He says acceptance of his lifestyle had to come from within, but he was afraid. Martin says one of the reasons why he kept his homosexuality hidden was because he was told by some that it would hurt his career.
The 38-year-old, who is the father of two boys born via surrogate in 2008, said he couldn't continue to hide his sexuality now that he is a father: "Enough is enough. This has to change."
Martin's book is still a work in progress.