I haven't been with near as many as I have women, but hands down, the best cock I've ever had was a 65 year old man. Not only was he hung (8" fat beercan cock and big mushroom head), but he stayed rock hard and was verbally dominant while getting blown, which turned me on immensely ("TAKE IT INTO YOUR THROAT OR NO CUM FOR YOU, SON!"). I could feel his cock start to spasm in my throat when I instantly felt his balls explode, tasting his thick, tart, mega-load as it began flooding my mouth and throat, a big glob of cum actually running out of my nostril in fact, and although I swallowed every drop I could, ribbons of his thick, tangy, ball cream running down my cheeks, which I tried to catch in my fingers so I didn't miss anymore in my belly than necessary. I don't receive anal, but I did then get on all fours and he began rimming my tight puckered asshole while stroking my hardening cock. It felt so good, had he ignored my refusal to do anal and began fucking my cherry, I was still so horny I would have probably just let him fuck me, as long as I could suck too!