Things are heating up between Nikki Bella and Artem Chigvintsev, and we're not talking about the dance floor! Following reports that the 35-year-old WWE wrestler had moved on [1] with her former 36-year-old Dancing With the Stars [2] partner after her split from John Cena [3], the two were spotted on a PDA-filled lunch date at LA's Joan's on Third on Sunday. Nikki and Artem looked smitten as they walked arm in arm, and once inside, they were caught sneaking in a sweet kiss. Sundays are for lovers, right?

Rumours of a romance between Nikki and Artem first began swirling in December after the two were seen together [4] over Christmas weekend. While the two continue to play coy about their relationship status, the DWTS pro recently made a cameo on Nikki's Total Bellas show and he appeared on her Instagram Live [5] over the weekend. "I have a special guest who had a really fun Sunday fun day with me," she said in the video. So, was this Nikki's way of confirming her romance with Artem? We'll let you decide.