Khloe Kardashian'S ex French Montana What's the best thing to do with the Kardashians over the weekend!
An eyewitness tells RadarOnline.com exclusively the rapper and Kourtney were "all over each other" at P. Diddy'S 49th birthday bash on Sunday.
"Kourtney and French were on each other," a source who attended the party at Ysabel in West Hollywood on Sunday, November 4 reveals. "She was twerking on him, he had his hand on her waist and a ** and what was whispering in her ear all night."
PHOTOS: Kourtney Kardashian's Celebrities On Yacht For Her Daughter Penelope's 6th Birthday – Lake Pics
Kourtney did not mind the attention after her nasty split from boytoy Younes Bendjima, "She was eating it up," said the informant. "She was smiling in his face and giving his hand to him hors d'oeuvres."
The partygoer tells Radar the pair appeared "too close for comfort" and were "looking like they wanted to do some x-rated things."
As radar readers know, Khloe is still suffering heartbreak Tristan Thompson inflicted when he was on tape cheating on her with two women.
PHOTOS: Molto Bella! Kourtney Jets Off To Rome With Youne's After Maxim 'Hot 100' Humiliation
On Sunday's episode of Keeping Up With The Kardashians, viewers saw Khloe's family react to Thompson's cheating scandal as Khloe live tweeted during the show.
"You may forgive but forgetting is not possible. Looking back that I was in shock because I could not believe this would ever happen to me. I needed the peace and strength needed, "she tweeted.
"I chose to put my feelings aside for the birth and to try and have as much positive energy that I could. My only thought about the birth of my daughter. I'm not going to let ANYONE do anything less than what they deserve. Joyous love. "
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at email@example.com, or call us at (866) ON-RADAR (667-2327) any time, day or night.