Her brother decides to punish her by slipping her dress off

"Hey Sis," Kylie's brother Dylan pulled up, "you did the dishes, right?"

"Uh, no," Kylie looked in his general direction, "I forgot, sorry."

"Damn girl," Dylan shot back, "I know you're blind, but it's just the dishwasher, you just feel where you are and put all the dishes in."

"I know, sorry..." Kylie grimaced in mock sincerity.

"Okay, fine," Dylan creeped around Kylie so she couldn't sense him coming from behind. He made extra sure not to creak on the hardwood floors as he snuck up to Kylie and started to tickle her with a strap of her own dress.

"Ah!" Kylie shot back in surprise, "who's there?"

"It's the punisher," Dylan said in a mock low voice, "next time do your dishes."

"Dylan, sto-op!" Kylie started to giggle and feel sensations, "you know I have sensitive skin."

"I know," Dylan replied coolly as he swept Kylie's dress strap over a wider and wider area of her skin. He wasn't initially trying to strip her, he just wanted to have her skin feel the dress slide over it.

Eventually, though, as young men are wont to do, Dylan got curious with what he could get away with, and took both of Kylie's straps and slung them over her shoulder. She gasped, as her belly now felt the top half of her dress slide off it and pool onto her lap.