dude, i silent submarine sexed sarah last week after you passed out on the couch, or me and sarah had silent submarine sex on the floor while you guys were playing monopoly
the act of performing a sexual act while one or more people are in the same room
"dude, i silent submarine sexed sarah last week after you passed out on the couch, or me and sarah had silent submarine sex on the floor while you guys were playing monopoly" What is the definition of "silent submarine sex"?