Fuyumi (65) returns home from shopping and catches her son Wataru wearing her underwear and crossdressing. Shocked, Fuyumi decides to stop his habit by dressing up herself and pleasuring Wataru's cock. But overwhelmed by arousal, she can't resist when Wataru demands penetration, surrendering to pleasure regardless of age. Her body responds instantly, gushing lubrication at the touch of his cock and repeatedly losing consciousness in ecstasy.