A New York “puppy actress” that has a supporting role in the much-hyped "Sex and the City" movie was chosen for the part because of her -- brace yourself -- humping ability.

Gidget Gormley, whose owner likes to call her a "New Yorkie" terrier, stars as Samantha's (Kim Cattrall) dog in the movie.

Michael Patrick King, the writer-director, cast the sexually precocious dog based on her unique ability to hump on cue.

Says Cattrall, “She was very sweet and incredibly over-prepared for her role. I particularly loved it when we had matching outfits. It’s tough working with animals because sometimes they’ll do it and sometimes they won’t. But she was very well-trained.”

According to the U.K.'s Sun newspaper: "... Kim Cattrall as sex-mad Samantha may steal all the big laughs with the help of a humping dog..."

More behind-the-scenes details about the Yorkshire terrier's adventures in filming the movie can be found on Gidget's blog. 

Gidget is owned by music company executive Mary Gormley.

Her resume includes TV, print and film projects from all over the world, and she can next be seen on the big screen this fall alongside Paris Hilton in the film, “Pledge This.”

A portion of Gidget’s earnings goes towards Friends of Snuffy, a non-profit animal organization located in upstate New York.

(Photos courtesy of gidgetgormley.com)