Talk about keeping your exes close!

Caitlyn Jenner grabbed lunch with son Brandon in Malibu yesterday, and we couldn't help but notice the fact that the transgender star has a Kris Jenner iPhone case!

Most people wouldn't want to be reminded of their ex-wife, but we guess Cait doesn't mind. Either that, or she looks at it like a joke? Any way you slice it, it's weird. If you'd like one, too, they're available on Kylie Jenner's online shop for only $15!

Rumor has it the former spouses have called a truce, and it's all based on money. The Olympian wants to do another reality show surrounding her LGBTQ activism, and she needs the momager's help and connections.

"Caitlyn has been encouraged to pitch the show to Bravo and E! and she wants the process to go smoothy. She knows that Kris could be a huge asset and they both have clauses that they will not slander one another.Any inclusion of Kris and her family in the show could be very lucrative for both parties," a source dished to Radar.

Caitlyn already pissed off the Kardashian matriarch enough with her memoir, she might not want to mock her with merch!