RICHARD JOHNSON: Paige Spiranac, ex-golfer and sex symbol, plays for charity; the lowdown on Casa Cipriani, and more

Paige Spiranac, who gave up on professional golf when she unwittingly became a sex symbol, still plays for charity.

She’ll join celebs Michael Strahan, Ja Rule, former Yankees pitcher CC Sabathia and golf great Gary Player at a tournament benefiting City Harvest at the Alpine Country Club in Demarest, N.J., on Oct. 25.

The event, founded by master marketer Herb Karlitz, also features top chefs Marcus Samuelsson and Geoffrey Zakarian.

“I’m just this girl who likes to play golf,” Spiranac told me. “Right after college, I didn’t know what to do with my life. After I won a tournament, I was sitting with my mother at an ice cream shop and my phone blew up.”

Photos of Spiranac had gone viral.

After winning the 100th Colorado Women’s Golf Association Match Play Championship in 2015, Spiranac was unaware that a Total Frat Move article was encouraging people to check the golfer out online. Her Instagram following jumped from under 10,000 to over 100,000 in just two days. She’s now at more than 3 million and counting.

“I never had media training. I didn’t know what to do.” She figured it out.

City Harvest’s mission is to feed the 1.5 million New Yorkers experiencing food insecurity as the city grapples with the economic fallout of the COVID-19 pandemic.

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In one of the most uneven trades ever, Jean-Michel Basquiat painted three portraits of Joan Agajanian Quinn and gave them to the film producer in return for two joints.

Quinn was the West Coast editor of Andy Warhol’s Interview magazine in 1984 when Warhol came to visit with Basquiat.

“Andy said to Joan, ‘If you can find Jean-Michel some marijuana, he will do your portrait,’” Warhol satellite Richard Dupont, of the Dupont twins and who is friends with Joan, told me.

“Joan had two old joints that drag queen Divine left at her Beverly Hills home and she brought them over to Andy and Jean-Michel at the Beverly Wiltshire Hotel,” Dupont said Joan related to him. “I wish Andy had phoned me.”

Quinn also has four Don Bachardy portraits on exhibit at the Bakersfield Museum of Art in California, along with works by David Hockney and Ed Ruscha.

The only person with more Don Bachardy portraits is celebrity chef Sandra Lee’s new man Ben Youcef, who has five.

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Casa Cipriani — the new nightspot in the refurbished Battery Maritime Building — is beautiful. At least that’s what I hear, because it’s a private club, open only to members and their guests.

The membership fee is $3,500, but plenty of people who are willing to pay are apparently being turned down because they don’t pass muster with Giuseppe Cipriani, 56, or with his son Maggio, 32, who seems to be in charge.

“It’s the hottest private club in the city. People are dying to get in,” one recent visitor told me.

The Ciprianis spent several hundred million dollars converting the 125-year-old Beaux Art ferry building at the foot of South St. into the club, a huge fitness gym, a ballroom seating 800 guests and 47 hotel rooms starting at $1,000 a night and going up to $9,000 for the presidential suite.

Julian Schnabel did six big paintings for the ballroom. They have to compete with views of the Statue of Liberty.

“It feels like you’re going on an ocean liner,” said my source.

Among the celebs spotted there: John Legend and Chrissy Teigen, Usher, Alicia Keyes and Swizz Beatz.

Sources say the club has 1,500 members so far, but will slowly climb to 4,000. Candidates must be recommended by two members.

Private clubs are more popular than ever in New York. Zero Bond on Bond St. is said to charge $1,500 for membership.

Annabelle’s, the London club long rumored to be coming to New York, is said to be taking over the E. 61st St. townhouse where Orson Welles once lived and where Charlie Palmer launched Aureole.

As at other Cipriani hotspots, some of the crowd doesn’t seem to be members. Said my source, “Late in the evening, a parade of attractive young women arrive.” And they don’t pay for drinks.

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The heroine in “Last Call For a Deadly Diva” bears a striking resemblance to the novel’s author Flo Anthony.

“Valerie Rollins is my alter ego. She’s who I’d like to be,” Anthony told me. “The only difference is I never married a black billionaire.”

Like Anthony, the fictitious Valerie works daily as a radio host and columnist. Valerie’s business partner is NFL Hall of Famer turned private investigator Rome Nyland, who resembles Anthony’s footballing friends, Marcus Allen and Willie Gault.

When she’s not gossiping and writing novels, Anthony represents former boxing champion Michael Spinks.

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Eight film buffs walked out of the “Spencer” screening at the Hamptons Film Festival. Kristen Stewart, who plays Lady Di, “will get an Oscar nomination, but the film is a royal mess,” said a source … Talia Reese, who performs at Comic Strip Live on Oct. 30, says, “My orgasms are elusive. They’re like that friend that keeps texting you, ‘I’m on my way! I’ll be there any minute!’ and then she never shows up.”