I have to say I am a bit of a size queen and an attractive cock to me is clean,smooth and Big, with a nice pair of balls. Although I wouldnt mind too much if the guy was small or average. It is a nice surprise when you are with a guy for the first time and you find out he's got a big one.A perfect size is 8 inches long and about 6 inches around. of course the fact he's a nice guy is the most important thing.