'X-Men: Days Of Future Past' co-stars Jennifer Lawrence and Nicholas Hoult arrived together for the film's private wrap party this weekend, adding fuel to the fire that the former couple is back together.

They split earlier this year, but in April, they were spotted having lunch together, and last month, sources said they'd officially reunited.

“They started the shoot in April as friends, and then one day they just started kissing,” an insider revealed. “One thing led to another and they hooked up. All her old feelings came rushing back. Now they’re fully back on.”

“Jennifer has been telling people that she’s in love again!” the source added.

Jennifer and Nicholas originally got together during the filming of 2011's ‘X-Men: First Class’ (she plays a young Mystique and he plays baby Beast in the franchise) and were together for about two years before parting ways.

Still, since she once described him as her "best friend" and the person who makes her "laugh harder than anybody," we kind of hope the rumors about them being back together are true. Even if we are a little jealous.