Is Anne Heche Writing “Tell-All” Book About Ex Ellen DeGeneres?

Anne Heche is working on a “tell-all” about ex-partner Ellen DeGeneres, claims Star, which says the actress will “dish the dirt on their romance in an upcoming book.”

A so-called “source” for the tabloid says, “Their breakup was bitter, and Anne can be a spiteful person. The buzz is that she’s been working with an author who is spilling the beans about Ellen.”

“One thing is for sure: Anne won’t paint Ellen in a positive light,” continues the supposedStar snitch, who claims, “Anne would certainly talk about Ellen’s control issues and reveal intimate details about their darkest fights.”

Now DeGeneres is supposedly “terrified about what Anne might reveal,” alleges the magazine, adding the daytime talk show host is fearful the book “could seriously tarnish her public image and seriously upset Portia[de Rossi].”

Star and its “source,” however, are woefully misinformed.

A rep for Heche tells Extreme Entertainment exclusively that there is “not one shred of truth” to Star’s story — the actress is NOT writing a book, let alone a mean-spirited “tell-all.”

Whoops!