Kourtney Kardashian Shows Off Baby Bump in Black Bikini

Kourtney Kardashian is one hot mama! The pregnant star flaunted her growing baby bump while basking in the Los Angeles sun yesterday, showing off her killer curves in the process. Rocking a black Babajaan string bikini with chain details, oversized shades, and a chic sun hat, Kardashian couldn't have been more stylish while lounging poolside. The look accentuated her bun in the oven as well as her bronzed and toned physique—and we think the glowing mother-to-be has never looked better.

See More Photos: Celebrities Wearing Bikinis

The oldest Kardashian sister confirmed that she was expecting her third child back in June, and she has been nailing maternity style ever since. From a striped crop top and skirt to a crochet minidress, the reality star navigates fashion with ease. We can't wait to see what she wears in these last few months of her pregnancy!

To see more of her best outfits, check out all of Kourtney Kardashian's stylish maternity looks in the gallery.

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September 24, 2014

Splash News

The reality star flaunted her growing baby bump in a black string Babajaan bikini, oversized shades, and a chic sun hat while lounging poolside in Los Angeles.

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September 14, 2014

Bauer-Griffin

Another day, another hat! Kardashian donned a cream crochet minidress, Saint Laurent booties, Prada purse, and purple hat for a day of shopping with her brood at the Grove in Los Angeles.

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September 11, 2014

Bauer-griffin

Kardashian braved the sweltering California temps in a bohemian-inspired outfit. Kourt donned a figure-hugging black minidress, black jacket, black booties, and black hat.

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August 14, 2014

Christopher Peterson/Splash News

Kardashian stepped out in the Hamptons, N.Y., wearing a chic horizontal striped Lovers + Friends long-sleeve crop top and pencil skirt, bright yellow bag, pointed nude pumps, and a selection of gold jewels.

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August 12, 2014

FameFlynet Photo

Another day in the Hamptons, another summery white ensemble. Kardashian paired her ASOS dress ($126; asos.com) with leopard print heels.

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August 11, 2014

FameFlynet Photo

Kardashian looked chic and sleekain her ASOS Pencil Dress ($62; asos.com), which featured ruched sides and a white check pattern, while out in the Hamptons in New York.

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August 9, 2014

Paul Zimmerman/Getty Images

Kourt showed us that she doesn't play by the rules at the Women's Health Party Under the Stars soirée in Bridgehampton, N.Y., where she wore a daring skintight white lace jumpsuit.

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July 25, 2014

Instagram/kourtneykardash

Kardashian relaxed on a boat in the water while wearing a striped maxi dress from Tees by Tina, cool shades, and a summery brimmed hat.

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June 14, 2014

XactpiX/Splash News

Kardashian concealed her barely there bump (and showed off her gorgeous tan) in a white romper while filming scenes for Kourtney and Khloé Take the Hamptons in Southampton, N.Y.

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June 4, 2012

©David Tonnessen/Anthony Monterotti, PacificCoastNews

Just over a month before giving birth to baby number two, daughter Penelope Scotland, Kourtney wore an off-white empire waist Rachel Pally maxi dress while filming scenes for Keeping Up with the Kardashians in San Diego, Calif. The reality star paired the laid-back ensemble with flat sandals and a pair of her signature oversized sunglasses.

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May 18, 2012

JB Lacroix/WireImage

Kardashian fended off the springtime California heat while running errands in Beverly Hills in an easy breezy Cameo shift. Slicked back locks, a Céline tote, and Givenchy lace-up flat sandals kept the look chic.

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May 14, 2012

Chris Haston/NBC/NBCU Photo Bank via Getty Images

One thing is for certain: Kourt is not the type of gal to shop in the maternity section. For an appearance on The Tonight Show with Jay Leno with her sisters, she donned a form-fitting navy blue Diane Von Furstenberg mini dress, which she teamed with shoes and jewelry from the Kardashian Kollection for Sears.

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April 30, 2012

Gilbert Carrasquillo/FilmMagic

For the E! Upfront at Gotham Hall in New York City, Kardashian, then almost eight months along, showed off her baby bump in a form-fitting black Gomez-Gracia dress that featured sheer sleeves and a ruffled hemline. The eldest Kardashian sister added some color to the ensemble with bright neon shoes and a necklace.

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April 24, 2012

Alo Ceballos/FilmMagic

A loose white blouse with shoulder cutouts and fringe detailing teamed with a pair of black leather leggings, her trusty black Celine tote, and black pumps while out and about in New York City.

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April 23, 2012

Henry Lamb/Photowire/BEImages

Prints galore! Kourtney supported her boyfriend, Scott Disick, (and looked good doing it!) at the opening of his restaurant Ryu in New York City. For the occasion, Kardashian wore a T Bags Los Angeles kimono dress and Kardashian Kollection earrings.

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April 9, 2012

Josiah Kamau/BuzzFoto/FilmMagic

Kardashian looked positively glowing in a bright red pleated Pinkyotto dress. She finished the look with black Christian Louboutin pumps and her black Céline tote.

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February 26, 2012

Stefanie Keenan/Getty Images for Chopard

The reality star looked glamorous in a white Raoul gown with a gold neckline at the 20th Annual Elton Johns AIDS Foundation Academy Award Viewing Party in Beverly Hills.

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December 31, 2011

David Becker/WireImage

Happy new year! Kardashian rang in 2012 with boyfriend Scott at the Chateau Nightclub in Las Vegas. She sparkled for the occasion in a plunging black sequined Diane Von Furstenberg gown and a festive top hat.

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October 21, 2009

Jason LaVeris/FilmMagic

Just under two months before giving birth to first child, Mason Dash, Kardashian showed off her growing belly in a body-hugging gray mini dress at the launch of Lamar Odom's Rich Soil clothing line at Kitson in Los Angeles.

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October 7, 2009

Gregg DeGuire/PictureGroup

The Kardashian sisters hosted the grand opening party for Famous Cupcakes in Beverly Hills. Kourtney wore a navy blue mini dress with gold detailing on the sleeves, a gold necklace, and nude Christian Loboutin heels.

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September 22, 2009

David Aguilera/BuzzFoto/FilmMagic

For a day of shopping and filming in Beverly Hills, Kardashian opted for a more casual ensemble, topping a black top and leggings with a billowy plaid vest.

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September 20, 2009

Gregg DeGuire/FilmMagic

Kardashian looked chic in a charcoal BCBG gown at the 61st Primetime Emmy Awards.

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August 20, 2009

Frazer Harrison/KK/WireImage)

Kourtney wore a brightly colored mini dress while shopping for baby clothes in Calabasas, Calif.

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August 9, 2009

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Five months into her pregnancy, Kardashian showed off her toned legs in a multicolor French Connection mini and nude Christian Louboutin heels at the Teen Choice Awards.

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July 11, 2009