Mother's best friend

Apparently, Yuta, the son of his best friend, is not improving his grades. Eri was asked to be worried that she was a student taking the exam and would be studying properly. Eri, who has decided to give up on the ground for her best friend, immediately visits Yuta's room... What I saw there was Yuta masturbating with all her heart. Thinking that if she satisfies her naughty desires, she will be able to concentrate on her studies, Eri promises, "If she works hard, I'll have sex with you."