Lowe tells Vanity Fair that in past days, he and Sheen "competed to see who could play harder, then show up for work."
Lowe recently finished his autobiography and shared excerpts with the magazine. He calls Sheen "a wonderful mix of nerd and rebel" and speaks of days when the two were relatively unknown actors who plotted their careers in Sheen's pool.
Sheen has made headlines for his wild partying. He was fired from his hit CBS show, then alleged breach of contract and sued the show's producers.
The May issue of Vanity Fair will be on newsstands in New York and Los Angeles on Thursday and across the nation April 5.
