While their parents are away, the younger brother takes control of his sister-in-law's weakness and plants an aphrodisiac on her. In addition, he uses "study desks," "chairs," "tables," etc. Treated like human furniture... the drug takes effect and her sensitivity soars! A vibrator is thrust into her throbbing pussy and she is forcibly fixed in place! She is not allowed to move and squirts! The sister, who has completely lost her senses, falls into incestuous sex while being treated like an object by her brother!