Only I know... Secret guide with my friend's mother

Masato, who has been a single-parent family since he was a child, eventually began to have a love affair with his friend's mother, Yuri, which is similar to her longing... Masato, who was too lazy to have this feeling, was unable to tell anyone, so he finally consulted with the girlfriend he loved. Yuri teaches him to masturbate, saying, "I'll keep it a secret from anyone," and... Unable to contain his rationality at the first pleasure, Masato pushes Yuri down. Her body, which had not been connected to her husband for a long time, has been repeatedly orgasmed by his hard thrusts as he sniffs the vaginal walls violently.