Jennifer Lopez flashes her derriere in barely-there dress as she marks her 46th birthday

SHE was already the star attraction, however Jennifer Lopez made doubly sure all eyes were on her as she stepped out in Southampton, New York, last night.

Jennifer Lopez turned up the heat in New York last night

The Hollywood beauty, who turned 46 the previous day, put her incredible curves in the spotlight in a very daring, sheer dress.

It was impossible to miss the actress’ iconic bottom thanks to her ensemble’s raunchy, mesh sides, as well as her her ample chest in the busty frock.

Wearing her newly cropped tresses down in a soft wave, the mother-of-two caused quite a stir in her cut-out LBD, complete with plunging neckline and backless detail.

Jennifer was accompanied by her beau Casper Smart, 28, who kept hold of her hand as they strutted into hotspot, 1 OAK.

The actress pulled out all the stops to makr her birthday at 1 OAK

Jennifer’s bottom was clearly visible thanks to her dress’ sheer sides

In a number of Instagram shared by her pals, the stunner could be seen partying with the likes of Fat Joe and Khloe Kardashian’s ex French Montana.

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The film star was accompanied by her beau Casper Smart

The singer’s ample chest was also hard to miss

Her on/off beau Casper also marked her big day by taking to social media to post a photo of himself.

On Thursday he wrote: “Smiling because do you know what tomorrow is?”

Earlier the month, Jennifer was brimming with confidence when she unveiled her brand new bob in a sexy selfie – fully aware that she would look good with any kind of hairstyle.

Jennifer shared a photo as she marked her birthday as a toddler