Kim Kardashian West. Picture: Instagram

Khloe Kardashian has begged her sister Kim Kardashian West to make up with her boyfriend Tristan Thompson after they fell out over his cheating scandal last month. 

The 'Keeping Up With the Kardashians' star has been forced to step in to make sure there's no animosity between her sibling and her partner after they unfollowed one another on their social networking sites when video footage of the 27-year-old basketball player appearing to kiss another woman in a nightclub was leaked online - just days before Khloe gave birth to their daughter True on April 12. 

A source told The Sun Online: "Khloe is desperate for them all to let bygones be bygones. She is starting to plan True's christening and doesn't want there to be any bad vibes between Kim and Tristan. Kim and her sisters were her rock when she was heartbroken over the 'cheating' allegations, but she has decided to try to make things work for Tristan, and really wants Kim and Tristan to draw a line under their feud.

"Khloe is serious about this, as right now Kim and Tristan are barely speaking. Tristan knows he needs to make every effort to prove to her family that he is going to be a good partner - and rebuild that trust."

Kim, 37, has made her feelings for Tristan perfectly clear as she branded his behaviour "f***ed up" when she appeared on 'The Ellen DeGeneres Show'.

She said of the cheating allegations just days after it came to light: "Poor Khloe. Like, I don't even know how to describe it besides it's just so f**ked up."

Although Khloe's family aren't keen on Tristan, the 33-year-old star is determined to make her relationship with him work for the sake of their little girl. 

The blonde beauty was expected to move back to Los Angeles - where her relatives are based - after the birth of True last month, but she's since changed her mind and is keen to stay in Cleveland, Ohio, with Tristan and their baby daughter.