Hollywood Madam Heidi Fleiss has hooked up with Dennis Hof, owner of Moonlight BunnyRanch, Nevada's most famous legal brothel.

Fleiss recently got in touch with Hof to get his advice on the brothel she wants to open in Nevada. She flew out from L.A. He showed her around the state. Now, Hof tells us, "We're [bleeping] every day."

"This is so out of character for both of us," Hof, 58, adds. "I usually go out with girls who get carded at the door. But Heidi [who is around 39] has so much drive, she reminds me of myself. She's a standup gal - she never turned her clients in."

But, having escaped a brutal relationship with actor Tom Sizemore, Fleiss isn't ready to book any Vegas wedding chapels.

"Dennis is romantically involved with every girl around him," she tells us. "I'm always single." (Indeed, she's also been seeing TV actor Al Sapienza.)

Hof believes in catering to all incomes; Fleiss wants to build a 40-acre high-end sex resort modeled after the Beverly Hills Hotel.

"She said her clients will pay a minimum of $5,000," says Hof. "I told her there aren't enough of those guys. But I found out she's right. I brought Penthouse Pets to the BunnyRanch. She wants girls who look like they stepped out of Vogue."

While Fleiss says she isn't taking on any partners in her passion palace, she is talking with Hof about teaming up for a reality show on HBO.

She may join him here at Thursday's premiere of the third season of "Cathouse," HBO's "America Undercover" documentary series about the Bunny-Ranch.

Hof, who's also been talking with publisher Judith Regan about book and TV ideas, told us about the latest installment of the successful "Cathouse" series.

"This one will be more about the lives of the girls," says the Barnum of booty. "But there'll still be a whole lot of sex."

H'wood's family values

Former Disney President Michael Ovitz once had his spokesman call a journalist in response to a story that alleged he and DreamWorks honcho David Geffen were enemies. "They're friends," the flack said.

"No, they're enemies," the journalist insisted.

"Sure, they're enemies," the publicist responded. "But they're still friends."

L.A. Weekly columnist Nikki Finke shares this morsel in her droll Fade-In magazine essay on how Hollywood resembles the Mafia.

Geffen himself is said to have dropped manager Sandy Gallin from his circle of friends, Finke writes, after he learned Gallin told a mutual pal that Geffen was overcharging him for a Malibu summer rental.

Despite the fierce bloodletting among studio heads, common interests sometimes bring them together.

When Brad Grey took over as Paramount chairman earlier this year, Finke writes, "He did what any new don would: He made peace with all the other business families by quietly visiting his studio-head rivals."

Jethro-Opie, Round 2

"Beverly Hillbillies" star Max Baer Jr. is madder than ever now that he's seen how director Ron Howard portrays his late prizefighter father as a sadistic lout in "Cinderella Man."

Howard has said he wanted the audience to view Max Baer Sr. through the eyes of hero Jimmy Braddock's terrified family.

"That's dishonest," says Baer. "As bright as Ronny is, it shows his lack of ability."

Baer is more tolerant of "Cinderella" star Russell Crowe.

Asked about Crowe's arrest last week, Baer tells us: "He's a great actor. So he was arrested.

I slapped ['Dallas' star] Victoria Principal on Sunset Blvd. back in 1970. She deserved it. She was acting like a b--. They arrested me. But the DA didn't press charges because the whole thing was bulls-."

Still, he wouldn't mind mixing it up a little with Crowe.

"He's got 30 years on me, but I'd box him three three-minute rounds," crows the man who played Jethro Bodine. "I'm 6-4 and do 300 to 400 crunches a day!"

Not so gay Paris?

Not everyone is buying Paris Hilton and her mom, Kathy, as as gay-rights activists.

The Hiltons, who served as grand marshals of L.A.'s CSW Gay Pride Parade yesterday, ran into some skeptics at the Christopher Street West Women of the Year awards Wednesday.

"Why have you decided now at this time to come out and do this?" one guy asked Kathy, who happens also to be pushing her new reality show.

Worried that the crowd thought she was a lesbian, Mrs. H sputtered, "Well, really now, I have been happily married for 25 years. We are just here because we love all you guys. Thanks!"

P.S. Rumors that Paris might be expecting were drowned the other night when she pounded Patron tequila shots at Miami's megaclubs Mansion and Prive.

Oh, and did you know that her beau, Paris Latsis, was born Paris Kasodokostas? Star mag reports his father, a former water-skiing instructor, was married only briefly to his mother, shipping heiress Marianna Latsis. Paris later took her surname in what society columnist Taki Theodoracopulos dubs "a big bow to the money."

Side dish

Madonna left Kabbala Centre rabbis Yehuda and Philip Berg cooling their heels Thursday night. Donna Karan and other friends came to Solo, the glam kosher palace on Madison, to celebrate Philip's birthday. Her Madgesty? She was tied up giving Warner Music honchos Edgar Bronfman, Tom Whalley and Lyor Cohen a listen to her new album...

Rachel Perry, who hosts the VH-1's hit "Strip Search," certainly has gotten into her work. The beauty, who peels in the new issue of Stuff, says she's sometimes tempted to pinch the posteriors of her show's male contestants. But she got more than she bargained for with John Mayer. The Grammy winner not only told Perry how a childhood operation affected his nether regions, he showed her, according to an interview with Sirius Satellite Radio's Rock Chick ...

Ashton Kutcher and MTV were really upset when one of their "Punk'd" missions - with rapper Lil Jon - backfired. Apparently MTV and Ashton spent a lot of money and months planning a secret operation. Lil Jon was supposed to be on a private plane to Las Vegas, but customs agents claimed he and his entourage were boarding a plane bound for Ecuador. Lil Jon was onto them within minutes. He recognized some of the actors posing as security, told Ashton to come out from the back of the plane, and said, "Come on, you can't punk the motherf--ing King of Crunk!"