“They’re good kids. We’ve done a good job. You know, you put the work in and you get it back, you know?” Burtka supplied.

Harris shared a birthday post for his kids on Instagram recently, writing in the caption, “And, just like that, they’re teenagers.

“Happy birthday, Harper and Gideon. You are the lights of my life. I can’t wait to watch you want nothing to do with me, and I promise I’ll be with you through all of it. Just, wow.”

While Harris maintains that he has no interest in finding out which twin is biologically his, there are some detectives online who are trying to figure out which twin belongs to whom.