One day, a adorable mother of fifty years old spends her ordinary life, and encounters a son who indulges in masturbation. It is uplifted to the full-bodied Ji-ko who has not seen it for a long time, sticks out a big butt and licks and sucks Ji-ko. Fifty mother who aches with hot lust shakes her huge ass and indulges in masturbation violently. The son, who has a distorted excitement for such a mother's foolery, devoured a ripe mako to satisfy her mother's desires. Finally, a fifty mother and son are tied together with forbidden love. My mother violently shakes her ripe big butt and rejoices in fellowship!