Useful Notes / Westermarck Effect

The Westermarck Effect is commonly brought up in the midst of shipping arguments shipping discussions where incest, cousins, and childhood friends are involved. A form of reverse sexual imprinting, the Westermarck Effect serves to suppress inbreeding in humans, working in opposition to the theorized genetic sexual attraction phenomenon. The following factors are known to be involved:

For further reading, see The Other Wiki's article on this here.