"That girl's doing it again..." Saki was fed up with her son's constant masturbation. She knew it was inevitable because he was at that age, but she couldn't stand it if he treated her like a monkey every day. She finally resorted to the drastic measure of confiscating his smartphone. However, all the porn videos stored on the confiscated smartphone featured women of the same age as Saki... Right in front of her was a cock that was excited by a mature woman like her. When she found out about this, a forbidden desire began to grow within Saki.