Bra yes, panties no...not unless its month-end. Most time people don't know, but there are some dresses where it's just too obvious and my friends squeal a bit. And sometimes when I get changed at swimming I get strange looks when I get dressed. Boys love it, especially when they find out for the first time...and I am guilty of giving occasional sneak previews when I go out. Some boyfriends love it, they love the easy access to their prize, but some think it means I'm too easy, they don't like it, don't think its proper. Can't change me though, I like the feel of nothing there.