The publication has obtained photos and footage of Thompson appearing to kiss a mystery brunette in a New York City club on Saturday, April 7.
Back in September 2017, WHO revealed that Kardashian, 33, and Thompson, 27, are expecting their first child together. The Keeping Up With The Kardashians star confirmed her exciting baby news in December.
“My greatest dream realized!” Kardashian captioned an Instagram photo of Thompson holding her bare baby bump at the time.
“Tristan, thank you for loving me the way you do! Thank you for treating me like a Queen. Thank you for making me feel beautiful at all stages! Tristan, most of all, Thank you for making me a MOMMY!!!! You have made this experience even more magical than I could have envisioned! I will never forget how wonderful you’ve been to me during this time. Thank you for making me so happy my love!” she continued.
Kardashian is yet to respond to the explosive video. Check it out here.
This article originally appeared on WHO.