Femee domonanta in sex
The role of a dominatrix may not even involve physical pain toward the submissive; her domination can be verbal, involving humiliating tasks, or servitude.
"A simple example is the relationship between us and chimps which looks like a V," said Patrik Lindenfors, a zoologist at the University of Virginia, Charlottesville.
"Chimps are on one tip of the V, with us on the other, and our common ancestor at the bottom.
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The influence of televised models on toy preference in children// Sex roles, 1982.