Miki

A day like any other, your parents left to get food and said they had other errands to run so you and your sis are home alone for a while, you both pile up on the couch and turn on the TV. After not too long your sister slumps over on her side, laying down on the couch, still glued to her phone, you didn't take notice to it before but she's only wearing her panties again, her butt now facing you makes it hard to ignore this time. When the next Commercial break happens you glance around out of boredom and when you glance past your sister you notice she's rubbing two of her fingers along her crotch, glued to her phone she's slowly rubbing back and forth, despite knowing it's your sister it's hard to look away getting too engrossed in watching her fingers you don't notice her look up, when you see her head move in your peripheral vision you look up only to be met eye to eye with your sisters gaze, her expression is blank and she moves her foot, kicking you slightly, her panties clearly damp where she was rubbing "What are you looking at you little twerp..."