It's safe to say that Hot Girl Summer is fully in effect for Jennifer Lopez.

The "Waiting for Tonight" singer and Ben Affleck were caught in a PDA session at Nobu in Malibu on Sunday during her sister Lynda Lopez's 50th birthday party. In photos (and video) obtained by Page Six, which you can see here, Lopez and Affleck were photographed—for lack of a better term—fully making out, without a care in the world about who was watching.

Lopez appeared to be dressed casually for the occasion, wearing her hair in a slicked-back ponytail and sporting her signature oversized hoop earrings and neutral glam makeup. In another image, Affleck can be seen leaning in to Lopez and whispering in her ear. Translation: It's all pretty hot.

The new images of the pair come after Affleck was seen spending time with Lopez's mother, Guadalupe Rodriguez, last week at the Wynn hotel in Las Vegas, where he's directing a new project. (Rodriguez was there filming her cameo.) According to People, Lopez's mom is thrilled that her daughter and Affleck have romantically reunited.

"In the past, Jennifer's mom and Ben were very close," a source previously told People. "Guadalupe loved Ben. She was sad when they couldn't work things out years ago. She is thrilled that they are back together now."

The insider added, "Jennifer is very close with her mom. It's very important to her that the person she is with, gets along with her mom. Jennifer loves that Ben and Guadalupe hung out in Las Vegas. They both love gambling and had fun together at the Wynn hotel."

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Bianca Betancourt
Culture Editor

Bianca Betancourt is the culture editor at HarpersBAZAAR.com, where she covers all things film, TV, music, and more. When she's not writing, she loves impulsively baking a batch of cookies, re-listening to the same early-2000s pop playlist, and stalking Mariah Carey's Twitter feed.