No, I don't think we have.

( unless memory shenanigans happened again, but billy doubts that's the case--here. it's not the time nor the place for any of this, but. they're already talking, it'd make even less sense not to introduce himself, wouldn't it. with a hesitant smile on his lips, billy extends out a hand, offers it to her. )

I'm William Kaplan--Billy. A Young Avenger, back home. I don't think your side of the multiverse has my team--yet, at least.