But, what about the kids, though? Have they met her yet? And if so, did they understand what was going on?
In this clip from her appearance on The Ellen DeGeneres Show on Wednesday, Kim recounts what it was like when she first saw Cait when she was 21 years old, not fully understanding that this was anything more than cross-dressing.
She then reveals that North has met her, too, and it doesn't sound like it was a big deal at all. "I brought North over for Mother's Day," she recalls, before correcting herself and remembering that it was Father's Day. "I said 'Are you really inviting us over for Father's Day? You're not expecting a gift? You're not double-dipping here, are you Mother's Day or Father's Day? You get one gift!'"
As it turns out, this pic Cait shared on Instagram was from their first meeting and it looks like everyone had a great time. Even Kanye West is smiling for the photo and we know how 'Ye feels about smiling!