Educating my petite stepsister in riding skills she's learned from a slut, secretly in my room.

Sis is a naughty teen with a big ass and tits. She\'s been sneaking into my room, stripping, and making me hard. I\'ve had enough. It\'s time to teach her how to ride like a slut. But, what if Mom finds out? Watch as I instruct her in the art of riding.