"Sperm donation" is a service where ordinary men provide sperm for couples struggling with fertility. This time, a couple married for two years appears. While the husband seems reluctant, the wife persuades him and proceeds to direct sexual intercourse with the donor. What begins as preparatory massage soon ignites intense desire, escalating their lust beyond control. Eventually acting on her own impulse, she engages in passionate sex, gushing creampie after creampie, transforming into a shameless, lust-driven woman surrendering completely to her primal instincts.