EXCLUSIVE: HBO is looking to add more estrogen to its current slate of all-guy comedy series: Entourgage, Eastbound & Down, Curb Your Enthusiasm, Bored to Death, Hung, The Life and Times of Tim and How to Make it America. A new comedy project staring and produced by Tea Leoni is in serious consideration for a pilot pickup at the pay cable network, whose biggest comedy hit was the female-centered Sex and the City. Like Sex and the City, the Tea Leoni comedy, tentatively titled Spring/Fall, also takes place in New York City. It is set against the backdrop of New York’s fashion world and stars Leoni as half of a dysfunctional partnership between two women with different approaches to career, family, and friendship. Kate Robin who was a writer/producer on HBO’s Six Feet Under, wrote the script. She and Leoni are executive producing Spring/Fall with documentary filmmaker R.J. Cutler, who knows a thing or two about fashion having directed The September Issue documentary last year. Leoni’s manager, Jimmy Miller, also executive produces. This is a nice get for HBO: for the past decade, Leoni has been probably the most consistently pursued comedic actress for pilots on broadcast and cable but had declined to return to TV until now. With the exception of a guest spot on her husband’s Fox drama The X-Files in 2000, Leoni, repped by UTA and Mosaic, has not done television since the end of her NBC comedy series The Naked Truth in 1998. HBO already has a female-centered comedy series coming out next year: the Mike White/Laura Dern vehicle Enlightened.