Exclusive amateur couple project! A daring challenge where the boyfriend wins 100,000 yen if he correctly guesses which part of his girlfriend's lower body was stimulated, but if he fails to notice, she takes the 100,000 yen prize. Through a one-way magic mirror, her completely defenseless lower body is revealed as various pranks unfold—vibrators, electric massagers, cunnilingus, and more. Risking their relationship if he discovers the truth, she reaches explosive orgasms right before your eyes, screaming in ecstasy. Witness the breathtaking moment when shame and pleasure collide, drawing the amateur woman's body into an irresistible whirlpool of sensation!