Don’t tell Thomas Shelby! Things appear to be heating up for “Peaky Blinders” star Annabelle Wallis and Coldplay singer Chris Martin. The pair was photographed embraced in a steamy kiss while in Paris over the weekend.

E! Online published a photo of the two lovebirds. However, the site notes, this is far from their first outing as a couple. Wallis, 31, and Martin, 38, first made headlines when they were spotted together in New York City in August. Whats notable is the public display of affection between the pair. The duo even playfully danced in the streets during their outing.

But don’t start spreading any engagement rumors just yet. According to People magazine, Wallis and Martin’s relationship isn’t that serious.

“He’s a nice guy, just having fun,” a source dished. “What woman wouldn’t like that.”

Prior to being linked to Wallis, Martin was dating “Hunger Games” star Jennifer Lawrence. The two, who were on-and-off for about a year, ended things for good by late August. An insider close to the singer revealed to People at the time that while Martin was “crazy about Jen,” he was more interested in keeping his own schedule.

“Chris doesn’t really want the relationship to end, but he needs to be flexible so he can see his family as much as possible with his own work schedule,” explained the source.

Lawrence was Martin’s first public relationship since his “conscious uncoupling” from Gwyneth Paltrow. After 11 years of marriage the pair separated in May 2013. This past April Paltrow officially filed for divorce.

Annabelle Wallis, on the other hand, has previously dated British model James Rousseau. The two were last linked in May 2014.