Khloé Kardashian revealed Tristan Thompson took three DNA tests over fears son Tatum was actually her brother’s baby

Khloé Kardashian revealed that Tristan Thompson took multiple paternity tests after the birth of their son, as a wild connection to her brother, Rob Kardashian, made her question everything.

The Kardashian/Jenner family tree isn't a particularly straightforward one to navigate, but when Khloé suggested that her son's dad might actually be her biological brother Rob, she took things to a whole new level.

The star used a surrogate for the birth of her second child, Tatum, who is now two-years-old.

She welcomed her son with the Canadian-American basketball player in 2022, after making a devastating revelation towards the end of the pregnancy.

The 40-year-old found out that while the pair were going through the process of finding a surrogate to carry their child, he had gotten another woman pregnant.

Despite their turbulent relationship, Khloé more recently noted that they two are actually now good friends, and despite not wanting to be involved romantically, that he is a great father to her children.

Khloe raised a concerning question about who her son's father was (Instagram/@khloekardashian)

But it's that very detail that she questions, when Tatum was born.

In a new interview on the SHE MD podcast, the reality star revealed that she got Tristan to take several paternity tests to confirm he was definitely Tatum’s father.

"I made Tristan do three DNA tests for Tatum," she said. "He was so offended."

Khloé had noticed that her son looked a lot like her brother Rob Kardashian, noting the ‘freaking weird’ resemblance her son had to her sibling.

"My son looks just like my brother," she continued.

Khloe noted that Tatum looks a lot like her brother, Rob Kardashian (Instagram/@robkardashianofficial)

"Because he was an IVF baby or a surrogate baby, I was like, 'Rob, have you ever donated sperm somewhere?'"

Khloé joked: "In this family, that would not surprise me, but that would be so disgusting.

"But I remember she [her doctor] was like, 'You’ve already done a DNA test!'

"I go, 'I need to do another one, I need to figure it out.'"

She said Tatum reminds her of her late father - also called Robert - adding: "My son’s a year-and-a-half, and he’s sarcastic, and my dad had a really dry, silly, just crazy sense of humour, and there’s glimmers of my dad in Tatum, and I’m like this is so freaking weird, but it’s just how God works, and I love it."

Speaking about Tristan, she added: "He made a mistake, but he's the nicest guy.

"And we get along so well now. We're not meant to be together, but he was meant to be the father of these kids."