Bunny Ranch

Bunny Ranch owner Dennis Hof says the two hookers who snapped a pic with Bill Clinton at a charity event last week were invited guests of his ... and nobody kicked them out of the party.

Hof tells TMZ ... he was approved by the charity to bring two dates to the Unite 4 Humanity event -- Barbie Girl and Ava Adora -- and even promoted the charity's party to his supporters via newsletter.

The HBO star says his entire group went through security and were given wristbands because they were all on the list ... and not one of them was kicked out of the party -- despite sources close to the event claiming otherwise.

Dennis adds, "how the f*** did we get there if we weren't invited?!"

Ever wonder what it takes to be a whore? Here's a quick list of requirements from Nevada's famed Moonlite Bunny Ranch brothel: weekly STD testing ... your own personal sex toy collection ... an endless supply of condoms ... lube ... and $25 a day.

The list of must-haves is outlined in a contract signed by Bunny Ranch whore "Jimi Lynn" -- who's currently being sued by the Ranch for failing to report more than $300,000 in gifts she allegedly received from one of her johns.

According to the lawsuit, Lynn is required to give the Ranch 50% of everything she makes in the line of duty -- including the cash value of all gifts she receives -- and the Ranch is out for its cut.

Lynn's contract was submitted as part of new legal docs in the lawsuit -- and it's pretty hilarious.

By signing the contract, Lynn agreed to pay the Ranch $25 a day for room and board, which gives her a bed to sleep in, plus two meals.

According to the contract, drugs are not allowed in her whore room at any time. All whores are also forbidden from seeing their johns outside the whore house.

And this is nice -- no whore will be forced to bang a man she does not want to bang.

There are no sex quotas either -- a whore may bang as many people as she wishes.