Saint West's first word was "Dada".

Speaking to PEOPLE at MGM Grand's Hakkasan nightclub in Las Vegas on Friday, she said: "He said 'Dada' today, three times and I was like 'what?' Kanye was so excited. He was like 'I told him to say that.' I was like, 'I just really wanted him to say 'Momma first.'"

Meanwhile, just hours before Kim was due to leave for Las Vegas for a girls' trip with friends, she chipped her tooth and had to squeeze in a trip to her dentist, Dr Kevin Sands.

Kim, 35, shared a video of herself with Dr Sands on Snapchat and explained that she had chipped her "front f***ing tooth".

However, he was able to work his magic in order to ensure that Kim made it to Vegas, where she hosted a bash at Hakkasan.

The star was joined by pals including Maria Menounos, Larsa Pippen and Carla DiBello, where they celebrated their friend Ariana's bachelorette party.

No doubt Kim was happy to let her hair down after an action-packed week.

Last weekend she took to Snapchat to leak a conversation between her husband and Taylor Swift talking about his controversial song 'Famous' - which features lyrics where he calls the 'Shake It Off' singer a bitch and says they might have sex.

The track includes the lines "I feel like me and Taylor might still have sex / I made that bitch famous," in reference to Kanye interrupting her acceptance speech at the MTV VMAs in 2009 and Taylor previously insisted she had never given her approval to the song.

Following the release of the tapes, when people accused her of lying, the 'Shake It Off' hitmaker argued that Kanye never told her he'd call her a "bitch."

She wrote on Instagram: "Where is the video of Kanye telling me he was going to call me 'that bitch' in his song? It doesn't exist because it never happened. You don't get to control someone's emotional response to being called 'that bitch' in front of the entire world."

Since the very public war of words between the trio, various celebrities - including Ruby Rose, Chloe Grace Moretz, Selena Gomez, Khloe Kardashian and Katy Perry - have weighed in on the argument with their own opinions.