"You can't find the catch because there isn't one. This little key is the only way of undoing those straps. You enjoyed fucking me wearing stockings and heels and I've always known about this little fetish of yours; so I think its time we explore it fully, don't you? I've booked you into my beauty salon, then we'll go shopping for some nice clothes. If you make it fun for us both then we might do it often ... and I might let you take those heels off."