It took Perkins 10 days to write the first draft of Sex and the Single Zillionaire, the story of a lonely Wall Street titan who agrees to appear on a reality TV show similar to The Bachelor. In real life, Perkins was approached for this role, turned it down and then tried to convince his ex-wife, romance novelist Danielle Steel, to write about it. She declined and suggested that he write the story instead. Perkins, who had read Steel's manuscripts for years, tapped out a 288-page book, to be published by Regan Books this month. "I had a lot of help in the editing stage from Danielle Steel and Judith Regan," Perkin says and adds proudly, "but there was no ghost writer on this." The book is his.