Boobs or ass

So I’m going out with this guy again that I really like. We’re going to the movies and I know after the date we’ll probably have a little makeout sesh in his car again lol. I’m trying to figure out if I should wear a shirt that is low cut and gives him access to my boobs or wear leggings to make it easier to grab my ass. I know this is a matter of preference but I’m just so indecisive and need someone to help me choose (x cause there is no right or wrong way in going about it lol.

Oh and I can’t do both because the shirt I want to wear won’t look good with leggings lol.