Mate, your question somewhat shows your inexperience in shopping
for such stuff. Look at it this way, if I shop for perfumes, does
it mean I'm gay? I'd naturally ask a salesgirl about it, right?
You'll be surprised how friendly they can be when you ask them
about lingerie. Trust me, it's their job to answer such questions.
And of course, it's the way you ask them.
Bring it on!!