M-kun's innocent night out turns into a wild ride when he encounters Ayumi, a seemingly sweet Japanese girl who's hiding a naughty streak. She invites him to her place under the pretense of watching a movie, but once they're alone, she pounces, pushing him onto the couch and straddling him. She grinds against him, her fingers exploring every inch of his body, driving him crazy with desire. M-kun tries to hold back, but Ayumi's determined to make him cum, and soon, he's exploding in her hand, his body shaking with the force of his orgasm.