Lauren Sánchez celebrates 54th birthday in red-hot cutout dress in St. Barts

She’s painting the town (or yacht) red.

Lauren Sánchez wore a plunging dress to celebrate her upcoming 54th birthday over the weekend, sharing some snaps of herself and girlfriends aboard what appears to be fiancé Jeff Bezos’ yacht, Koru, as they partied in St. Barts while wearing coordinating red ‘fits.

“The day before my birthday I’m overwhelmed with love and gratitude to be celebrating with these incredible women who are such a big part of my life. (Some are not here🥲)” Sánchez, 53, wrote on Monday.

The former news anchor — who got engaged to the billionaire in May — continued, “These women are not just friends, I consider them family, I trust them and love them deeply. Let’s not forget I also just have so much fun with them! ❤️.”

In the pics, Sánchez and her pals sported sassy red dresses as they posed aboard a yacht, with the birthday girl rocking a low-cut Nensi Dojaka number ($3,980 $1,990) with cutouts and sheer panels under the bustline.

Sanchez posed with friends (L to R) Lydia Kives and Jamie Sherrill, her sister, Elena Blair and pals Elsa Collins, Veronica Grazer and October Gonzalez. Lauren Sanchez
The group wore coordinating looks to celebrate Sanchez’s birthday. Lauren Sanchez

The future Mrs. Bezos wore her hair down in a voluminous look, accessorizing with a gold “B” necklace.

The piece isn’t the only Bezos-related jewelry she owns; Sánchez has been spotted wearing a $4,400 custom Alison Lou diamond necklace reading “Mrs. B.”

While the helicopter pilot sported a maxi dress, her sister, Elena Blair, and several of her friends rocked short looks as they partied the night away.

The bride-to-be got into the party spirit. Lauren Sanchez

Plenty of fans and famous friends wished Sánchez a happy birthday in the comments section, like Kris Jenner, who wrote “Happy Birthday!!!!!!!! Enjoy every moment!!! ❤️🥰😍🥳🎂 love you!!”

Kim Kardashian added, “HAPPY BIRTHDAY BABE!!! ❤️💋♥️” while

Celebrity stylist Victoria Trilling was loving the red look, tagging Sánchez’s stylist and writing, “And can we pls discuss that red dress @miss_kellyjohnson 🔥🔥🔥.”

Sanchez’s sister, Elena Blair, shared a photo of the group enjoying St. Barts over the weekend. elenasblair_photography/Instagram

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Along with her red-hot birthday look, Sánchez also sported a summery ensemble in St. Barts on Sunday as she took a walk hand-in-hand with Bezos after being spotted dancing on a table at local hotspot La Petite Plage.

The future bride wore a white Chanel Formula 1 T-shirt ($4,450), which she had cropped into a belly-baring style, with a pair of Chanel fringe-trimmed tweed shorts as they took a walk on the sunny island, with Bezos looking casual in a simple white tee and pale blue chinos.

As for her actual birthday, we have a feeling she’ll be bringing out more celebratory looks on Tuesday.