5. Hinduism
Probably of all religions out there, Hinduism is the first one that comes to mind concerning sexual open-mindedness. It’s only enough to mention Kamasutra to realize how sex is considered an important part of human life, according to this religion. Of all the sexual philosophy, guidelines, lively pictures and reliefs on temples, this religion does not mention anything particular on issues such as LGBT, for example. For this reason, Hinduism is the last, but not the least important among the top most sexually liberated churches and religions in the world.