Sofia Richie Posts Her Mom Diane Alexander's SIZZLING Swimsuit Body!

Diane Alexander makes jaws drop in her swimsuit!

Sofia Richie shocked her 8.1 million Instagram followers when she posted a sizzling hot photo of her mom wearing sexy swimwear. The mother-and-daughter tandem recently spent some time under the sun during their trip to the South of France ahead of Richie's wedding to Elliot Grainge.

The fashion designer, 24, took to her Instagram Stories and shared the picture of the "Forget Paris" star relaxing on the lounge chair in a one-piece that did nothing but favors for her sensational curves.

Even at 55, Alexander looks insanely sexy in her swimsuit with colorful prints. The piece perfectly showed off her stellar figure, boasting a tight fit and a daring neckline that teased her midriff in addition to tastefully displaying her perky cleavage. Her swimwear was cinched at the chest line, with halter-style straps wrapping behind her neck, creating a deep-cut line that gave fans a tantalizing peek at her décolletage. In addition, the backless style exposed more skin. The look accentuated her flat midsection while showing off her legs thanks to its flattering yet extremely high cut.

Alexander decided to ditch the accessories, except for a pair of diamond stud earrings. She pulled her dark locks up in a high ponytail, which helped highlight her striking features.

Alexander struck a pose by touching the back of her neck using her left hand. Meanwhile, she positioned her right hand over her face in an attempt to cover her face from the bright sunlight. The former dancer closed her eyes and smiled while her picture was being taken.

While feeling proud of her mom, Richie wrote on the snapshot, "K my mom wins."

The next picture showed Alexander and Richie sitting side by side on two separate loungers. They leaned close to each other with their knees bent as they worked the camera.

Richie rocked a bikini with white and pink gradient colors that popped against her sun-kissed complexion. The top boasted fully lined triangle cups and a plunging neckline that put much of her décolletage in full view. It also featured two pairs of thin straps tied over her neck and around her back.

The matching bikini bottoms had tie sides that stretched high above her hips. Its front side dipped low, highlighting her taut tummy and abs. The thong also had high leg cuts that showed off her shapely pins.

In the pic, Sofia labeled her mom as her "twin."

As reported by HollywoodLife, exact details about Richie and her fiancé's special day have yet to emerge. However, an insider previously revealed that the youngest daughter of singer Lionel Richie has been bonding with her sister Nicole, 41, over planning her "dream" wedding.

"The two of them would talk about their wedding when they were little girls, and it has really gotten them closer than they ever have," the source said. "Sofia looks up to Nicole when it comes to fashion, and she knows that her sister wants her to look like the most beautiful bride ever on her day."

Richie reposted a number of snaps to her Instagram Stories shared by her pals who were with them on the trip.

One of her friends captioned a picture, "Here we go!" and added the bride emoji, hinting that the wedding could be taking place any day now.

Richie got engaged to the music label exec in April 2022. Grainge popped the big question on one knee, surrounding the love of his life with rose petals and candles overlooking the ocean. Richie was barefoot, wearing a lovely floral dress during the gorgeous proposal.

The socialite shared the news via an Instagram post with a caption, "Forever isn't long enough @elliot."