Vote: What is the hottest Hollywood sex scene ever?

Mickey Rourke and Kim Basinger in '9 1/2 Weeks.' (Warner Bros.)

Hollywood sex scenes are about to become a thing of the past.

Studio bosses are ordering stars to cover up and stay out of the sack - because celluloid romps no longer sell.

Film expert Vincent Bruzzese told the Sunday Times this weekend: "Sex scenes used to be written to spice up a trailer. But all that does today is get a film an adult-only rating and lose a younger audience.

"Today such scenes are written out by producers even before they are shot," Bruzzese said. "They ask: do we really need the sex? Can we fill the space with dazzling special effects instead and keep the family rating."

Before we bid farewell to onscreen sex for good - let's celebrate the very best knee-trembling cinematic clinches.

Take a look at our shortlist below and tell us which is the hottest sex scene in Hollywood history.

Go to The Sun to vote. Warning: Some scenes are NSFW.