Bonobo's live in social groups that are called fission-fusion social groups. Essentially it is one large group of individuals who a belong to smaller sub groups. These sub groups vary in sizes from as small as one individual or all the way up to twenty or more. These sub groups live in a social structure of multi male and multi female. While these bonobo groups vary in sex, they also vary in both old and young age.
When the male and female bonobo's engage in sex they are usually found in ventral ventral and dorsal ventral positions. Homosexuality is very common in bonobo's where often you will see two females rubbing their genitals with one another which is known as GG rubbing. It is also common to see males performing sexual acts with one another genitals, such as penis fencing.
Bonobo's live in a multi male multi female group where there is no set pair of mates. In other words bonobo's live in a promiscuous society where one monkey is just as likely to mate with another in terms of multiple partners. When it comes to determining to mate with a male bonobo there is one major factor taken into consideration, which is male dominance. The higher dominant status a male has, the higher mating success the male will have with the female.
Bonobo's are not known to display aggression when handling their conflicts. Bonobo's are known as one of the more peaceful primates and they usually handle conflicts with sexual acts. Bonobo's often use sex as a way of tension and stress reduction, which also helps decrease aggression amongst one another. This also helps bonobo's interact with one another in a calm state of mind when things such as new food sources or even a female estrus comes into play. This form of tension reduction also helps sociability between bonobo's and decreases sexual dimorphism.