A son who wears a chastity belt to force his mother to abstain from the abstinence of his own

My son fell in love with his mother Yu. As a woman, she is filled with a distorted desire to make her own, and she begins to go wild. "From today, I will manage my mother's sexual desire." Following her instincts, the son, who has been attacked by his gentle attack, forces him to attach his chastity belt and attempts to control his body. Although he was confused by his son's actions, Yu desperately resisted, but gradually he couldn't control the ache in his body...