Her smile then is different, deeper, more sincere; that tinge of jealousy she hears pleases her. She wants that, petty as it may be. As he tugs, she's moved with the pressure before the corset gives, falling loose on her shoulders; she shrugs it off, then, letting fall to the floor, leaving the silk part of her dress looser and shimmering.

That's when she undoes the laces of his trousers, letting her fingers glance along the the skin of his belly. There is possession in that movement too. Hers.