The HBO series, broadcast here on Channel 4, deals with women's relationship issues and often focuses on intimate sexual matters. Star said there are usually two men - himself included - and two women on the writing team.
Many of the ideas, including some he described as 'eye-opening' come from these women's real life stories. But his description of the process suggested the men were very much in charge of the script.
'There have always been women [writers] that have come and gone and are in the room with us,' he said.
Star, who also created Beverley Hills 90210, Melrose Place and Grosse Point, said television was more ratings driven than ever before.
Grosse Point, which is a drama about the catty behind the scenes behaviour on a Beverley Hills 90210-type show, was axed after its first series. It got good reviews but not knock-out ratings, he said.
If this lust for ratings had been the case when Melrose Place and Beverly Hills 90210 first started, they would have been cancelled early on without getting a chance to develop, he added.