Lisa Rinna in bikinis to commemorate "another tour around the sun."

the 59-year-old Real Housewives of Beverly Hills star showed off her flawless physique in a series of swimwear photos.

"an extra Sun-centered orbit. It is 59 now "In the caption of a photo of herself in a Melissa Odabash bikini with a safari print,

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Rinna boasted about her physique. She finished her look with a bucket hat with prints.

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With activist and fellow model Paulina Porizkova writing: "And killing it," Rinna's followers didn't waste any time expressing their ideas.

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There has never been a 59-year-old who looked better! Added TV producer and showrunner Gary Janetti.

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Congratulations on your birthday, you enduring icon! Written Hilton Perez. "HAPPY BIRTHDAY STUNNER," said RuPaul's Drag Race judge Michelle Visage.

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Fashion designer Marc Jacobs wished Lisa a happy birthday. Leslie Jordan, an actor, wished his beloved a happy birthday.

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Rinna has consistently accepted her age and urged her followers to do the same.

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After one of Porizkova's Instagram fans criticised her for uploading a photo of herself wearing a white bikini, she defended Porizkova in May.

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Porizkova shared a remark made by an online troll at the time, which read: "You must be in tremendous pain if you're still posting bikini images at your age.

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I've always thought that those who were attractive had the worst time ageing and become ugly.

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The fall from grace was far more dramatic when you were beautiful. I hope you can acknowledge your mortality."

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Porizkova responded to the troll by reposting the bikini picture and writing, "There is no such thing as ugly and elderly, only shortsighted and uninformed.

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Rinna replied by posting a picture of herself wearing an olive-green string bikini and a similarly strong statement.

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"Paulina Porizkova shared a photo of herself in a bikini and she was branded old and unattractive for doing so,"

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the Days of our Lives alum tweeted. Consider me "old and ugly" since I'm 58.

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