“Look at the size of my ass!” Gary whispered to himself in awe, looking at his own enormous round backside in the mirror. Giving it a playful spank, he watched mesmerised as his cheeks wobbled and jiggled. “I’ve never seen an Asian chick before with a bubble butt this huge... I wonder what the guys at school would think? They’ll never look me in the eyes again!”

“Checking yourself out, little brother?” Another female voice called out, and Gary turned to see his sister Lisa was standing in the doorway. “I thought you loved thick Asian girls?”

“Not when I’m the one lugging this fat ass around!” Gary groped his booty for effect, watching it drop. “Everyone’s going to think I’m a huge slut!”

Lisa shook her head, waving her wand. “Looks like you didn’t learn your lesson, bro. If turning you into the kind of woman you drool over isn’t enough to teach you respect, maybe you need a little more convincing...”

“What do you-UGH!” Gary’s knees shook as he felt a sudden fire between his legs, and suddenly he began to think of how good it would feel to spread his legs for one of the school jocks. “What... w-what did you do to me?”

“If you think all women are sluts, maybe you need a closer understanding...” Lisa giggled.

“SERIOUSLY!?” shouted Gary, reaching a hand down his tight leggings and teasing his tight pussy with his slender fingers. “You turned my sex drive up way too high! I can’t stop thinking of...” He closed his eyes and began to fantasize about how good it would feel to be spanked and fucked doggy-style by a well-hung guy. “...of HUGE COCKS!”

Sarah figured she was going to give her brother a day or so before changing him back, but when she heard the loud, satisfied feminine moans coming from his bedroom later that night, she reconsidered. As a rotating door of boys from his friend’s list had their turn with the school’s newest town bicycle, she thought he could use a bit more time to really ‘enjoy’ herself and learn her lesson...