He may have been outnumbered six to one, but as the only boy in the room baby Mason easily stole the spotlight.
Kardashian Family Hits the Red Carpet for Redbook
The cute-as-a-button tot posed on the red carpet with his fellow cover stars for this month's issue of Redbook magazine at a party thrown in their honour.
He was surrounded by the ladies of the Kardashian clan, including mother Kourtney, at the bash to celebrate their issue.
Family affair: The Kardashian family (L-R) Kris, Kylie, Kim, Kendall, Kourtney, Mason and Khloe pose together at a Redbook magazine party in their honour
Kourtney - who turns 32 on Monday - dressed in theme, tweeting that her red jumpsuit was chosen to honour the Redbook magazine.
Chic: Kim Kardashian looked sleek in a pair of black draped trousers and grey sheer top for the party, held to celebrate the family's cover shoot
Khloe, 26, stood out in a shirt and bow tie combo with a skirt and cinched her waist in with a wide belt.
She added some colourful shoes to liven up the outfit.
Khloe and her husband Lamar debuted their own reality show this week, which follows their marriage and home life.
The matriarch, who acts as manager for all of her children, says: 'It's annoying when I hear, "What do your girls do?",' she said. 'Well, first of all, all of my daughters have jobs.
'They are fashion stylists and designers; they own a chain of stores. They had the stores before they had the show.
Kiss for Aunty Kim: The reality star puckered up to her nephew Mason Disick, while mother Kourtney looks on
'So to me, that's a huge misconception - that the girls don't work. They work 25 hours a day.
'And that they don't have any talent? They might not be singers or dancers, but they certainly know how to produce a television show.
'Whether you want to call it talent or not, they have multiple shows on the air. [I want to say,] How many shows do you have?'
Kim, who is the biggest star of the family and worth an estimated $35 million, says she doesn't mind living her life in the public eye, as she has nothing to hide.
Feeling clucky? Kim, 30, only had eyes for Mason on the red carpet, and also held on to him at the party
'I don't drink or do drugs, so I'm comfortable showing the world what my life is all about.'
This week, though, Kim was angered to find out that her image had been used on the cover of Turkish Cosmopolitan magazine, which is due to go on sale on the same day Armenians commemorate Genocide Remembrance Day.
The day marks the systematic extermination of the Armenian population by Turkey during and following World War I, and Kim has spoken out about the horror in the past.
Cover girls: The Kardashian ladies and baby Mason posed for Redbook's first ever family issue this month
Kim, who is half Armenian, took to her website to criticise the decision, which she was unaware of.
The photograph appeared on the cover after Kim took part in an international photo shoot that went to various magazines published by Cosmopolitan.
She wrote on her blog: 'Cosmopolitan Magazine has a number of international editions all around the world that run in various territories, and when I did this shoot for the international covers I had no idea that Turkey was planning to run my story on their cover THIS month, considering Genocide Remembrance Day is this month.'
Matriarch: Kris Jenner (centre) defends her daughters in the interview, insisting, 'It's annoying when I hear, "What do your girls do?" They work 25 hours a day'