Yuichi wonders if his parents suddenly became brother and sister when they remarried. Rika is shy and quiet, but he is actually sadistic. Yuichi intuitively thinks that he is a masochist, so he trains her to be his own toy. Upskirt footjob at his parents' house. I stole his mother's attention and gave him a blowjob. He uses it as a masturbation toy and sits on his face and makes him lick it. Then she calls her best friend to tease her brother and shows his brother having sex with her boyfriend!
