British actress Kelly Brook has become a fan of porn thanks to her sexy X-rated "Piranha 3D" co-star Riley Steele.
 
Brook, who has dated Billy Zane and Jason Statham, admits she has been checking out Steele in action since the pair became friends on the set of the 2010 fishy film.
 
She tells Britain's Sunday Sport newspaper, "Riley and I became really good friends, and I was really intrigued by what she was doing and how she got into it. I was really impressed by how much she enjoyed what she did and I admired her and became a big fan of her work."
 
Brook and Steele shot an underwater lesbian scene for "Piranha 3D."

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