Riho Fujimori, a 31-year-old masochistic married woman, seeks pleasures she cannot get from her husband by indulging in taboo daytime affairs with a sadistic casual lover. Her passion ignites through humiliating acts, repeatedly climaxing from forced masturbation. She eagerly takes a huge cock deep into her throat, is bound in the M-position and brought to orgasm with dildos and vibrators, then wears a collar and crawls on all fours to heighten her arousal. Her lover's erect cock is forcefully thrust into her uterus, engulfing her in the ecstasy of a threesome, as creampie after creampie fills her womb through creampie, doggystyle, and relentless piston thrusts, driving her into intense, mind-blowing orgasms.