[ Comprehension seems to dawn on his face, like a light going on in a dark room, and Jack leans back slightly, his mouth forming an oh. ]

Now I see.

[ He pauses a beat, then smiles understandingly. ]

You're afraid you won't be able to resist...well. I totally get it. Not many can resist my good looks and natural charm, but don't worry! I have enough self control for both of us.