My student Nanaka Kosaka suddenly came to my house. When I heard her story, it seemed that she had a fight with her parents, and her anger was not subsiding. Just then, I got a call from her parents. Nanaka touched my crotch and said, "Don't tell anyone!" While I was on the phone with my parents, Nanaka grabbed my erect penis and didn't let go, her face saying, "You can do naughty things, but keep it a secret." I gave in to temptation and decided to let her stay at my house in exchange for a blowjob and sex...