Twinrova

Kotake and Koume, collectively referred to as the Twinrova Sisters , are a pair of Gerudo witches who play an important role in a few games in the series. They are both the surrogate mothers of the Gerudo King, Ganondorf, being somewhat his more devoted servants. They can brainwash others to serve Ganondorf (they do so to Nabooru in the Spirit Temple of Ocarina of Time) and merge to form the stronger witch Twinrova. The brooms the sisters use to fly become scepters through which Twinrova channels her power. They portray the same characters in The Legend of Zelda: Majora's Mask, though they are more benevolent than their Ocarina of Time counterparts. In Oracle of Seasons and Oracle of Ages, the Evil Gerudo Witches Twinrova enact a plot to resurrect Ganon.

Recourses

http://en.wikipedia.org/wiki/Twinrova#Twinrova