Screenwriter and playwright Phyllis Nagy revealed this week that writer Patricia Highsmith enjoyed having sex with women but preferred the company of men.

Nagy wrote the screenplay for the lesbian romance film Carol – considered an Oscar contender – which she adapted from Highsmith's novel The Price of Salt, first published in 1952.

In her early 20s, Nagy met and befriended Highsmith.

“As far as I'm aware, it was the first relatively mainstream lesbian novel to be published that included not only a relatively happy ending, but it did not include the death of one of its lesbian heroines, or one of them going to an insane asylum or nunnery,” Nagy said during an appearance on NPR's Fresh Air.

Nagy added that Highsmith at one point attempted to date men.

“The unwholesome truth about Pat is she was a lesbian who did not very much enjoy being around other women,” Nagy said. “So the attempt to dabble with one man seriously, and perhaps a few others along the way, was to just see if she could be into men in that way, because she so much more preferred their company. Pat would've been a great member of [Mad Men's agency] Sterling-Cooper ... and really, I think, that was the formative psychological trait ... that she really didn't like women. She liked to have sex with them and she liked them to go home and shut up, but she much preferred the company of males.”