Seriously! Try it! Get down on your hands and knees, slip your cock between your thighs and go at your own ass hole! I can't really fit more than the head in my own ass, but good lord does it feel amazing. Its one of my favourite ways to settle down for the evening and get myself off. I'm not flexible enough to suck myself but I can sure as hell fuck myself! Best part? Anyone ever says "Go fuck yourself" you can confidently, with your head held high, say "I did, and it felt amazing!"