IRINA SHAYK may have only welcomed her first child with Bradley Cooper a couple of months ago, but she’s already managed to lose her baby weight and has been taking to social media to show off her incredibly trim physique.

LA MODELO IRINA SHAYK IMAGEN DE LA CAMPAÑA DE LA REVISTA SPORT'S ILLUSTRATED 2011 Hawaii, 17/02/2011

The 31-year-old is thought to have given birth to daughter Lea De Seine on March 21 and after sharing a bikini-clad snap on Instagram last month, Irina has now taken to the site once again to show off her pert derrière in a pair of tiny yellow thong bottoms.

The beauty seemingly went topless for the sizzling snap, with her being face down in the pool, while floating with her arms stretched out in the water.

Swimsuit 2015: Hawaii Irina Shayk NA/NA, Kauai, Hawii 4/28/2014 X158020 TK5 Credit: Yu Tsai Swimsuit by: Heidi Klein

Irina failed to state her whereabouts and instead simply captioned the photograph with a wave emoji.

Unsurprisingly, the picture went down an absolute storm with Irina’s 8.3 million followers.

ddOne person posted: “WOW, WOW……” alongside two love heart emojis, while another yelped: “I need a doctor!”

Irina’s latest social media offering comes after she showed off her post-baby body in a black two piece, while posing on a lip-shaped lilo.

The black design was perfect for offsetting Irina’s tanned skin, while the bikini’s cut-out detailing across the bust emphasised her ample assets.

“Pre-sunset #currentsituation,” the mother-of-one captioned the envy-inducing snap.

aaFans were left in shock at Irina’s fast body transformation as they flocked to the comments section in disbelief.

“Wow but you just had a baby,” one gasped, before another chimed: “I can’t believe she just gave birth.”

“If this is your post baby bod then you are a magician,” a further enthused.