Warren Beatty’s daughter ‘to have sex change op’

American actor Warren Beatty’s daughter with wife Annette Bening is living as a man and she has plans of undergoing a sex change operation, according to US media reports.

The couple’s daughter, 18-year-old Kathlyn Beatty, has named herself Stephen and is attending college dressed as a man, according to the National Enquirer.

Kathlyn is said to have started a Facebook page with her new male name and also posted a picture of her in a men’s suit and tie, reports The Telegraph.

Kathlyn is the eldest daughter of Beatty and Bening, who have three children.

She is said to have told her parents that she would turn into a man once she turns 18.

“Annette still remains very cose to Kathlyn. And while Warren loves his daughter and will never turn his back on her. This experience is crushing him,” a source told the tabloid.