Jennifer Lopez and Ben Affleck have shocked their fans in recent weeks by rekindling their romance seventeen years after they called off their engagement in front of the entire world. Over the weekend, they celebrated Lopez’s 52nd birthday on a yacht in the South of France as their romance heats up.

“[Lopez] is accepting the gift of happiness at this stage in her life and the love she and Ben share is icing on a delicious cake,” a source told Fox News. “Jennifer is happy and appreciative that into her 50s she can still do what she loves doing – which today, allows her to feel younger given her overall approach to health consciousness and the fact she keeps herself very active. She has health and family which is all she needs to make herself whole.”

Another insider told E! News that Affleck could not keep his hands off Lopez on the yacht.

“They held hands, they hugged each other close and they kissed,” said this source. “They sailed around from Monaco and went to St. Tropez. Ben and JLo spent time laying out on the top deck and making out. They couldn’t get enough of each other.”

Affleck and Lopez spent Saturday night partying in France at the L’Opera. Fashion blogger Rebel Neda, who was there as well, said that the couple arrived at around 9pm w ith four people, including two bodyguards and a personal photographer.

“They were all drinking and being happy, kissing all the time and super in love. They were very friendly and the Opera shop gave them two bags of presents from the artist Philip Shagnti collection,” Neda said. “Opera is a very professional and crazy place at the same time and Ben and JLO felt very comfortable and had the time of their life with the crazy personal birthday show that Opera gave them. They got a lot of attention but they loved it.”

“I don’t know exactly how many people there were but a lot! And they all enjoyed it,” Neda added. “They stayed until the closing time 3:00 [a.m.].”

Lopez’s ex-fiance Alex Rodriguez, who she broke up with back in April, was in the South of France on a yacht as well over the weekend. Another source explained that “before they broke up, J.Lo and A-Rod had planned a trip together to the French Rivera for her birthday. Ultimately, he decided not to change his plans and still go—and she also decided to keep her trip but go with Ben, which is why they’re all there right now.”