Those pygmy chimps only have .6 DNA differential from humans, can't we adopt their social and sexual customs? We'd be the happiest species on the planet!
From Wiki:
Sexual intercourse plays a major role in bonobo society observed in captivity, being used as what some scientists perceive as a greeting, a means of conflict resolution, and post-conflict reconciliation. Bonobos are the only non-human animal to have been observed engaging in all of the following sexual activities: face-to-face genital sex, tongue kissing, and oral sex.<22> (Although a pair of Western Gorillas have been photographed performing face to face genital sex <23>) In scientific literature, the female-female behavior of touching genitals together is often referred to as GG rubbing or genital-genital rubbing.
The sexual activity happens within the immediate family as well as outside it. Bonobos do not form permanent relationships with individual partners. They also do not seem to discriminate in their sexual behavior by sex or age, with the possible exception of abstaining from sexual intercourse between mothers and their adult sons; some observers believe these pairings are taboo. When Bonobos come upon a new food source or feeding ground, the increased excitement will usually lead to communal sexual activity, presumably decreasing tension and allowing for peaceful feeding.<24>
And the link:
http://en.wikipedia.org/wiki/Bonobo