Female body builders frighten me... but if I may make a suggestion... do both. I think a lot of people who are looking for more realism will want a flatter chest... that's what happens to most women when they start building up msucle, they burn more fat, and that's essentially what the breasts are... but then you'll have those who are going to want a more comic book-ish muscled woman, who are almost always well endowed. It'd be nice to see varying degrees actually... though, please don't make them look like torpedoes... eep!