At her question if that was an invitation he gave a small shrug and glanced at her with half hooded eyes, "...maybe. You want it to be?" Normally he wasn't so forward, but he was buzzed and horny as hell.
He wanted her and she probably wanted him. In high school she wanted him like a small handful of the girls in his class did. So she probably wanted him now. She probably was having a mini fit inside, finally getting what she had fantasized over for those four long years.