I sucked off a guy with a cock just like that. A whopper. I swirled my tongue around the inside of his foreskin on every upstroke. The feeling on my tongue was incredible and when he blew I just swallowed it. He was nice enough to suck me off too. So I let him fuck me (with a condom). It was awesome. I love big uncut cocks. And decent guys who reciprocate.