UMD-934 - Couldn't Resist and Slid Right In! Sister's Sticky 'Practical Sex Education' [5]

Completely lost it during sister's dangerous sex education!! ■ Sister came home and changed clothes wearing only my T-shirt... I accidentally got hard. My sadistic sister caught me and started a sticky thigh play, teasing, "Your body is so honest lol". ■ Sister came to my room to borrow a book in revealing loungewear. I couldn't stop staring, got caught, and it led from thigh rubbing to raw insertion! ■ Struggling with my girlfriend, I asked my sister for advice. She offered a 'physical lecture' to help. Things got heated, and she started a spartan cowgirl lesson, saying, "You need to handle the stimulation of a girl moving on top!"