A peacock may live in a harem of up to five peahens. If they can get more than one female they are happy to do so.
It is the male peacock who attracts it female towards it by showing its dance and spreading its beautiful wings. So it depends on female to mate with it or not. It is very common in birds that they select a single fellow to mate in one season so no point of having two or more female peacocks. Female peacock is dominant in this case