coupon for a hotel for 2 nights so he had the whole house. But now the real Riley was about to return from soccer practice, so Jeff had to move.
"One sec bro, gotta pee, don't move!" Jeff rushed. "Hope you don't mind I farm your AFK character! Free XP!" Marshall laughed.
Exiting Riley's room, he entered his own. He thought about transforming back into his normal adult body, but he knew the boys wouldn't appreciate having him around. He decided instead that he would take the form of his mom. He quickly input the information on the computer, typing away quickly as Riley could return any second now. "Blonde, chubby yet fit build, 5.8", age 45, yup, that's about right..."
Jeff removed Riley's small clothing and stood totally bare. "Not gonna miss you, shitty underwear." he giggled. He pressed "Accept" and let the computer camera scan his body for the transformation. He spread his arms out, and the computer froze him in position.
Jeff soon felt a strange sensation, his skin tingled as his height began to increase. He grew from 4.7" up to 5.8" He was soon in agony, groaning. As he grew taller, his chest expanded, mounds appeared, then heavy breasts formed, swelling like big jiggly balloons. They expanded like crazy. His nipples stiffened and harden, and he couldn't help but moan a little. "Wonder if they got any milk left, he he."
"Breast tissue growth 100% complete," the computer said. "Now enlarging buttocks."
His butt was next, his two flat cheeks grew out into big perfect globes that protrude out way more than he originally thought. Clearly mom did her squats. "Ooooh!" He felt his hip begin to broaden, and his butt grew larger and rounder, taking on the familiar shape of his mom's. With aging, the ass begun to sag a little, and gained a tiny amount of cellulite. Though, it was still firm for good cushioning "Oh my lord..." Jeff said in his motherly voice as he looked back at his big fat cake. "Oh, fuck yes."
Marshall started to hear noises from Jeff's room. "Jeff, Jeff? Is that you in there?" Marshall piqued. Yet no response. He could only faintly hear what sounded like pleasured moans. "Fuck, is that Marshall? Hurry up, stupid computer." Jeff whispered.
"Gluteal tissue enhancement 100% complete," the computer spoke again. "Now performing total genital conversion"
Jeff was scared of this part. He knew he would have to kiss goodbye to his tiny manhood. As the transformation neared its completion, he soon felt a fire between his legs. He watched in horror as his small cock began to painfully retreat up inside him, creating the perfect warm womb. The outer flesh folded in on itself until all that remained was a smooth opening like he had never seen before. It grew larger, plumper, until it was unmistakably a vagina, one that bore the signs of age and experience with partners. Jeff, now his mom, Sarah, was unsuspended from the computer, and could finally move. "Unbelievable". He poked at his vagina in awe. "My body is now capable of giving birth!" He looked down, eyeing his massive boobs that wouldn't stop jiggling. "Nice ass!" He said as he gave his big rump a joyful slap.
"Enjoy your new body, Jeff." the computer beeped. "That's Mrs. Harris now!" Jeff victoried in his motherly voice.
"Hey, Jeff, are you home? I thought you were out with your friends? I'm coming in." Marshall slowly started to open the door. "Shit, I can't let him see me naked!" Jeff cried. "He'd probably tell all the kids at school!