Tristan Thompson felt the wrath of social media Sunday night when he took to Instagram to flirt with baby mom Khloé Kardashian.

The Keeping Up With The Kardashians star, 36, shared a stunning promo shoot for her Good American clothing line.

Under the video, the basketball star, 29, wrote: "My queen."

Khloé who shares daughter True, two, with Tristan, sported a tiny bralet with matching trousers. She coordinated it with a matching padded jacket, while lying on her side with one knee up.

The on-off couple have faced their fair number of challenges over the years, most notably Tristan cheating multiple times.

Khloé weathered Tristan's first cheating scandal in 2018, two days before she gave birth to True.

Tristan was seen getting close to model Lani Blair at New York nightclub. Surveillance footage of him kissing two women at a lounge in Washington DC also emerged.

The duo worked on their relationship and didn't break up until February 2019. That's when Tristan was caught kissing her sister Kylie Jenner's best friend Jordyn Woods.

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After the Tristan's flirty comment, many fans mocked Tristan because of his past adulterous ways.

".. commenting when he has 2 strippers taking a nap in his bed," one fan wrote.

"I can’t expect much from a women who takes back a man who disrespects her THREE TIMES. @khloekardashian BE A BETTER ROLE MODEL FOR YOUR DAUGHTER. she’s going to grow up and accept this from other men," an angry comment read.

"'My Queen' as he sticks his tongue down anyone that's available throat," a shady person added.

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The comments come after Tristan was spotted dining in his new city of Boston earlier this month. The two were seen huddled up at Zuma, a restaurant at Boston’s Four Seasons Hotel.

Thompson recently signed a two-year $19 million deal with the Boston Celtics, as confirmed by his agent Rich Paul to Yahoo Sports .

However according to an insider Khloé and Tristan are working hard on their relationship.

"Tristan in Boston is a difficult pill to swallow for Khloe. Her and Tristan have been doing so much better as a couple and as a family lately," the source told Entertainment Tonight.

"Khloe is especially going through it, she fears he may cheat again and prove everyone right. She doesn't want to come out and officially admit they're together again because she doesn't want to be embarrassed," the source adds.

Next: Khloé Kardashian Sparks Pregnancy Rumors As Sources Say She’s Ready For Baby #2