Yes i Am a guy and i get turned on when i shove my clenched fist up my clenched asshole. I have been doing this since 3rd grade (sorry Kierstin) I am now currently 17 years young and my asshole has a circumference of about 14 inches from constantly shoving my fist (sometimes both) up my ass. Sometimes I even sit on my gear shift in my car. I once even tried to shove my dick in there, but ended in the hospital, so instead i made a dildo of my own dick (5inches). One time my friend ryan came in my ass and i got gohnneria.