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The usually very quiet Natalie Portman is speaking up -- and out -- against the nasty rumors that she and Sean Penn are getting it on.
"Sean Penn is a friend and colleague," the actress told UsMagazine.com. "The reports that we are romantically involved are completely untrue."
First Star reported that the pair were seen making out at a hotel in Hollywood in March, then the New York Post reported that Nat and Sean were just recently "cavorting."
"I normally do not respond to rumors about my private life, however, this repeatedly fabricated story has forced me to do so," Nat added to her statement.
Sean filed for legal separation from wife Robin Wright Penn at the end of April, while Natalie broke off her relationship with rocker Devendra Banhart last September.
But I believe Natalie -- you?