Spread Pictures

Selena Gomez and her new man Tommy Chiabra celebrated her 22nd birthday in St. Tropez last night, and we're not sure if the two are falling head over heels or if she's just using him to make former flame Justin Bieber jealous, but they couldn't keep their hands off of each other!

After jet skiing and soaking up the sun on a pals yacht earlier in the day, the duo and some pals went to dinner in town, and Selena looked smokin' hot in short printed dress and stilettos. And we love the fact that Tommy is a little bit older -- it's time for her to stop going after the boys and start dating men! (He's 28 and founder of Royal Yacht Supplies -- not sure if he has as much dough as Bieber, but he's definitely a legit businessman!)

Tommy was previously linked to 29-year-old Gossip Girl Jessica Szohr (and by that we mean they took a romantic trip together just four weeks ago!), and before that he dated 28-year-old model/dancer Nina Senicar. But is this just summer vacay love? And will Selena run back into Bieber's tatted up arms when she comes back to Los Angeles? Or could things get series with the Mr. Chiabra?

Selena also Instagrammed the sexy snapshot below with her girls and wrote, "Thank you SO much for my birthday wishes ... this has been the BEST birthday yet! THANK YOU!!!!"