CHRISTINA AGUILERA - FICTIONAL AGUILERA SISTER IN MOVIE DEBUT

CHRISTINA AGUILERA's fictional younger sister is poised for international fame on the big screen - thanks to her creator ANDY DICK.

The popular American comedian's alter-ego DAPHNE AGUILERA - an even raunchier version of her real-life sister - has become the focal part of a "truly outrageous" movie script, according to a Hollywood insider.

The source tells gossip site THE SCOOP, "He's really expanding her as a personality.

"Daphne will start showing up at lots of hot New York parties and she has even posed for an ad for PEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS (PETA) declaring that 'fur is a drag'.

"She's a tramp with principles."

The insider also dispels fears the DIRRTY singer will be offended by the film, adding, "From what I hear, Christina thinks Daphne is hilarious."