Masturbating with Roommates (no not like that) | Her Campus. 13-year-old masturbating three times a day | Health24. My First Time Having Sex at College - Glamour. Man, 21, enters home of girl, 13, naked then masturbates in her. EOF. Teen Girls' Most Embarrassing Stories - Seventeen. Up to 16 'doggers' seen pleasuring themselves while watching. It’s more than a little terrifying what teen..