Tits aren't a one size fits all thing. Some girls look good with small breasts, others with large, and it's not even how heavy she is sometimes, I don't think. The one thing on a girls body that bothers me, however, is, well, I don't know the actual term for it, so let's call it an outie.
If I like her, I can deal with it, but I ain't going down on it.
Call it shallow, it's not even a thought process, I am just completely turned off by the sight of it.
I'm obviously not going to express my opinions about this to the girl, because what can she do about it? It's not her fault or anything. And it's not even like it's a functional difference. Just wierds me out.