Scarlett and Penelope go lesbian

Scarlett Johansson and Penelope Cruz will have "lesbian sex" in Woody Allen's upcoming film Vicky Cristina Barcelona.

A source claims, "It is extremely erotic. People will be blown away and even shocked. Penelope and Scarlett go at it in a red-tinted photography dark room, and the whole scene will leave the audience gasping."

Both actresses will even have a threesome in the film. The movie is about two American tourists that spend a hot summer in Spain. They meet an eclectic artist and his sexy wife, and all become "sexually entangled." Throw water on the fire!

Take a sneak peek!