Draco followed Harry into the room, smiling fondly at him. The meaning of having access to Harry's room wasn't lost on him, but he didn't want to make a big deal out of it and scare Harry off. After all, it could be that Harry himself didn't fully realize the trust he was putting it Draco. Or, while he probably did, he might not realize what a big step that was. A big step for Harry, at any rate. Draco knew how little he trusted anyone but Weasley and Granger.
"I'll take whatever you've got that won't have me drooling in your lap in ten minutes. Unless that's the plan, in which case I'll drink whatever you're drinking."