Earlier this month, Kim Kardashian announced she was on a mission to drop a few pounds -- and it looks like the mission was accomplished.

The reality star, who just celebrated her 32nd birthday, shared a photo of herself in sweatpants and a workout bra (and a full face of makeup, of course) showing off a very toned-looking tummy.

"I just wanna chill in my sweats all day!" she wrote when she posted the photo to her Twitter account.

Earlier, Kardashian had told Life & Style magazine that she was "hoping to slim down a little bit," and used her relationship with Kanye West as the reason she'd gained a few pounds.

"I think everyone goes up and down in whatever that comfortable love relationship phase is where you like to eat out, but now it’s time to get it together again," she told the magazine.

Kardashian is a believer in Barry's Bootcamp workout, but she also likes a quick fix. She boasted that she had shed some weight using QuickTrim, (the possibly unsafe) diet pill and shake program for which she and her sisters Kourtney and Khloe are spokeswomen:

"Since I started QuickTrim again a few weeks ago, I'm down 6 lbs!!! Yay best feeling. I was getting discouraged but now I'm so motivated!" she wrote on her Twitter account on Oct. 3.

kim kardashian abs

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  • 1995

    A fresh-faced, 14-year-old Kim attends the "Cinderella" video release event with her mother, Kris, stepfather, Bruce, and siblings, Khloe, Kourtney and Rob.

  • 2005

    At E! Entertainment Television's Summer Splash event, we recognize the beginning of Kim's signature sexy look.

  • 2006

    Kim proves that even stars have trouble perfecting smoky eye makeup with this heavy-metallic gray shade she donned at the William Rast "Street Sexy" presentation.

  • 2007

    Paparazzi catch Kim backstage at the Heatherette Fall 2007 Fashion Show wearing loose curls, bold brows and purple eyeshadow.

  • 2007

    Young and impressionable, Kim takes matching her makeup to her outfit too seriously with sea green eye shadow.

  • 2007

    Kim embodies B-girl style with a curly, side ponytail and glossy pink lips.

  • 2007

    Kim looks ready to dance the flamenco in loose locks adorned with a red flower, heavily-lined lids, rosy cheeks and red lipstick.

  • 2007

    This can't be real? Kim's hair is absolutely perfect as she throws out the first pitch at a Los Angeles Dodgers game.

  • 2007

    Kim attends the Chelsea FC Soccer Party wearing frosty purple eyeshadow, lipgloss and sculpted cheeks.

  • 2007

    Wearing a glamorous half-up, half-down hairstyle, Kim is bronzed to perfection at the Celebrity Catwalk for Charity.

  • 2007

    Luxurious waves, kohl-rimmed eyes and ruby red lips complete Kim's "Keeping Up With The Kardashians" premier party look.

  • 2008

    Kim continues her red lip affair at the 2008 Teen Choice Awards and accentuates it with porcelain makeup and faux bob.

  • 2008

    Kim pairs her one-shoulder dress with a wavy, side ponytail.

  • 2008

    For Halloween, Kim channels a modern-day "Wonder Woman" with big hair, cat-eye makeup, blush and bronze lip gloss.

  • 2008

    Kim lays it on heavy with big, soft curls, bangs that fall onto her lashes and lots of mascara.

  • 2009

    Kim pares it down in barely-there makeup and a tousled faux bob for the 20th Annual MuchMusic Video Awards.

  • 2009

    Kim brings the focus to her peepers with graphic eyeliner at the Sugar Factory's grand opening in Las Vegas.

  • 2009

    Kim nearly looks unrecognizable in a new honey-blond hair color at the 2009 Teen Choice Awards.

  • 2009

    For the Los Angeles premiere of "Whiteout," Kim does rockabilly glam with a rolled updo and bright red-pink lips.

  • 2009

    Kim channels the Roaring Twenties flapper beauty in sculpted waves.

  • 2009

    Kim debuts a skunky new blond and caramel hairdo at the 12th Annual Cracked Xmas Gala.

  • 2010

    With a head full of loose curls, Kim is all smiles as she debuts her new signature scent at Sephora in Miami Beach, Florida.

  • 2010

    Kim proves her raven strands are all good with a hood at the Bebe Kardashian Fall 2010 Fashion Show in New York City.

  • 2010

    Kim makes us look twice as she poses at the unveiling of her wax figure at Madame Tussauds in New York City.

  • 2010

    Kim looks quite the vixen at Comcast Entertainment Group's E! Party in a long, shiny strands, bangs and smoky eye makeup.

  • 2010

    Kim promotes her new fragrance line at Perfumania wearing fierce fringe and a super-long ponytail.

  • 2010

    Kim matches her auburn-highlighted hair color to her tawny eye makeup.

  • 2010

    Kim looks Euro-chic posing with the Queen's Guard in London with her brunette locks topped in a knitted beret.

  • 2010

    Always one to play (and look the part), Kim visits Oktoberfest in Munich, Germany wearing fishtail braids.

  • 2011

    Kim dons a classic beehive with long bangs at the 2011 Peoples Choice Awards.

  • 2011

    Kim had beauty editors buzzing when she showed up at the 17th Annual Screen Actors Guild Awards sans false lashes, opting for her naturally long set.

  • 2011

    Kim attends the movie premiere for the mystery-thriller "Unknown," which stars Liam Neeson, Diane Kruger and January Jones, wearing a pumped-up ponytail and center-parted bangs.

  • 2011

    Kim parties it up at the QVC Red Carpet Style event in side-swept strands, bronze complexion and bold red lips.

  • 2011

    Perfectly placed auburn highlights add warmth to KIm's signature hairdo.

  • 2011

    Kim's statement earrings weren't the only things that caught our eye at the 2011 Glamour Women of the Year Awards in London. The reality star looked sophisticated in a sleek updo, doll-like lashes, pink blush and lipstick.

  • 2011

    All eyes may have been on Kim's curves at her fragrance launch in London, but we can't seem to stop staring at her cleavage-grazing hairstyle.

  • 2011

    For her appearance on "The Tonight Show With Jay Leno," Kim shows off a new shorter 'do, but we think she may have removed a few hair extensions.

  • 2011

    Kim goes retro for her new fragrance ad campaign with a Sophia Loren-inspired look starting with soft curls, lush lashes, peach blush and nude pout.

  • 2011

    Kim hit up the 2011 Teen Choice Awards blue carpet with her dark strands styled in a ballerina bun; eyes dressed in gold eyeshadow and lips painted in a soft coral shade.

  • 2011

    Just three days shy of her wedding day, Kim attends the Kardashian Kollection Launch Party wearing a bridal-worthy glow; voluminous waves; lush lashes and nude glossy lips.

  • 2012

    Pared-down on the front row of rumored beau Kanye West's fashion show. Getty Images

  • 2012

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