Lick your fingers and start rubbing them over your asshole. As you do this, begin to moan as your pleasure the rim of your hole.
Keep teasing the rim of your asshole for a couple of minutes, but don't slip your fingers inside your ass. Instead, just keep rubbing your most private hole. Try to bring yourself to an edge just by playing with the outside of your asshole.
Really get into it. Rub that hole! Feel the electricity that shoots through your body as your hole is stimulated by your own hand.