It looks as though Jake Gyllenhaal's rumoured romance has just gone public. The Donnie Darko star, 34, was first suggested to be stepping out with Luther actress Ruth Wilson as far back as December, but the pair denied the Tinseltown talk at the time. It might be harder to shake off the whispers now though, as the pair were spotted sharing a kiss in New York over the weekend, after leaving a fitness class. According to E! News, the stars took a 10.20 a.m. class at Barry's Bootcamp, after which "Jake lingered by the lobby area while he waited for her to shower and change." The source continued: "When Ruth came out, they kissed each other goodbye before parting ways." "It was more than a peck on the lips between friends. This was a kiss that said, 'We're Dating.'" Gyllenhaal and Wilson met when cast together in the Broadway production Constellations. Ruth said in January: "He's adorable, a really good guy." "We've become like brother and sister a little bit. We spend so much time together. We trust that even if we have a little disagreement - which is going to happen because we're in a tense environment that demands a lot from us - we'll make up and we'll be fine. I trust him implicitly."

Jake had also been rumoured to be seeing his Southpaw co-star Rachel McAdams but recently told TV chat show host Ellen Degeneres he was single.