Jack Antonoff can't wait to have kids with Lena Dunham.
The fun. guitarist has been dating Lena since 2012, and the pair are often spotted looking loved up at showbiz events.
While they're not ready to have children just yet, Jack says it'd definitely on their future agenda.
“It just seems like the most fun thing in the world. I’ve never met people who have kids who haven’t looked me in the eye and been like, ‘It’s the greatest thing that’s ever happened.’
"I think it’s biological. I’m 30. I’m not that young, right? I’m not, like, 24 or 22. I’m no longer in the phase of my life where I talk about everything as in the future. Like, I’m in the future," he laughed to Vulture.
While the thought of children may be occupying his mind, marriage isn't something he's so fussed about.
Girls superstar Lena, 28, has stated in the past that she won't marry until same-sex marriage is entirely legalised in America, but Jack says for him it's just a timing issue.
"It’s hard to imagine when the right time is because things are so crazy at the moment,” he admitted.
As well as penning his own tracks, Jack is also behind some of pop's biggest anthems including Taylor Swift's Sweeter Than Fiction. It was reported earlier this year that Taylor was after a role in Lena's hit show Girls, and Jack definitely vouches for the country singer.
"It’s pretty easy to tell who’s garbage and who’s not right away, and most people suck, to be honest, or they’re just really wrapped up in what’s going on with themselves. And Taylor’s truly the nicest, most interesting person that I’ve met in that circle… I think she’s a modern Joni Mitchell, I really do," he gushed.
But there's one music star Jack won't be collaborating with any time soon; pop bad boy Justin Bieber.
“You couldn’t pay me [to hang out with him],” Jack declared.