Two mischievous kids, fascinated by erotic things, are captivated by the massive breasts of their classmate's mother, Ruri. To blackmail her, they start secretly filming her. They capture Ruri performing fellatio on her lover at home and use this footage to coerce her into sex. Breast groping, cunnilingus, fellatio, vibrator torture... Their pranks escalate. Blindfolded, Ruri gives head to her son's dick and gets fucked. When she removes the blindfold, she realizes it's her son and is shocked. However, overcome by pleasure, she accepts her son's dick. Summoned, the lover joins in a gangbang with the two, ravaging the body of the busty housewife...
