I think there are a lot of fators that contribute to "getting laid," including personality, and size varies a lot as well. My buddies are all quite a bit smaller than I, and generally got laid more than I. I think that some women really like larger sized guys, but most are not that into it. In fact, I have often had women so no. Even curiosity seekers will think twice sometimes. I think that size has bomes a mystic wihtout a basis in fact.
I would guess that how much bigger is also a factor. Guys in the 8-9 range probably do better than guys in the 10+ range, so there may be a "cut off" size where interest in sex drops off. I just know from my experience and from chatting with my friends and folks here.
The debate rages on,
Jack