Maybe this should be in general chat, but I thought I'd try feminist chat first
I genuinely don't consider my breasts at all sexual or embarrassing, however I am a total english prude about "full" nudity. To me a chest is a chest, regardless of whether it has lumps or not, the only thing stopping me walking around shirtless are that I'd be the only one and I'd probably get cold! 
Do you consider you breasts a private part of your body, or a "standard" part like a belly or back (ie not usually in view, but not intrinsically private or sexual)?