'Here are some photos I took on my phone while I was getting my hair and makeup done at our Glamour Magazine cover shoot,' she said.
'As always, a huge thanks to my gorgeous hair and makeup team Joyce and Rob for making me camera ready and entertaining me in the process, lol! Love you guys!'
Sexy mama: Kourtney recently announced she is 10 weeks pregnant with her second child with boyfriend Scott Disick
Behind-the-scenes: The sister enjoyed getting glammed up for the party-themed fashion shoot
The shoot took place in October before Kourtney became pregnant and she looked anything but mumsy in her sequined top and forties-style hot pants.
Auntie Kim first announced Kourtney’s pregnancy on her blog, writing, 'I have some amazing news to share with you all! Kourtney and Scott are expecting their second child!!
This is such a blessing and the whole family is beyond thrilled! I just know Mason will make the best big brother and I can’t wait to meet my new little niece or nephew!'
Cover girls: More photos of the Kardashian sisters and a full interview is in the January issue of the US Glamour magazine
'It should be Kris, of course!' Jenner, 56, joked. 'Half of me wants it to be two boys or two girls, that's fun for a little playmate.'
'And then, of course you want what they don't already have, but I am happy either way. Just a healthy baby!'
And how does she think Mason, who turns two next month, will take to his younger sibling?: 'I think he is going to be in for the surprise of his life, because he is going to have to share the attention,' she said.
All hands on deck: Kourtney's team is hard at work getting her glammed up
In an episode of Keeping Up With the Kardashians in July, Kourtney was seen clashing with mother after she mentioned that she and Scott were considering trying for another baby.
New Year's Eve: The Glamour shoot had a New Year's Eve Party Theme
Kourtney was so excited, she couldn't wait the traditional amount of time before sharing it with the world.
'Now I'm nine weeks along,' Kardashian told US magazine. 'You're supposed to wait 12 weeks to tell people, but I feel confident.'
The older sibling of Kim and Khloé told how she woke partner Scott up at seven o'clock after taking a positive pregnancy test to share the news.
As for Kourtney's pregnancy so far? 'She's nauseous,'Kris said. 'Very, very nauseous... Yesterday she was eating popcorn, so maybe it's the salty taste that makes her less queasy.'
The finished product: Kourtney's make up is finished and she's ready to go
Party time: Kourtney looks anything but mumsy in a sexy purple Dolce and Gabbana bodysuit which she teams with a New York Hat Co. Top hat.