Scooter Braun is dancing with, dipping, and makin’ out with Sydney Sweeneyin his PDA-filled birthday post dedicated to his girlfriend’s big day … and his note to her is even sweeter.

Filming in front of what appears to be Avignon’s Palace of the Popes in the South of France … the music mogul and “Euphoria” actress — who turns 29 today — danced to Mitski‘s “My Love Mine All Mine” in his Instagram post that he uploaded Saturday.

Scooter wrote in the caption … “You make me smile harder, laugh louder, adventure more, and dream bigger. You’ve made the ordinary feel exciting and the future feel like something I can’t wait to get to.”

Adding that her “giggle can change an entire day” … Scooter admitted he loves “how corny we can be together, because nothing else matters. There are a million things I could say, but the ones that matter most are just for you.” And yes, he even used the L-word!!! 👀

His sweet birthday message comes as the couple seemingly have gotten even more serious … as we reported, Sydney has been spending more time with Scooter’s kids in recent weeks.

The two also jetted off to Venice to flaunt their amore last week … taking a boat ride down the canal together.