Yes, he's got the most gorgeous girlfriend on the planet, but there's another new woman in his life too--his niece, Alena Rose, who was born earlier this year.
While we're excited for new parents Kevin and Danielle Jonas, we also couldn't wait to find out how Nick and Joe felt about their new role as uncles.
Nick told E! News at the recent Vanity Fair and Fiat Celebrate Young Hollywood event, "It's great. It's an immediate responsibility and love for someone that you're going to watch grow up, which is beautiful and I'm just so excited to watch her do that."
Yeah, our hearts just melted.