Mirror, Mirror

This is a hands free technique. You need to have a full length mirror mounted on a closed door to do it. Grease the underside of your cock with lube or spit and rub against the mirror while holding on to each side of the door frame. Don't go up tight to the mirror just that sweet spot on the underside. It will take a while but when you finally shoot it looks like you're rubbing up against another guy and you are both shooting on each other's cocks at the same time.