Irina Shayk flaunts bikini bod less than a month after welcoming baby with Bradley Cooper

Irina Shayk is wasting no time getting back into shape!

The stunning model, who welcomed her first child with boyfriend Bradley Cooper on March 21, shared a photo of herself on Tuesday lounging in a black bikini that showed off her enviable post-baby bod.

SEE ALSO: Serena Williams reveals she's pregnant in sexy swimsuit selfie!

Posted less than a month after welcoming daughter Lea de Seine Shayk Cooper, the sizzling photo shows Shayk, 31, floating on a giant pool floatie shaped like pink lips with her arms over her head and eyes closed as she soaks up the sun.

"Pre-sunset," she captioned the snap. "#currentsituation"

45 PHOTOS
Spring Break Celeb Beach Bods 2017
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Don't know if it's physically possible for me to get any more tan....
Why not? 😏
#turksandcaicos #funinthesun
Yep
Best day!!
Pre-sunset πŸŒ…πŸ˜ #currentsituation
Love this suit from @shoplunab !!!
Hey I look just like you here @luvismyreligion4
πŸ’‹ @elizabethhurleybeach @fregateislandprivate
Float float and some funny marks on your bum when you get up
Happy oh happy
Forever in Denim. Thanks @VogueMagazine! #momjeans
Spring Break #2017 with the kiddies #lifeofnene
Welcome to the family!! @cashiethefrenchbulldog 🐢 Click link in my bio!! πŸ‘™πŸ©
super busy
You can get these beautiful long fabulous cover ups at SWAGG BOUTIQUE. Will post more about it later #lifeofnene πŸ’‹
X2 cuz why not! πŸ€·πŸ½β€β™€οΈ
Swingin' around β˜€οΈ
Salty kisses on my tan #girlonthecoast (Viv calls it the "coconut song") #GOLD
Peace and love #ready for any storm πŸ™πŸ»πŸ™πŸ»πŸ™πŸ»
@lspaceswim photoshoot with mommy πŸ–€ πŸ“Έ@damir_k @pinkdustcosmetics
Loving the Sunβ˜€οΈ#yoga #vitamind #namaste
morning🌺
Together ❀
Oh Hi. Going from this to the NYC blizzard tomorrow. 😽 #ILOVELA
Sun baked #Maldives πŸ‘™πŸŒžπŸ’¦
☺️
Saltwater hair | πŸ“Έ: JC
Love these days!!! #sundayfunday
Early morning session with @emerysurfboards @australia
Sunday funday with my #mcm πŸΉπŸ‘™β˜€οΈ
I need you out in Jamaica relaaaxxin..😍😍
Make time for yourself #spaday 🌺Horizontal shower! Day spa para relaxar! #sunday #relaxing #aigaispa #tranquilidade #serenity
Today was booootyful β˜€οΈ
The beach is def my happy place and in ONE WEEK I'll have my toes in the sand again while listening to some country music at @tortugamusicfestival. Doesn't get much better than that. πŸŒŠβ˜€οΈπŸŒ΄
Bye bye Nica 🌈 we love you @loveyogaspace
Having zero fun 🌊
Like my scarf??? @oprah and @talbotsofficial have teamed up for @dressforsuccess and that means...you can buy this scarf (and other items) and be supporting an AWESOME organization #talbotsxomag
We can go to the island 🌴🌺 & get you gold, no spray tan πŸŒžπŸ™…πŸ½ #nicsflingb4thering @modernhonolulu #hawaii
😘 @elizabethhurleybeach @sixsenseszilpasyon
COACHELLA
This is the look of pure bliss! I'm so blessed! I'm so blessed! I'm so blessed! @acaciaswimwear #islandlife #6yearsin #grateful #muchneededbreak #fridayfeeling πŸ“· @eddiecibrian ❀
Feels like summer!!🌸 #luke
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The model has been dating Cooper since May 2015. The first-time mom announced her pregnancy during the 2016 Victoria's Secret Fashion Show last November, and the couple sparked unconfirmed engagement rumors a month later when Shayk was spotted a ring on her ring finger.

Cooper, 42, has made headlines of his own this week when Lady Gaga shared the first picture from their upcoming film, "A Star Is Born," which will shoot a scene during Coachella.

See photos of Irina Shayk and Bradley Cooper together:

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Irina Shayk and Bradley Cooper
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Irina Shayk and Bradley Cooper
LONDON, ENGLAND - JULY 10: Bradley Cooper and Irina Shayk look on prior to the Men's Singles Final match between Andy Murray of Great Britain and Milos Raonic of Canada on day thirteen of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2016 in London, England. (Photo by Julian Finney/Getty Images)
LONDON, ENGLAND - JULY 06: Bradley Cooper and Irina Shayk attend day nine of the Wimbledon Tennis Championships at Wimbledon on July 06, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 08: Bradley Cooper and Irina Shayk attend day eleven of the Wimbledon Tennis Championships at Wimbledon on July 08, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 06: Bradley Cooper and Irina Shayk attend day nine of the Wimbledon Tennis Championships at Wimbledon on July 06, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 06: Bradley Cooper and Irina Shayk attend day nine of the Wimbledon Tennis Championships at Wimbledon on July 06, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 06: Bradley Cooper and Irina Shayk attend day nine of the Wimbledon Tennis Championships at Wimbledon on July 06, 2016 in London, England. (Photo by Karwai Tang/WireImage)
NEW YORK, NY - MAY 02: Irina Shayk and Bradley Cooper attend 'Manus x Machina: Fashion in an Age of Technology' Costume Institute Gala at Metropolitan Museum of Art on May 2, 2016 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - MAY 02: Actor Bradley Cooper (L) and model Irina Shayk leave the 'Manus x Machina: Fashion In An Age Of Technology' Costume Institute Gala at the Metropolitan Museum Of Art on May 2, 2016 in New York City. (Photo by Ray Tamarra/GC Images)
PARIS, FRANCE - MARCH 09: Irina Shayk and Bradley Cooper attend the Arop Charity Gala At the Opera Garnier under the auspices of Madam Maryvonne Pinault on March 9, 2016 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MARCH 08: Bradley Cooper and Irina Shayk attends the Red Obsession party in Paris to celebrate L'Oreal Paris's partnership with Paris Fashion Week. L'Oreal Paris spokesmodels accessorised with accents of red to celebrate the launch of the new Color Riche La Palette on March 8, 2016 in Paris, France. (Photo by David M. Benett/Dave Benett/Getty Images For L'Oreal)
PARIS, FRANCE - MARCH 08: Bradley Cooper and Irina Shayk attend the L'Oreal Red Obsession Party as part of the Paris Fashion Week Womenswear Fall/Winter 2016/2017 on March 8, 2016 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MARCH 08: Cyril Chapuy, Lewis Hamilton, Bradley Cooper Irina Shayk attend the Red Obsession party to celebrate L'Oreal Paris's partnership with Paris Fashion Week on March 8, 2016 in Paris, France. L'Oreal Paris spokesmodels accessorised with accents of red to celebrate the launch of the new Color Riche La Palette. (Photo by David M. Benett/Dave Benett/Getty Images For L'Oreal)
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