The selfish sister, in a fit of jealousy, invades her brother's shower space, hoping to catch him in a vulnerable moment. As the steam fills the room, she peeks through the curtain, her eyes widening at the sight of his thick, throbbing cock. She can't help but imagine it filling her, as she slips a hand under her towel, her fingers finding her clit, already swollen with desire. Her other hand cups her breast, pinching her hard nipple, as she watches him soap up, wishing it were her hands on his body.