AceShowbiz -

Kristen Stewart is reportedly undergoing sex change. The "American Ultra" actress is allegedly considering sex change because her ex-boyfriend Robert Pattinson is about to tie the knot with his fiancee FKA twigs.

Aussie Network News recently published an article with the headline, "Kristen Stewart, Robert Pattinson Breakup: Actress Does Sex Change". The article, however, was mainly about Kristen's interview with Nylon Magazine regarding her gender preferences and didn't cite any sources regarding the alleged gender reassignment surgery.

Parent Herald referenced the report and published another article with the headline, "Kristen Stewart Undergoes Sex Change." That site then wrote, "A recent report suggests that Kristen Stewart may be ready to undergo sex change because she cannot move on from her ex-boyfriend."

While Kristen's rep hasn't made any comments yet. The report has been debunked by Gossip Cop. The site points out that "expressing the fluidity of one's sexual preference and undergoing a surgical procedure to become transgender are two entirely different things." The site says Aussie Network News and Parent Herald "are nothing more than a lame attempt to rope Stewart and Pattinson into a baseless article."