Kris Jenner and her beau Corey Gamble looked pretty comfortable smiling next to Caitlyn Jenner at Kylie's birthday party

By Char Adams
Updated August 13, 2015 11:55 AM
Credit: Brian Prahl/Splash News

Who says you can’t be friends with your ex?

The Kardashian/Jenner clan was all smiles at Kylie Jenner’s birthday dinner on Sunday, including momager Kris Jenner, who posed in a selfie alongside her daughters, her boyfriend Corey Gamble and her former spouse Caitlyn Jenner.

Kris, 59, is seen in the photo cuddling up to Gamble, 34, who’s seated next to Caitlyn in a restaurant booth, along with Kim Kardashian West and Kourtney Kardashian.

Caitlyn and Kris were also seen hugging and taking selfies together at Kylie’s birthday party for the first time since Bruce’s transition to Caitlyn.

The crew may look like one big, happy family now, but it wasn’t always that way. Kris initially struggled with the news of Bruce’s transition to Caitlyn, and sources told PEOPLE in May that she relied on Gamble to help her cope.

“He makes her feel good about herself and her life,” the source said of the 34-year-old, who is a tour manager with Scooter Braun/SB Projects.

Kris has been linked to Gamble since October 2014, just one year after she and then-husband Bruce Jenner announced their split after more than 20 years of marriage.

The two had not been seen together in public since they announced their split, but Kris was spotted visiting Caitlyn’s Malibu home in July.

Kris previously discussed her ex-husband’s transition in the E! special Keeping Up with the Kardashians: About Bruce.

“I just miss Bruce,” she said. “And that’s going to take me a minute to mourn that relationship. You think you’re going to grow old with somebody, and they drastically change over the course of just a few years.”