Whatever kind of look Tommy gave him, Bart didn't get it. He waved, and when Tommy ignored him and went on talking to Kara, Bart cocked his head to one side. Well, that wasn't nice, but it wasn't anything he wasn't already used to... so he just kept right on and proceeded with introductions.
"Tommy, this is Kara, my girlfriend." Bart said with a bit of a sheepish, shy smile at Kara (that was the first time he'd said that out loud), "Kara, this is Tommy. He uh..." Bart's brain ran through the things he could say about Tommy... he had super speed, he blew up a school, he'd been arrested, Bart taught him about the Speed Force... none of them seemed party appropriate so he settled on shrugging and not finishing that sentence.