Some really good ones here. My favorites from the list:
"I believe that sex is one of the most beautiful, natural, wholesome things that money can buy."
"Having sex is like playing bridge. If you don't have a good partner, you'd better have a good hand."
"Sex at age 90 is like trying to shoot pool with a rope."
"Women might be able to fake orgasms. But men can fake whole relationships."
Click the link to find out which celebs said the above as well as read other quotes.