Hana Aoyama is stunned when her husband's adult younger brother admits that he is a virgin and asks her to give him his first sexual experience. Claiming it will only happen once, he suddenly strips and presents his hard young cock, making her resolve waver. She makes him promise to keep it secret from her husband, but licking his swollen tip soon leaves her panties soaked. When he can no longer hold back and shoots cum into her mouth, Hana loses her remaining restraint and gives herself over to him. He moves his hips far too well for a virgin and pounds her into repeated, convulsive orgasms. No matter how many times he cums, his cock keeps getting hard again until Hana is completely exhausted.