Marxists, since Marx & Engels themselves, have always believed that only a socialist revolution could open the way to sexual freedom and equality. In order to show that a free, unalienated future of love and pleasure in personal relations possible, we need to understand the past and present of human sexuality and its relationship to the economic and social foundations of society. We need to show effectively that all human sexual practice is socially constructed. This pamphlet aims to outline the roots of gay oppression under capitalism, and by extension, how gay liberation is tied to the fight for workers revolution.