All thanks to Spanx! Kourtney Kardashian reveals slimming secret as she flashes shapewear at family lunch

PUBLISHED: 17:07 EST, 4 November 2012 | UPDATED: 12:47 EST, 5 November 2012

She has been shedding her baby weight after giving birth to her second child four months ago.

But Kourtney Kardashian has a way of ensuring she looks picture perfect in the meantime.

The reality star accidentally flashed a pair of Spanx when she stepped out for lunch in Miami on Sunday.

Slimming secret weapon: Kourtney Kardashian flashed a pair of Spanx as she stepped out for lunch in Miami on Sunday

As she was dressed in a beach cover-up due to the warm weather, the 33-year-old’s shapewear was visible when she turned to the side.

She’s not the only one who is a fan of Spanx as her sisters Kim and Khloe have also been spotted using the underwear to smooth out any lumps and bumps.

Kourtney in fact had flashed a similar pair of the nude underwear during a photo shoot last week.

The star had been getting set to pose in a green gown when a gust of wind caused her to have something of a Marilyn Monroe moment.

Spanx for the tip: Kourtney, who carried four-month-old Penelope, is a fan of the shapewear to smooth out any lumps and bumps

Father and son: Kourtney's partner Scott Disick was seen carrying Mason, three, into the eatery ahead of their meal

But it was a slightly less glamorous affair on Sunday as she headed for a meal with her partner Scott Disick and their two children Mason and Penelope.

Kourtney carried little Penelope, who was shielded by a blanket, in a convertible car seat while Scott took charge of three-year-old Mason.

Petite Kourtney showed off her legs as she headed into the Florida eatery in her white and gold printed cover-up, which she teamed with matching flip flops and large round sunglasses.

The previous evening the happy couple had been seen going for a spin on Scott’s black scooter.

Pretty in patterns: The reality star's cover-up featured a geometric design and she teamed it with retro sunglasses and flip flops

While according to Kim they are getting on better than ever since Penelope’s birth, Kourtney admitted during her pregnancy that she has reservations about getting married.

When asked this summer on Jimmy Kimmel Live if she will be walking down the aisle, she said: 'First of all, I have realised that I have major commitment problems during this pregnancy.

'I'm really claustrophobic, and all my issues - and I have a lot of them - they all stem from this thing. I can't commit to anything... but I love Scott, and he is my partner...

'We are committed to each other, we are together, we have a great partnership - I don't think I'm any different than Khloe and [her husband] Lamar.'

Wild ride: The previous evening Scott was seen taking Kourtney for a ride on his scooter

Meanwhile, the Kardashians are currently in hot water with two make-up companies who are claiming they stole the name of their new cosmetics line Khroma.

After receiving legal threats from a company called Chroma, they have now been issued a cease and desist letter from one called Kroma.

Kroma is reportedly exploring legal action after a trademark request by the stars' line was rejected by the U.S. Patent and Trademark Office, according to TMZ.

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Mason is absolutely gorgeous, but much too old for a dummy!

- Fit50 , Cambridge, 05/11/2012 19:35

Click to rate Rating 17

Her son is much to old to still have a pacifier. His teeth will not grow in straight . And for heaven's sake, cut his hair, he is starting to look like a girl .Cute kid though.

- CanadaUKlover , Toronto.Ontario.Canada, 05/11/2012 18:33

Click to rate Rating 15

Mason is too ld for a binkey. And Scott is hilarious with his vanity. He promotes that Wall Street look. You're so vane, you probably think this song is about you!

- My 2cents , OBAMA COUNTRY, United States, 05/11/2012 18:06

Click to rate Rating 21

Can almost guarantee that she and her sisters will look awful by middle age. Not a pretty lot.

- Canadian , Canada, 05/11/2012 16:23

Click to rate Rating 3

I would just lie to ask the women of the world to take a very close look at this Kourtney woman and all of them. You made her rich, you are continuing to pay her mortgage and everything she has that you don't. Why do you do it?

- Kuri , UK, 05/11/2012 15:49

Click to rate Rating 20

Snass of Amsterdam ..you say you dont want to "be mean" ..but by your comment that is just what you are - plain old mean and nasty ....

- alliesurrey , surrey, 05/11/2012 15:39

Click to rate Rating 9

you told us she wears spanx already. it wasn't news then why on earth do you think it's news a second time? Why do you give this fmaily of greedy shallow vain women more pr in one day than the entire american media machine gives them in a week?

- Paul , lansdale, United States, 05/11/2012 15:16

Click to rate Rating 13

In response to Joey from cardiff...ABSOLUTELY, spanx are 1of the best inventions. They are great even if you are thin. Now, about the Kardashians, they won't go away until the media stops throwing them in our face and reporting on their every move. Does there really need to be an article written about them breathing air, wearing spanx, riding a motorcycle,eating dinner and showing their ti*s and a$s all day? Does anything they do really warrant full articles and front page coverage of every day mundane activites?? Enough is enough

- mimij , Boston MA, 05/11/2012 14:24

Click to rate Rating 12

why does she still cover up baby when she showed the whole world her birth

- Someone , Somewhere, 05/11/2012 13:07

Click to rate Rating 58

She might want to try a skirt next time.

- David , Camps Bay. Cape Town, South Africa, 05/11/2012 12:27

Click to rate Rating 17

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