Polyandry exists in certain parts of the world and in certain parts of Nepal. I read this a while back, there is a tradition in Malaysia (certain location, don't remember where) if a husband likes a girl/woman he goes and tells his wife, his wife acts as a mediator and arranges for the husband to spend the night with that girl. There are very different practices and culture exists in the world, polygamy is one of them and it exists even in US. Check - www.pro-polygamy.com or search google. -Shiv