Paulina Porizkova, 55, bares all as she defends Elizabeth Hurley

A week after 55-year-old Elizabeth Hurley caused a stir by posing without a top — a move some critics decried as “attention-seeking” and inappropriate — Paulina Porizkova is following suit.

While she’s no stranger to a bikini photo shoot, Porizkova, also 55, bares even more in her latest Instagram. The former Sports Illustrated Swimsuit Issue cover girl is completely nude in the racy shot, which appears to have been taken in her bedroom.

In her caption, the ‘80s-era supermodel defends Hurley and muses on how men perceive a woman’s nudity differently as she ages, twisting something once so in demand into a “desperate” act. Porizkova — who has spoken publicly about feeling a lack of interest from her husband, the late Ric Ocasek, prior to their 2017 separation — drew from her own experiences with aging.

“Put your clothes on,” Porizkova wrote. “Today, on a serious note, thoughts inspired by the brouhaha around a sexy photo of [Elizabeth Hurley]. When I was in my 20s and 30s, the less I wore — the more popular I was.

“In my 40s, I could walk around practically naked and illicit nothing more than a ticket for public indecency,” she continued. “At 50, I am reviled for it. ‘Put on your clothes, Grandma. Hungry for attention, are you? A little desperate here? You’re pathetic.’

“Why is sexiness and nudity applauded in a woman’s youth and reviled in her maturity? Because of men. Men are biologically programmed to spread their seed, inserting themselves into fertile containers which advertise their viability through youth. What does this say for men who do not want children? Men who have all the kids they wanted? Men who don’t want kids right this second? Unevolved.

“And what does this say for women like myself, who need to be validated by the male gaze? Insecure.

“The only thing that is pathetic here is allowing others to set your priorities.”

She signed off with two of her go-to hashtags: #SexyHasNoExpirationDate and #BetweenJLoandBettyWhite.

Porizkova — who responded with only a coy emoji when a commenter asked who took the intimate photo — received a flood of praise for being so candid.

“That last line is everything!” read one comment. “I’m in my 20s and I can’t tell you how much I respect you. I can only hope I embrace aging as gracefully as you have.”

“Wish I had your confidence, girl,” another fan wrote, prompting the model to respond, “I’m faking it!”

“I can’t tell if this was taken 20 years ago or today,” one follower told the Pilates buff. “You are timeless and sexy and society needs to shut up.”

Read more from Yahoo Life:

• How Camila Alves McConaughey went from eating chocolate every morning to ditching sugar entirely: ' If I did it, you can do it'

• Demi Moore, 58, walks Paris Fashion Week runway in revealing tuxedo-style look

• Shawn Johnson East on protecting her mental health as a pregnant mom with a toddler: 'I know I’m at my most vulnerable'

Want lifestyle and wellness news delivered to your inbox? Sign up here for Yahoo Life’s newsletter.