Nicky Hilton looks stylish in a colorful set by Valentino

Nicky Hilton looks stylish in a colorful set by Valentino as she lounges in the bathroom

Nicky Hilton is now a model! Paris Hilton’s younger sister shows off a Valentino suit and handbag while lounging in a BATHROOM at The Plaza Hotel in NYC

Nicky Hilton beamed while modeling for fashion brand Valentino on Instagram on Thursday.

The 39-year-old daughter of fashion designer Kathy Hilton sat on the sink in an ornate bathroom at The Plaza Hotel in New York City while wearing a matching set from the Italian luxury fashion brand.

Her outfit contrasted starkly with the white and gold bathroom, where she was photographed carrying the matching set and a pale pink bag, also by Valentino, next to her.

Lots of color: Nicky Hilton beamed in a new photo set for Valentino on Instagram on Thursday

Lots of color: Nicky Hilton beamed in a new photo set for Valentino on Instagram on Thursday

She captioned her post on social media, “Impromptu Bathroom Break Series.”

The night set she wore was black with colorful flowers and butterflies on the buttoned top and ankle length pants.

Her top had black feathers protruding from the sleeve cuffs, and she paired the ensemble with black pointed heels.

The blonde beauty posed cross-legged on the sink, looking both away from and into the camera.

Beauty queen: The 39-year-old socialite sat on the sink in an ornate bathroom at The Plaza Hotel in New York City while wearing a matching set by the Italian luxury fashion brand

Beauty queen: The 39-year-old socialite sat on the sink in an ornate bathroom at The Plaza Hotel in New York City while wearing a matching set by the Italian luxury fashion brand

Shining girl: The bombshell wore a black nightie with colorful flowers and butterflies on the buttoned top and ankle-length pants

Shining girl: The bombshell wore a black nightie with colorful flowers and butterflies on the buttoned top and ankle-length pants

Nicky’s blonde hair was styled to perfection, with slight waves at her shoulders. In one shot, she had the front of her hair tied back in a clip, which could be seen in the mirror behind her.

As for makeup, she opted for a very elegant look with glowing skin, shimmery eye shadows and natural lips.

She also wore a large silver necklace, silver earrings, and multiple rings.

The mother-of-three, along with her sister Paris Hilton, 41, and her mother Kathy, 63, have worked with Valentino for several years.

Sister Sister: Nicky and her sister Paris have been working with Valentino for several years and have shared the brand's latest campaigns on their social media accounts;  seen together for Valentino The Party Collection

Sister Sister: Nicky and her sister Paris have been working with Valentino for several years and have shared the brand’s latest campaigns on their social media accounts; seen together for Valentino The Party Collection

Hot mom: The mother of three has also done several photoshoots and campaigns with Paris during her stint as an American socialite, including shoots with Vogue and Billboard;  seen for Valentino The Party Collection

Hot mom: The mother of three has also done several photoshoots and campaigns with Paris during her stint as an American socialite, including shoots with Vogue and Billboard; seen for Valentino The Party Collection

The sisters have done several photo shoots and campaigns together during their stint as American socialites, including shoots with Vogue and Billboard.

Valentino made her wedding dress in 2015 when she married her husband, bank heir James Rothschild.

The dress was a bespoke lace embroidered gown in three shades of ivory and silver guipure glittered with hand embroidered crystals. It also featured a high neckline and balloon skirt.

Family Values: Famed fashion designer Katy Hilton is Paris and Nicky's mother and the three have filmed together for several brands including Valentino;  seen at her family's Christmas party in 2022

Family Values: Famed fashion designer Katy Hilton is Paris and Nicky’s mother and the three have filmed together for several brands including Valentino; seen at her family’s Christmas party in 2022

A princess: Nicky wore a lace embroidered dress made to measure by Valentino for her wedding to James Rothschild in 2015.  seen at their wedding in London, England

A princess: Nicky wore a lace embroidered dress made to measure by Valentino for her wedding to James Rothschild in 2015. seen at their wedding in London, England

James is the founder and managing partner of Tru Arrow Partners. Tru Arrow is a global growth technology company built on family capital.

The couple recently welcomed their third child in July 2022, whose name has yet to be revealed to the public. They also have two daughters, Lily-Grace, six, and Teddy, five.

Before marrying James, she was married to Todd Meister, but the two divorced after less than a year of marriage.