Recognized as a way to build and maintain a network of mutually beneficial relationships, nonreproductive sex no longer requires special explanations. Homosexuality, for example, becomes far less confusing, in that it is, as E. O. Wilson has written, "above all a form of bonding…consistent with the greater part of heterosexual behavior as a device that cements relationships.
( Christopher Ryan )
[ Sex at Dawn: How We Mate, Why ]
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