Sucks that you have experienced that. For me, breast size is not that important. I'm focused on the overall package, if a woman has an overall nice body (I don't mind if a girl if a girl is a little chubby, though), small breasts are not an issue.
About intimacy. You are correct that a woman will often see a man's penis only when they are getting intimate with each other and that they usually have some type of relationship established at that point, as in, they are dating or something like that and penis size probably doesn't matter so much in that situation. Casual sex, however, is a dif