Red hot: Scarlett Johansson and Penelope Cruz share a kiss

Two of Hollywood's most lusted after actresses Scarlett Johansson and Penelope Cruz are set to steam up screens with a lesbian kiss.

The racy scene, set in a red-tinted photography dark room, features in Woody Allen's upcoming release Vicky Cristina Barcelona.
Red hot: Scarlett Johansson and Penelope Cruz share a kiss in a photography dark room in the upcoming film Vicky Cristina Barcelona

The women later have a menage a trois with Oscar winning actor Javier Bardem.

Allen's muse Johansson plays Christina, one of two American backpackers in Spain who get involved with a painter (Bardem), and his jealous ex-girlfriend, played by Penelope Cruz.

A source told the New York Post's Page Six column: "It is extremely erotic. People will be blown away and even shocked."
Girls on film: the movie, directed by Woody Allen, was filmed in Barcelona last year
Woman on the moment: Woody Allen again cast his muse Scarlett in a leading role

Cruz and Bardem's on screen chemistry was more than just fine acting - the pair sparked a romance while filming the movie Barcelona in their native Spain last year.

There are even rumours Bardem, who won an Oscar this year for his role in No Country For Old Men, proposed to the actress during a recent trip to France.

Both Johansson, who became engaged to actor Ryan Reynolds last week, and her costar Cruz are expected to attend the Cannes Film Festival this week to promote the new film.
Passionate: Scarlett shares another steamy scene with Javier Bardem, who is Penelope's real life boyfriend