Kendall Jenner revealed Kourtney Kardashian is the worst parent out of her siblings

Well, this ranking is something she has clearly done before.

During a game of Spill Your Guts on The Late Late Show with James Corden, Kendall Jenner went in on her sibling's parenting skills with no mercy. Starring on the show alongside the ever-so-dashing Harry Styles, the pair asked each other a series of questions that they could either answer or eat one of the disgusting items in front of them like cod sperm or bull penis - yes, really. With her dad straight off the back of I'm A Celeb, you'd think Kendall would gorge on the nasty items before telling some truths but instead, she went with the latter. Deciding to reveal who is the best parent out of all her siblings, Kendall was made to rank them from good to bad and that she did.

"I feel like, I could answer that," she shared. "I'll start by saying they all really are amazing."

Of course you will, Kendalll. But then, the 23-year-old went in.

Rob is number one, he is so good to his daughter," before then speedily answering: "It would be like, Khloe, Kim, Kylie, Kourtney."

Ouch. Look away, Kourtney. As Kourtney is the mom in the game the longest and Kylie is basically Kendall's twin, you'd presume they'd be higher up in the list but, you'd presume wrong. Harry on the other hand appeared to spend his time eating a range of animal parts as he decided to not answer a question about his former bandmates and then again when asked about what song he wrote about Kendall Jenner... by Kendall Jenner. Yep, awks. You can watch that below.