An article was changed on the original website

Gina Gerson is ready to play a sexy grandma

Gina Gershon begins a two-week run at Café Carlyle (35 E. 76th St.) on Tuesday.Don Flood / AUGUST

“There are some days I feel 102 years old, and other days, like I’m 14,” says Gina Gershon, who falls somewhere in between. “I just think we’d be a much happier society if there weren’t any mirrors, and the idea of age and numbers didn’t exist!”

Gershon would rather not see her own age in print, but she’s never shied from playing women of any vintage, persuasion or size, as long as the part intrigued her — from the jaded diva of “Showgirls” to the hot-to-trot Hasidic dry cleaner of “Curb Your Enthusiasm.”

Mother roles? Bring them — and sexy grandmother roles, too — on. “Not only would I play a MILF, but I’d be into playing a GILF,” Gershon tells The Post over lunch. “Look at Cloris Leachman.”

Now the woman who once played Sally Bowles on Broadway is making her Café Carlyle cabaret debut in a show called, “Wild Women Don’t Get the Blues,” which starts its two-week run on Tuesday. Backed by a four-piece band, she’ll sing and play the jaw harp, a twangy, bite-size mouth instrument that’s also known as the Jew’s harp.

“I can say it’s a Jew’s harp, because I’m Jewish,” she says. “Sometimes I call it ‘the Chosen instrument.’”

‘I just think we’d be a much happier society if there weren’t any mirrors, and the idea of age and numbers didn’t exist!’

With her glowing skin and sleek figure, you’d suspect someone who grew up a “total tomboy” in California’s San Fernando Valley is a health nut, but she claims otherwise.

“I love junk food,” says the actress, now based in New York. “Burgers, cookies and any sort of chocolate.”

Chalk it up to her genes. She says that not only have she and her sister inherited their mother’s kewpie-doll lips, but the Gershon women also have beautiful skin.

“So does my aunt,” she says. “She does nothing and still looks fabulous.” She herself relies on serums to save face. She also swears by what she calls her “retox, detox” strategy.

“If you go out to a party and drink tequila, the next day you have to go to yoga class and steam and drink tons of water.”

She does flow yoga, in a warm room, and hikes and swims whenever possible. As for her beverage of choice: “I only drink silver tequila or mezcal [because] I like the way it makes me feel — and [for] its medicinal purposes.”

She says the “best” diet she ever did was a regimen that relied on tequila and chocolate pudding from the Odeon. Taking little bites and sips of each for a week left her 5 pounds lighter. Then again, she says, she had a parasite, “so maybe it wasn’t the diet.”

Gina Gershon in "Showgirls"
Gina Gershon in “Showgirls”United Artists/Everett Collection
Gina Gershon alongside Jennifer Tilly in 1996's "Bound."
Gramercy Pictures/Everett Collection

Some roles have taken a toll on her body, she says. While making 1995’s “Showgirls,” her face swelled up: “You try putting three layers of jewels and [fake] eyelashes on your eyes and then taking them off.”

To play the lean, lanky Corky — Jennifer Tilly’s lover in the 1996 indie thriller “Bound” — she started boxing. She says her agents urged her to forgo that role, telling her that playing a lesbian would “ruin my career.” She took it anyway, and never regretted it.

“So many women told me how this movie helped make it OK to be who they were,” says Gershon, who’s straight and shares her downtown digs with her 20-pound cat, Lord Louis Azuzu.

She was also advised not to play the singer of 2003’s “Prey for Rock & Roll” unless her 40-year-old character was rewritten as a 35-year-old. Again, Gershon held fast, arguing that age was an integral part of her character: Having 50 looming ahead made the stakes higher for her as a would-be rock star.

For now, she’s thrilled to hit the stage on her own. She recently saw 90-year-old cabaret legend Marilyn Maye’s show and was floored. She says she called her mother, who’s 86 — “but she looks 68” — to rave about it.

“I hope I’m kicking up my legs like that at 90!”

Football news:

This is the best Milan in years: superkambekom with Juve (3 goals in 5 minutes!) saved the intrigue in Serie A
Zlatan Ibrahimovic: I am the President, player and coach! If I had been in Milan since the start of the season, we would have taken the scudetto
Sarri on the defeat by Milan: we played first-class football for 60 minutes. Then-turbidity
Pioli on the victory over Juve: Milan became a team. We can play even better
Pioli beat Juventus for the first time as a coach
Vardy has scored 10 goals for Arsenal in Premier League matches. Only Rooney has more
Ronaldo scores or gives an assist in 17 consecutive Serie A matches, where he scored 25 (21+4) points