Slim, black-haired Marie Okubo takes on a challenge: make the man cum within five minutes of penetration while riding him. She calmly strokes his cock, then starts moaning sweetly once she mounts it. Marie fails the time trial, so the performer gets his wish and creampies her in cowgirl. Instead of stopping, he stays inside, shifts her into doggy style, pounds her hard enough to twist her face as he reaches deep, and delivers a second heavy creampie.