A half-second's pause, and then her head tosses back in a peal of delighted laughter, the sound looping up and outward like a fountain.

Her hand goes to the vee of her neckline and the concealed pocket there. He's watching, so she makes just a little stage business of drawing out the key slowly before tossing it to him.

"I wondered when you'd notice." Teasing; not quite challenging. Nothing even close to apologetic.