Bethenny Frankel Walks the Runway in a Teeny-Tiny Thong Bikini — and Does a Cheeky Reveal

The ‘RHONYC’ alum modeled several looks on the catwalk for ‘Sports Illustrated Swimsuit’ on May 31

Bethenny Frankel walks the runway for Sports Illustrated Swimsuit on May 31, 2025.

Bethenny Frankel just hit the runway in several sexy swimsuit looks, but the showstopper was a cheeky polka-dot bikini!

On Saturday, May 31, the Real Housewives of New York City alum, 54, hit the catwalk at Sports Illustrated Swimsuit’s runway show for Swim Week 2025, modeling a range of sexy swim looks.

At the show, which was held at W South Beach hotel in Miami Beach, Fla., Frankel danced down the runway, shared sweet moments with other models and even hit some on-theme moves — depending on the swimsuit.

While modeling a high-waisted, leopard-print one piece, the star paused briefly to put her paws up and roar, and when she rocked a denim bikini set and cowboy hat, she tipped the Western accessory at the crowd.

But the real showstopper was a polka-dot string bikini, which was teamed with a sheet, black mini sarong — only for Frankel to ditch it after reaching the end of the catwalk.

After dance-walking in the sexy, fuchsia and black swimsuit — which featured O-rings on the top and bottom — down the runway, the RHONYC alum paused to strike a more serious pose and untie the black cover-up.

Then, in a moment that was almost as cheeky as her pink polka-dot bottoms, Frankel balled up the sarong and threw it off of the catwalk.

Frankel then gave the bikini its full moment. She turned around to show off the revealing backside of the cheeky swimsuit bottoms, and struck a flirty pose while doing so. The star then put her hand up to her mouth — as if to say “oops” — before turning to strut back.

SI Swimsuit and Frankel shared a joint Instagram post of the star’s cheeky mid-runway moment and, in the caption, the magazine wrote, “Nailed it” — and the comments seemed to agree.

“Coming in hot 🔥,” wrote Chris Appleton, while Daniella Monet said, “It’s such a yes.”

Frankel, who announced her permanent move to Florida last month, shared several posts reflecting on the experience on Instagram — including a photo and video dump featuring fellow SI Swimsuit runway models Remi Bader and Stassi Schroeder.

“All the pretty girls walk like this… Some pre and post show moments with the incredible women of @si_swimsuit,” the Bravo star captioned the post. “This runway show was such an amazing experience and I am forever grateful to my community here in Florida and the people for your endless support. ❤️.”

In another Instagram post reflecting on the show, she said the overall theme of the experience, to her, was “women supporting women.”

“I didn’t know much going into it. I mean, I know it’s a magazine, and I know that once a year they do a swimsuit issue. What I didn’t know is what the culture is like there, and I didn’t know who 90% of the women were. I will tell you that the resounding theme and culture is women supporting women,” Frankel said in the June 1 video.

This culture, the RHONYC alum continued, “is something that so many women cosplay, and perform." In all of her experiences in the entertainment and fashion industries, Frankel said, she has “never seen the level of female support” that she experienced at the show.