Who needs the Iron Throne when you have a Jonas brother? Game of Thrones star Sophie Turner and her boyfriend Joe Jonas have been dating since November and things are getting serious.

Joe, 27, and Sophie, 21, are already practically living together, and sources reveal exclusively to Life & Style that the couple is already talking marriage.

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“Joe is ready to take this romance to the next level,” an insider reveals. “He hasn’t proposed yet, but they’ve been talking about it and it’s just a matter of time.”

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The DNCE lead singer has been turning to his bandmates for help coming up with the perfect proposal, but Joe doesn't want his famous brothers, Kevin, Nick, and Frankie, playing a major role in their wedding.

"Nick joked that he’d like to sing at the wedding, too, but Joe’s not so sure he wants to turn his big day into a full-blown concert,” the insider explains.

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In a recent interview, Sophie, who plays Sansa Stark on the HBO series, revealed that she wants to keep her relationship private but did admit that dating the former Disney Channel star was way easier than fighting White Walkers.

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“I found it easier to date someone who understands the industry or is in that world,” she told InStyle. "You realize that you’re not going to see each other all the time, and you don’t feel like a jerk when you’re like, ‘My publicist says I can’t do this … ‘"

So when can fans expect a wedding fit for a Westeros queen?

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“They’ve met each other’s parents, and the next big step is a walk down the aisle,” the source adds.

For more exclusive celebrity news, be sure to pick up the latest issue of Life & Style magazine, on newsstand now.

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