Once upon a time, The Jonas Brothers ruled Disney Channel with hits like “S.O.S.” and, of course, Camp Rock. They weren’t the only siblings turned stars, though. In 2007, Aly & AJ had tweens singing along to “Potential Breakup Song” and “Like Whoa.”

The Michalka sisters recently visited BuzzFeed to play the Sisters Game, where they quizzed each other on life milestones. First kisses are obviously part of this.

“If you get this wrong, I’m going to kill you,” AJ warned. Aly expertly answered, “Joe Jonas.” Ding ding ding, we have a winner!

“No one knows he was my first kiss. I’m pretty sure I was his too,” AJ revealed. Well, looks like the secret’s finally out.

Turns out the chemicals reacted when the JoBros opened for Aly & AJ years ago. The friends were just hanging together at a bowling alley when the smooch happened.

“They opened for us when we were all like, 15, and so we started dating and we were together for a year,” AJ explained.

I mean, the hair in this photo. Precious.