Kendall Jenner Gabs, Giggles With Rob Kardashian's Ex Rita Ora at Cannes Film Festival 2015: Photos

  Kendall Jenner Gabs, Giggles With Rob Kardashian's Ex Rita Ora at Cannes Film Festival 2015: Pho 
Kan't deal with this!Rob Kardashian may need to have a stern talking to with his younger half-sister Kendall Jenner. The model was caught gabbing with his famous ex Rita Ora during the 2015 Cannes Film Festival on Thursday, May 21.
Jenner, 19, and theFifty Shades of Greyactress, 24, posed for photographs, giggled, and (gasp!) whispered to each other at the star-studded amfAR 22nd Cinema Against AIDS Gala event. Jenner bared her toned stomach in a sleeveless Calvin Klein purple gown. Ora, who was also seen mingling with Jake Gyllenhaal, wore a red ruched cocktail dress.

Ora began a feud of sorts with Jenner's reality family following her messy split from Kardashian in 2012 after nearly a year of dating. Kardashian claimed she cheated on him with "20 dudes" and slammed her via Twitter. exclusively revealed in December 2012 that Ora also cheated on Kardashian with Jonah Hill.

    Rita Ora and Kendall Jenner talked at amfAR's 22nd Cinema Against AIDS Gala on May 21, 2015

"I posted what I posted to keep myself from taking her back. Every time she messed up, I took her back for over a year now," Rob, 28, tweeted in his defense at the time. "I just had to do that to make her hate me."

Sister Khloe Kardashian added: "Rob just got out of a really weird relationship. They were actually together for about a year but Rob was never allowed to admit that they were actually an item. Because she's in the entertainment industry, she wanted to present herself to the world as a single girl."

Ora, however, saw the breakup differently. "I'm not going out with Rob. We were close for a while, but it didn't work because I was never there," she told Glamour UK in December 2012 of the distance. "I was like a ghost. I used to get so frustrated with myself and then wonder why I was angry, so I decided it was best to keep it friendly — especially at the moment, when there's so much going on." Ora, who also previously dated Calvin Harris, is now dating Tommy Hilfiger'sson Ricky Hil.

Aishwarya Rai Bachchan poses during a photocall for the film "Jazbaa" at the 68th Cannes Film Festival in Cannes, southern France, May 19, 2015.