KSBJ-441 — "Mom, your nipples are sensitive, aren't they?" A stepmother who soothes her sexual frustrations with her husband by masturbating in the dressing room is blackmailed by her stepchild and f** into a forbidden incestuous descent into lust as her nipples are ravaged in the living room. - Terashima Shiho

Shiho, a mother-in-law, finds solace in masturbating her nipples in the dressing room to cope with her sexless marriage. However, her shut-in, unemployed stepson secretly watches her! He seizes her weakness, saying, "Mom, your nipples are sensitive, aren't they?" and, taking advantage of her husband's absence, forcibly pushes her down in the living room! His relentless torment of her nipples breaks her down, and in the end, she becomes a complete slut, begging for her son's cock in incestuous love!