Mother and son Nozomi Tanihara having sex in 2 seconds when my father goes out

Nozomi Tanihara plays a mother who engages in an incestuous relationship with her son, Xiao Dun. The son fucks his mother while his father is away, performing various sexual acts including oral sex and intercourse. This taboo scenario involves a significant age gap and familial relationship, making it a classic example of an incest-themed movie featuring a mother-son relationship.