She's the only Kardashian sister with a baby, but that doesn't mean Kourtney is prepared to leave the strutting around in a bikini to her sisters.
The reality star celebrated her 32nd birthday last week with a beachside break, taking every opportunity to show off her gym-honed figure.
Whether it was bright yellow or animal print, or even an eye-catching orange version, Kourtney couldn't put a foot wrong with her bikini choices.
Birthday girl: Kourtney Kardashian celebrates turning 32 with son Mason as they play in the pool during a holiday in Punta Mita, Mexico
Looking great: The mother-of-one hired celebrity trainer David Barton after she gave birth, and has lost all her baby weight
The mother-of-one hired celebrity trainer David Barton after she gave birth, and has lost all her baby weight.
But while she clearly enjoyed prancing along the beach, Kourtney was at her happiest as she played with son Mason.
She laughed delightedly as the 17-month-old leapt trustingly into her arms from the edge of the pool.
Kourtney's boyfriend Scott Disick, 26, also helped her celebrate on the break in Puerto Mita, Mexico, showering her with kisses as they walked along the sand. The exotic location holds a special place in the couple's hearts - it is where they first met. 
Birthday girl: Kourtney Kardashian, dressed in a Mikoh bikini, turned 32 while in Punta Mita
Water baby: Mason laughs as he plays in the pool with his mother
Joining the family on the six-day stay was Kourtney's sister Kim, 30, and her new boyfriend Kris Humphries, and younger brother Rob, 24.
But sister Khloe, 26, who was recently told to lose weight by their mother Kris Jenner, and her husband Lamar Odom sat the holiday out.
The family stayed at a luxurious ocean front compound owned by Girls Gone Wild creator Joe Francis.
'We go to Joe's house every year with friends and family,' Kim said.
Wild side: The star showed off her form in a animal print two-piece
While the siblings enjoyed plenty of rest and relaxation, they didn't let their fitness regime slip.
'Yes, Kim and Kourtney worked out ever day of their vacation,' a source told Us Weekly.
Meanwhile, Kourtney has said that she is 'obsessed' with her new home.
She recently moved into the house, worth a reported $1.7million, and has been concentrating on doing it up.
'I think the decorating process is never ending', she told People. 'It's so fun. It's like a sick obsession.'
Happy family: Kourtney and boyfriend Scott Disick take baby Mason for a stroll along the beach
She said anything for her new home would be a perfect birthday gift.
'I could [decorate] and keep going with it until the day I die', she said. 'I'm obsessed with my house right now.'
But one room she won't be decorating any time soon is a new nursery as she is happy with one baby at the moment.
'I'm very content right now with Mason. I'm not saying no. Never say never', she added.
Family trip: Kourtney's sister Kim and her boyfriend Kris Humphries were also on the holiday
