"Bartender's choice," he says, mostly because he's curious about what Jason will give him. Also, he hasn't actually had a lot to drink since hitting legal drinking age, given that it clashed with his pain management. Might as well be adventurous and see what his big brother gives him.

For all that Jason might be trying to not look too shocked or concerned, it's pretty obvious to someone who knows him, so Tim just gives him a resigned grin. "You can ask."