"Tristan is an individual Khloe constructed a life with and observed as her endlessly".
Blair - who was also spotted kissing Kardashian's soon-to-be baby daddy - didn't show up for her shift as a bartender at seedy Queens jiggle joint Club Angels last night after the Thompson scandal broke.
The Cleveland Cavaliers star was pictured appearing to kiss Instagram model Lani Blair in NY on Saturday night; while footage from last October saw Tristan getting cosy with two women in a hookah lounge.
TMZ.com reported that the woman, whom they identified as "Stephanie", took to her Instagram Story on Tuesday night to allegedly expose Thompson, sharing a sex tape she claims shows her and Thompson having intercourse.
This isn't the first time he's been caught cheating.
Select her "Following" section on her Instagram. The goal is to get Khloé out of there as fast as they can without jeopardizing the safety of the baby after she's arrived.
The news follows reports that 33-year-old Kardashian is "distraught" at the apparent revelation of infidelity.
Another insider tells us that the K clan is "freaking out", and doing everything they can to make all the arrangements so that Khloe doesn't have to stress over how things are going to play out.
"She will obviously never be able to trust Tristan again or look at him the same way", the source added. "I simply had to trust in Him and be patient". Tristan, most of all, Thank you for making me a MOMMY!