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Neil Patrick Harris and his partner David Burtka sat down with Oprah to discuss their journey as a same-sex couple in Oprah's Next Chapter, and NPH tells Lady O that he knew he was gay way before he was even a teen.

"Probably six, seven – young," says Neil about first knowing that he was gay.

Video: Oprah's Aha! Moment with NPH & David Burtka

The parents of 18-month-old twins Gideon Scott and Harper Grace also talk about dating women, and Neil laughs, "Good times," then adds, "I did feel like it wasn't clicking like it was supposed to, and kept wondering, was it me?"

Video: Gaga on 'Oprah's Next Chapter'

Watch the entire exclusive interview on Oprah's Next Chapter, airing June 3 on OWN.