Models Camille Kostek, Katie Austin strut in cheeky bikinis for SI Swimsuit runway show

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Denise Austins SI Swimsuit model daughter says 66-year-old mom is all-natural

Katie Austin, a fitness instructor and health coach, is following in the footsteps of her famous mother Denise Austin. She is featured in the 2023 issue of Sports Illustrated Swimsuit.

Supermodel Camille Kostek, rookie Katie Austin, Christen Harper and more showstoppers turned up the Miami heat at the 2023 Sports Illustrated Swimsuit Runway Show.

On Friday, Kostek, 31, did not disappoint on the fashion runway as she struck a pose in two different bikinis at Miami Swim Week's hottest show hosted at the W Hotel. 

The former Patriots cheerleader flaunted her bikini body in a bright orange-red cut-out swimsuit and showed off her toned abs. She covered up her beach bum with a white netted sarong down the runway. 

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Camille Kostek flaunted her bikini body in a bright orange-red cut-out swimsuit and showed off her toned abs at the 2023 Sports Illustrated Swimsuit Runway Show. (Getty Images)

Her second look consisted of a white one-piece swimsuit with a sheer beach cover-up dress over the summer ensemble. 

Camille Kostek's second look consisted of a white one-piece swimsuit with a sheer beach cover-up dress over the summer ensemble.  (Getty Images)

Katie Austin, daughter of fitness icon Denise Austin, showed off her dance moves in cheeky string bikinis on the Sports Illustrated Swimsuit Runway. 

Katie Austin, daughter of fitness icon Denise Austin, showed off her dance moves in cheeky string bikinis on the Sports Illustrated Swimsuit Runway.  (Getty Images)

Austin, 29, rocked two crisscrossed swimsuits in purple and white. She flipped her beach-waved hair, with a few braids and was all smiles having a blast at the fashion event.

Katie Austin, 29, rocked two crisscrossed swimsuits in purple and white. She flipped her beach-waved hair, with a few braids and was all smiles having a blast at the fashion event. (Getty Images)

Last year, Denise and her daughter made a major splash at the 2022 Sports Illustrated Swimsuit Runway Show.

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The mother-daughter duo wore sand and bronze-hued string bikinis as they proudly flexed their beach-ready bods.

Katie Austin and Denise Austin walk the runway for Sports Illustrated Swimsuit Runway Show During Paraiso Miami Beach on July 16, 2022. (Getty Images)

Christen Harper, 28, made a bold statement on the catwalk by wearing a black stringed bikini with a white cropped graphic T-shirt over her swimsuit. 

Harper's shirt read, "My body is the least interesting thing about me." As she proudly wore the statement shirt, her wavy brunette hair flowed past her shoulders with a few braids twisted in her hair. 

Christen Harper, 28, made a bold statement on the catwalk by wearing a black stringed bikini with a white cropped graphic T-shirt over her swimsuit.  (Getty Images)

For Harper's second look, she stunned in a sparkly two-piece swimsuit and strutted her bikini bod down the runway.

Christen Harper's second look was a sparkly two-piece swimsuit, as she strutted her bikini bod down the runway. (Getty Images)

According to SI Swimsuit, Harper grew up in Southern California and began pursuing a modeling career at age 20 to help pay her way through college. The outlet described how she often received pushback from agents and clients to lose weight, but Harper chose to continue modeling without shrinking herself to fit into the standard sizing of the fashion world. She was the winner of the 2021 Swim Search and was introduced as a rookie last year with Katie Austin. Last June, the model revealed that Lions quarterback Jared Goff popped the question.

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One of the 2023 Sports Illustrated Swimsuit Rookies of the Year, Mady Dewey, left little to the imagination, as she wore a netted one-piece swimsuit with white bottoms.

Dewey is a cohost of the "Socially Well" podcast and product marketing manager for Discord, according to Sports Illustrated. 

Rookie model, Mady Dewey, left little to the imagination, as she wore a netted one-piece swimsuit with white bottoms. (Getty Images)

It was a fabulous family affair for the Nader sisters at the 2023 Sports Illustrated Swimsuit Runway Show. 

Brooks Nader was joined by her stunning siblings Mary Holland Nader, Grace Ann Nader and Sarah Jane Nader. 

The Nader sisters stole the show in all-white bikini ensembles. 

(L-R) Mary Holland Nader, Brooks Nader, Grace Ann Nader and Sarah Jane Nader walk the runway during Sports Illustrated Swimsuit Show during Miami Swim Week at W Hotel Miami Beach. (Getty Images)

New mom Nicole Williams English bounced back from her pregnancy and fiercely walked her toned bikini body down the runway. 

She had a special guest on the catwalk during the major fashion event, her daughter India! 

While English rocked a white cut-out swimsuit, she held her precious baby girl. India wore a blush-pink tutu and a matching headphone set to complete her fashionable look.

New mom Nicole Williams English bounced back from her pregnancy and strutted her toned bikini body down the runway.  (Getty Images)

English, who is one of SI Swimsuit’s 2023 rookies, made the surprise revelation that she was pregnant while walking down the runway last year. The 35-year-old is married to NFL player Larry English and welcomed their daughter earlier this year.

Larry English and Nicole Williams English walks the runway for Sports Illustrated Swimsuit Runway Show During Paraiso Miami Beach on July 16, 2022 in Miami Beach, Florida. (Getty Images)

SI Swimsuit Legends Samantha Hoopes, Carol Alt, Roshumba Williams, Vendela Kirsebom and Elsa Benitez closed the 2023 major runway show.

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Samantha Hoopes, Carol Alt, Roshumba, Vendela Kirsebom and Elsa Benitez walk the runway during Sports Illustrated Swimsuit Show. (Getty Images)

Each veteran swimsuit model sported a colorful bathing suit and has been featured more than 30 times in total over the years.

Fox News Digital's Stephanie Nolasco contributed to this report.