I don't find the picture offensive (and I am a bit of a prude, and don't mind being called one

), but I do agree there are cultural differences to what is acceptable regarding an exposed breast. I do think in this country they are more sexualized, and I think the fact that they are sort of a "taboo" thing just makes them more so.
As far as the lump of fat thing, I have to agree with Miss Jasmine on that one, perhaps because I don't have any "lumps".

I guess the only men that would be interested in me would be gay.

I'll be sure to fill DH in on his sexual orientation. I wonder how we have a child?

Every woman has the same amount of tissue for breastfeeding, the rest of the difference IS just fat. Not all women find the area sensitive, and not all men find that part of the body such a big deal. I don't see the reason for calling anyone frigid over that.