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Thinking of buying some sexy lingerie for your sweetheart this Valentine's Day? You old Casanova, you.

Before you head out to the mall, take a moment for some advice from Dita Von Teese, an expert in all things underthings.

"I can honestly say I've never had a man buy me lingerie, because I've always … I've been very specific about what kind of lingerie I like," she tells FNM in our exclusive video interview above."I believe in beating him to it, and already having beautiful lingerie. That way, we have an opportunity to choose what makes us feel good about ourselves."

But if you simply must purchase something for your lady, Dita says it's imperative you know what she likes.

"I usually tell them to look in the lingerie drawer, or even steal a piece and bring it in to the salesgirl," she suggests.

And as for ladies on the receiving end of any lacy unmentionables, make sure you're comfortable in what you wear.

"I think it's really about … wearing it because you love it, not because you're trying toplease someone else," Von Teese reiterates.

For more advice, be sure to check out our full interview with Dita in the video above.