Makoto ends up alone with his sister Yuna at a friend's house. Following Yuna's suggestion, they play a punishment game where the loser has to obey anything said by the winner, and Makoto loses. Yuna demands, "Become my personal chair." Makoto does as he is told and becomes a chair, getting an erection, which Yuna notices and starts insulting him. The next day, I was pushed by Yuna again and ended up having sex. She milked me dry with a squirt, and I fell into her hole.
