"Do you like this body? It's so sexy, right? Long limbs, big breasts, flawless skin. It's so perfect. And it can be you.
No, not 'yours', you. It needs a face, come over here, give it a kiss. Join with it, and join me and my sisters as secret display pieces.
Yes, I've done this too. I was a mousy little thing, now I'm sex on legs. Sure, my legs open for whoever pays my owner, and I spend most of my time in a window, but it's a small price to pay for perfection.
Oh, honey, no. You're not renting me, I'm sure I'd love feeling your cock inside me, but we mannequins can tell if we're talking to a client or a sister. So come claim your new body, and leave your past behind."