SISTERS Khloe Kardashian and Kylie Jenner have flaunted their shrinking frames while wearing skintight sparkling dresses.

A Kardashian fan account reshared footage of the sisters’ sweet slow dance.

Khloe Kardashian and Kylie Jenner danced at a Christmas partyCredit: Instagram/kylie.saver

Khloe and Kylie showed off their sparkling dressesCredit: Instagram/kylie.saver

Fans have become concerned with Khloe and Kylie’s weight lossCredit: Instagram/Khloekardashian

In the brief clip, Kylie, 26, wrapped her arms around Khloe, 39, as they moved back and forth.

As they spun around, the Good American founder donned a grayish ensemble with an extended tail.

The Kylie Cosmetics founder wore a golden gown and flaunted her matching heels.

The siblings loosed their stylish hair and glammed up for the Christmas Eve party.

Their sister Kim Kardashian, 43, hosted a festive party at her $60 million mansion in Hidden Hills, Los Angeles.

Guests were treated to expensive activities, including sledding on a fake snow mountain and an A-list performance by singer Babyface.

In the comments section, an eagle-eyed critic pointed out their drastic weight loss and said: “What is with her butt? Not the same.”

HITTING THE GYM

Khloe’s thinner appearance came after she uploaded several intense workouts from her home gym.

Her recent weight loss has worried fans after the Hulu star showcased her tiny backside and concave stomach in a gym selfie.

She wore a white sports bra, sweatshirt, and leggings in the sweaty snapshot.

One concerned fan pointed out: “What stood out to me the most lately was the skinny-ness of her arms and around the shoulders…”

Another concerned fan mentioned: “Khloe looks scary skinny now! Her ribs are out!” added another.

Fans speculated Khloe hit the gym to deal with the heartache of her ex-baby baddy Tristan Thompson, 32, fathering a love child with his ex-mistress Maralee Nichols, 33, while he was supposed to be in an exclusive relationship with Khloe.

The TV personality shares her 5-year-old daughter True Thompson, and her 1-year-old son Tatum, with the Cleveland Cavaliers player.

TOO THIN?

Although Kylie has not commented on her shrinking butt, many fans believed the former E! star secretly removed her breast implants and rumored butt implants.

Followers jumped to the comments section and pointed out her changed shape.

One person said: “I love how nobody is talking about her obvious weight loss.”

Another person added: “How much pressure do you feel to have to be ‘perfect’ all the time?”

A concerned fan chimed: “A little extra healthy weight makes people look a lot more youthful than if they were skinny, droopy and gaunt.

“Being very thin ages the crap out of people, and they verge on looking unwell. It’s not sexy or attractive.”

A commentator theorized: “She does not look like she is into the hard work of any sort like going to a gym.

“So yeah, definitely Ozempic and plastic surgery.”

The TV personality was previously linked to her ex-baby daddy, Travis Scott, and shares her children: daughter Stormi, 5, and son Aire, 1.

Also at the Christmas party, fans claimed they spotted her boyfriend Timothee Chalamet, 28, at the party.

Khloe and Kylie pictured with their childrenCredit: Instagram

Kim Kardashian pictured with Khloe and KylieCredit: Instagram