Head checker with a giant tail! Can he do it?

I was once again rating some of my users cocks, as I regularly get cock pictures sent to me. I always get extremely horny and wet and think directly about fucking. My flatmate, who is a real show-off, came into the room and caught me. Of course, he immediately started bragging that he had the best and longest cock anyway... I wanted to try it out this time. I absolutely had to check whether he was just talking or whether he really was as horny as he always claimed...