I really want my girlfriend to peg me, but my ass is too tight, so I'm working on training it to take this nice big blue dildo nice and easy so I can experience a good fucking. I bounce on it for a bit, but find it isn't going in smoothly, so I lay on my back and try. Slowly pushing it in, keeping constant pressure. As soon as it pokes my prostate I erupt in orgasm, cumming all over myself.