The chemistry was undeniable between Nicholas Hoult and Jennifer Lawrence over the weekend at Comic-Con 2013. The actress recently reunited with her ex-boyfriend after rekindling their romance on the set of the latest flick together, "X-Men: Days of Future Past."

The two headed to San Diego, California to sit on a panel and promote their film. There has been much speculation surrounding the couple as they have been spotted together both off and on set of their Montreal based movie.

Lawrence started off her time at Comic-Con promoting the "Hunger Games" franchise along with co-stars Liam Hemsworth and Josh Hutcherson. According to the Daily Mail, she wore a midriff baring Proenza Schouler ensemble as she posed for the camera.

The Oscar Award winning actress then slipped into an all-white body hugging Alexander McQueen mini-dress to join her boyfriend and the rest of the "X-Men" cast for their time on the panel.

The couple was not shy about staying next to each other, not only did they sit together on their film's panel but they also were side by side while in the audience of the convention.

[To see photos of Jennifer Lawrence and Nicholas Hoult togethere at Comic-Con 2013 click HERE]

The Daily Mail reported that the two chatted playfully as they ran through the motions, divulging details about the latest film in the "X-Men" franchise. The two even embraced one another as they stood to receive applause from the crowd with the actor holding tight to his girlfriend's waist.

Rumors that the couple got back together started in April when they were spotted grabbing dinner together in West Hollywood. When shooting of "X-Men: Days of Future Past" begun in June the two were inseparable on and off of set and were even spotted spend a day out with the actress' family.

As of last week reports began to surface that the two stars are officially back together. A source told Us Weekly that, "They started the shoot in April as friends, and then one day they just started kissing."

The source went on to say, "One thing led to another and they hooked up. All her old feelings came rushing back. Now they're fully back on."

According to the magazine, the actress has been gushing to others about how happy she is about getting back with Hoult, an insider said, "Jennifer has been telling people that she's in love again!"

The couple split in January after distance (she is based in Los Angeles and he is based in the United Kingdom) troubled their relationship. Just before the split in December she told Elle some of her favorite things about her relationship with the British hunk.

According to Us Weekly, Lawrence described Hoult as her "best friend," she said, "He is honestly my best friend, and hopefully I'm his best friend too."

She told the magazine. "He's my favorite person to be around and he makes me laugh harder than anybody."

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