High Quality Content by WIKIPEDIA articles! The National Coalition for Sexual Freedom (NCSF) is a pro-sexual freedom, advocacy and educational organization founded in 1997. With more than 50 Coalition Partners and over 100 supporting organizations representing thousands of consenting adults who engage in alternative lifestyles, NCSF is the only organization in the United States with a dedicated mission to advance the cause of tolerance, non-discrimination and education for adults involved in alternative lifestyles. The organization is based in Baltimore, MD. All donations to the NCS Foundation are tax deductible. In the past decade, alternative sexual expression has become much more visible to the general public, bringing about an increasing number of attacks.