WWW- Have the king and queen of American prostitution found true love in each other?

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.”