Masturbation in the School

Once I remained in the school. I will masturbate but I have no place. I think my classroom is good. My friends were going home. I went to the classroom and closed the door. I sat on the floor. After I take off my shirt and my underwear, I began to masturbate. The orgasm came after 7 minutes. I have no handkerchief, but I have found a shirt that belongs to one of my friends. I pump the sperm in this.

It was really beautiful for me.