Christian Grey and Anastasia Steele have finally kissed.

Filming for the Fifty Shades of Grey movie began last week. Today, pictures of the leads, Jamie Dornan's Christian Grey and Dakota Johnson's Anastasia Steele, showed the characters smooching for the first time. The kiss is only a tenth of a percentage of how hot and heavy the E.L. James novel is, but it does represent the start of a very naughty movie.

Christian and Anastasia shared their first on-set kiss outside of kinky billionaire Christian Grey's business, Grey Enterprises. Dornan wore a gray tailored suit, a well-ironed white shirt and a flashy watch that is hard to miss. Meanwhile, Johnson wore a maroon dress and a tan trench coat; her brunette hair was waxy and casual.

In the photo, Anastasia is seen leaning over to kiss Christian on the cheek as he holds her arm, looking worried. According to Us Weekly, director Sam Taylor-Wood gave Dornan and Johnson pointers on the scene in between takes.

Physical chemistry between Dornan and Johnson is essential to the film's success. Dornan is aware of this and is not scared of getting close to Johnson.

"I grew up in a very liberal place," he told Entertainment Weekly in November. "I'm not saying we had a playroom, but I'm not shocked by [the sex in the book]. It's essential to tell the story. I can't believe films that don't invoke the sexual side of it. So it works for me."

Johnson is preparing for her sex scenes by preparing her body

"Obviously I want to look good naked," she said. "I totally understand now why people exercise because it kind of fucking feels awesome."

Check out more pictures here. Do Dornan and Johnson have the sexual chemistry needed to be true to the Fifty Shades of Grey book?

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