Asking someone directly, "Voulez-vous coucher avec moi?" if you're only trying to flirt will come across as immature.
Pour Moi: If you like the look of minimizer bras but you wouldn't wear one on date night, you'll want to check out what Pour Moi has to offer.
A Pour Moi bra can be found in satin, for example, and in silk if you are lucky.
Two of the styles you should be sure to check out while you're there are the Pour Moi? and the Fantasie.
If you're a stickler for natural fabrics in your lingerie, Moi Original is for you.