Jennifer Lopez has made her rekindled romance with Ben Affleck Instagram official by posting a photo that shows them kissing to celebrate her 52nd birthday.

On Saturday Lopez posted a series of pictures from her birthday, including one of her kissing a man who appears to be Affleck, although she didn't tag him in the post.

"5 2 ... what it do ..." she captioned the Instagram photos, along with a heart emoji.

Image via Jennifer Lopez/Instagram

The rest of the photos show Lopez celebrating her birthday on what looks like a luxury yacht.

The music and film star also posted a video of her posing in a bikini and sheer kimono while a person off-camera encourage her to "give it to them".

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The couple also appeared together in a photo montage posted to Instagram by Lopez's friend Leah Remini to celebrate her 51st birthday party.

Lopez and Affleck posed with the actress in a photo booth pic.

Jennifer Lopez, Ben Affleck and Leah Remini, image via Leah Remini/Instagram

Lopez recently said she's "super happy" and having "the best time of my life" amid her rekindled romance with Affleck.

In an interview with Zane Lowe on Apple Music 1, she shared: "I'm super happy. I know people are always wondering. How are you? What's going on? Are you okay? This is it. I’ve never been better."

Without mentioning the actor and director by name, Lopez added: "And I love all the love that's coming my way right now and all of the, the good wishes. And I just want everybody to know that it’s the best time.

"It’s the best time of my life."

Ben Affleck and Jennifer Lopez pictured in Los Angeles on July 9

Lopez and Affleck had a high-profile relationship and short-lived engagement in 2002 and co-starred in the films Jersey Girl and Gigli.

However, they called off their 2003 wedding just days before they were set tie the knot, then officially split in January 2004.

They reportedly got back together earlier this year following Lopez's split from fiancé Alex Rodriguez.

Lopez and Affleck were spotted holidaying in Montana and were seen together outside her Los Angeles home in late April.

The couple were also photographed together in the Hamptons over the Fourth of July weekend.

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