If he doesn't want to say anything that is completely within parameters!

Her dorm is a six-minute walk away from the elemental barracks. She flicks the door open - it's a mage student dorm, this is their idea of security is having a door you have to flick to open - and leads him up the stairs to a second-floor single occupancy. It's tiny. She closes the door once he's inside, and closes the shutters so it's dark enough to do dark scrying, and sits on her bed.

Despite her warning, she has exerted no implicit control on him during the entire trip.