According to one report, Dunst and Bloom were spotted locking lips and acting like a couple this past weekend at Hollywood hot spot Chateau Marmont.
But a rep for the actress says the rumor that they're more than just friends simply isn't true.
"They are not dating. They are and have always been friends," Stephen Huvane told The ShowBuzz Tuesday.
Both of them have had steadies in recent years: Dunst, 24, has had an on-and-off relationship with actor Jake Gyllenhaal ("Brokeback Mountain"). The England-born Bloom and "Superman Returns" star Kate Bosworth split in September after dating for several years. Shots of Bosworth looking dangerously thin have surfaced in magazines since their break-up.