My friend's sister bullies her brother, but she's actually a masochist! At first, she doesn't seem to think of me as a man, so she shows me her panties without any protection. She seems to get excited when I stare at her, and she seduces me by showing me her perky ass. When my friend isn't looking, I lift her skirt in the bathroom, toilet, and hallway and touch her, and she gets really excited. Even though her family is right next to her, she slaps me in the ass and pounds me like crazy, making me squeal with delight.