The singer, 26, locked lips with model Jessica Serfaty, 24, during their Sunday on the slopes in popular ski destination Mammoth Lakes, California.
A source tells PEOPLE that Jonas and Serfaty "are dating" but that "it's nothing serious yet." She also joined Jonas over the holidays in Vegas and met through a mutual friend.
Serfaty – who made a name for herself on America's Next Top Model in 2010 and shares a son with her ex-husband – donned a white and tan ensemble, while the former Disney star was primed for high-speed action in full-on black gear.
Despite being surrounded by a group of people, Jonas and Serfaty weren't shy about leaning in for a sweet kiss in the winter wonderland.
The cute outing marks the first time Jonas has been romantically linked following his split with Gigi Hadid this past fall. (The model has since moved on with former One Direction singer Zayn Malik.)
It's been real Mammoth pic.twitter.com/5cmbvCviwK— Jessica Serfaty (@JessicaSerfaty) January 5, 2016
The DNCE frontman isn't the only Jonas brother who has had fun in Mammoth Lakes – on Sunday, his brother Nick Jonas sparked new romance speculation on a casual day out with Kate Hudson.