Khloe Kardashian's 'world is shattered' over Tristan Thompson cheating revelation

Reality TV star Khloe Kardashian is said to be 'completely devastated' over infidelity stories about the father of her unborn child, whom she is reportedly about to dump.

NBA star Tristan Thompson appears to be making out with multiple women in videos published online this week, with other photos allegedly showing him checking into a hotel with a mystery woman.

An Instagram account has reportedly been started by someone claiming to be one of the basketball player's alleged mistresses, who has posted her own sex tape and claims she's pregnant to him.

Khloe is currently nine months pregnant herself, with gossip reports suggesting she now wants to raise their child without Tristan.

"At this point she never wants to see his face again and does not want him near her when she gives birth," an unnamed source tells Radar Online.

"She thought she met the love of her life and was finally happy and then Tristan goes and makes a fool out of her... She feels sick inside, and her biggest dream has turned into her worst nightmare."

Khloe is said to be "distraught" by E! News.

"Her entire world has been turned upside down. She cried hysterically all night," a source told the publication.

"Her world is shattered. She is in complete disbelief that this is happening. The family absolutely believes it's in Khloe's best interest to end the relationship but will support her either way."

A source tells Entertainment Tonight Khloe is "completely devastated... [and is relying on] the full love and support from her sisters during this difficult time".

Tristan left his former partner, Jordan Craig, while she was pregnant with his child - dumping her to be with Khloe.

Jordan appeared to comment on the new cheating allegations in an Instagram post.

"If you respect yourself and you respect others, you would never make light of the misfortune of anyone, nor would you feel indemnified when it comes at the expense of others," she wrote.

"Wishing peace for everyone."

Khloe is due to give birth this month.

Newshub.