Kim Kardashian and Ivanka Trump go glam in coordinating black gowns at Fontainebleau Las Vegas opening

Kim Kardashian and Ivanka Trump got all gussied up in glamorous gowns for a night out in Sin City.

The two gal pals were attending the grand opening of Groot Hospitality venues Komodo, Papi Steak and Liv Las Vegas at the new luxury resort Fontainebleau Las Vegas on Wednesday night.

The former first daughter, 42, wore a stunning strapless Monique Lhuillier gown with a silver-paneled skirt.

Meanwhile, Kardashian, 43, stunned in a form-fitting black knit dress and accessorized with a diamond choker necklace.

“Ladies night at LV!” Trump captioned a photo with the Skims founder on her Instagram Story Thursday.

In another snap from their night, Ivanka added, “It’s always a great time with you @KimKardashian.”

The two have become close friends as of late, with Trump sporting an all-white sequined crop top and leg-baring skirt at Kardashian’s birthday party in September.

The close friends were attending the opening festivities for Groot Hospitality venues Komodo, Papi Steak and Liv Las Vegas at the new Fontainebleau Las Vegas. Instagram/@ivankatrump

A spy exclusively tells Page Six that Trump arrived at the event on the earlier side and walked the red carpet while Kardashian showed up later with sister Kendall Jenner, who stunned in a corseted black gown as well.

We’re told Trump and Kardashian then linked up to privately eat dinner in the back of Komodo before heading over to the theater to watch Justin Timberlake perform.

During the “SexyBack” singer’s set, Kardashian and Trump were seen sitting with Jenner and David Grutman.

The Skims founder, Trump and Kendall Jenner dazzled in long gowns. World Red Eye

Following the show, we hear Chrome Hearts co-founder Laurie Lynn Stark invited Kardashian, Trump and Jenner to see the brand’s new store in the resort.

The trio was also joined by Jonathan “Foodgod” Cheban, Lenny Kravitz, Fontainebleau CEO Jeff Soffer and more.

“The store wasn’t open to the public but it was a private celebrity moment,” the spy adds.

“Ivanka didn’t leave Kim’s side,” the spy tells Page Six. AFP via Getty Images

Kardashian, Trump and the rest of the crew kept the night going by making their way to nightclub Liv where they got in the DJ booth as Peggy Gou spun tunes.

“Ivanka didn’t leave Kim’s side,” the spy said.

We hear Kardashian and Trump were laughing throughout the evening and both made their exit well after midnight.

Additional celebrities at the grand opening included Quavo, Sylvester Stallone, Aaron Paul, Bryan Cranston, Tommy Hilfiger, Noah Tepperberg, Rande Gerber and more. 

The former first daughter and Kardashian also scoped out the new Chrome Hearts store at the resort. kimkardashian/Instagram

Donald Trump’s daughter, who lives in Miami, had been hitting the Miami party circuit last week amid Art Basel Miami Beach.

She and her husband, Jared Kushner, were spotted grooving in the DJ booth at the opening party for new hotspot Casadonna. Ivanka also attended an intimate brunch hosted by Spanish-Parisian fashion designer Maria de la Orden.

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While Kardashian surprisingly didn’t have a presence at this year’s Art Basel celebrations, it could be because her ex-husband, Kanye West, showed up to the coastal Floridian city late Sunday and was seen partying at megaclub E11even without shoes on.

Ivanka was seen making the rounds during Art Basel Miami Beach. kimkardashian/Instagram

The Yeezy founder was then spotted with his wife Bianca Censori while debuting his new music on Monday and Tuesday.

West, who was canceled after several antisemitic rants, shocked fans yet again when he wore a KKK-style hood as he performed.

His eldest daughter North, 10, also took to the stage to perform a verse alongside her dad.