Doesn't it sort of depend on the person?
Incidentally, there is a Japanese women's college near my house. Around 300 Japanese English majors, senors who are finishing up their final year of school. As part of their "American experience," they spend a weekend with an American family, always in pairs. We've hosted many of them in our home, and in exchange get to attend their graduation ceremonies, followed by a dinner. They really know how to throw a party!
I've notice is that none of these young ladies--none--is the least bit overweight. All are well dressed and well mannered.