But it's not what you think!

Khloe Kardashian and Kylie Jenner shot their first ever Kylie Cosmetics YouTube video to promote the In Love With The Koko special collection, and the look-a-like sisters joked around a lot about babies, but didn't reveal their pregnancies.

"We created them. It’s our baby together, we have eight!” Khloe quipped. "We have so many babies, who knew?" Kylie added.

Neither of the reality stars have yet to comment on their bun in the oven, but Kris Jenner just basically confirmed the Revenge Body star is going to be a mom in a new interview, claiming she's "over the moon" for her middle daughter.

"We love Tristan so much, and she's so happy, and she's been through so much. Just seeing her be able to do something so creative with [her denim line] Good American -- that's her passion. On top of it, to be in such a great place in her personal life is amazing. She's really happy. She lives most of the time now in Cleveland, so that's interesting, because she's not around every day," the momager told Entertainment Tonight.

As for the youngest KarJenner?

"I think she is very strong. I think the strength that she has as a woman and as an entrepreneur, a businessperson, and everything that she's got going on -- she's really equipped to handle whatever comes her way. I'm so proud of that kid. She's a good girl with a big heart," the K clan matriarch added.

We wanna see their bumps already!