From wiki

“An analysis of female bonding among wild bonobos by Takeshi Furuichi stresses female sexuality and shows how female bonobos spend much more time in estrus than female chimpanzees.”

“Males engage in lengthy friendships with females and, in turn, female bonobos prefer to associate with and mate with males who are respectful and easygoing around them. Because female bonobos can use alliances to rebuff coercive and domineering males and select males at their own leisure, they show preference for males who are not aggressive towards them.”