She will be at the low-security Florida prison, which holds around 500 female inmates.

While she may be getting older, the Basic Instinct star is only getting more beautiful.

Stone posed in a pair of bright green bikini bottoms. She slung a striped towel over her shoulders as she laughed at the pool.

The star wrote a simple caption for her photo, “Gratefully Imperfect on a Perfect Day.”

Unsurprisingly, the photo went down a treat with Stone’s followers, who were quick to praise the natural beauty.

Whitney Cummings called Stone an “I C O N” in the comments, while actress Joely Fisher called her: “Haute.”

“And like a goddess, she laughs at the mortals,” added model Paulina Porizkova, 57.

Other people praised Stone for promoting positive aging. “Embracing our aging bodies is difficult. Thank you for showing us that we are beautiful no matter our age or what life has done to our bodies. We are still beautiful and amazing,” they wrote.

This isn’t the first time that Stone has made headlines.

Last month, the Casino star took to social media to reveal that she has had nine stillbirths.

Stone opened up about her loss in a post from People magazine, where Dancing With The Stars performer Peta Murgatroyd revealed that she had suffered a miscarriage while her husband was in Ukraine.

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“We, as females don’t have a forum to discuss the profundity of this loss. I lost nine children by miscarriage,” Stone wrote.

She continued “It is no small thing, physically nor emotionally yet we are made to feel it is something to bear alone and secretly with some kind of sense of failure.”

“Instead of receiving the much-needed compassion and empathy and healing which we so need. Female health and wellness left to the care of the male ideology [have] become lax at best, ignorant in fact, and violently oppressive in [the] effort,” she added.