Is One Direction's Niall Horan Dating A Victoria's Secret Model?

Horan was spotted in London with Barbara Palvin on Sunday.

While Harry Styles and Kendall Jenner keep fans guessing about their romantic status, more romance rumors are flying out of One Direction. According to the latest gossip, Niall Horan might be the latest 1D heartthrob off the market.

Horan was photographed leaving a party with Victoria's Secret model, Barbara Palvin, over the weekend. According to The Daily Mail, they left an "X Factor" U.K. wrap party Sunday night at London's Marylebone One club. The band had performed on the show earlier that night.

The U.K. paper further reports that Horan and Palvin, both 20, met earlier this year while the band was in the U.S.

This isn't the first time they have been spotted together. They reportedly played golf together at Top Golf center in Hertfordshire on December 13, one day after she tweeted about heading to London. They also reportedly caught a screening of "The Hunger Games: Catching Fire" in London last month.

"He's getting to know her," a source told Us Weekly about the rumored couple. "The guys have a few months off so they're having a good time before he goes back on tour. He plans on being home for the holidays. She's a nice girl!" However, a rep for the group tells E! News that they are just friends.

Horan, who was romantically attached to Demi Lovato last year, recently revealed on "Good Morning America" last month that he is single, as did Harry. The Hungarian VS model became the subject of rumors when her name was attached to Justin Bieber's in November 2012 after his initial split from Selena Gomez.