I thought you might find it interesting that historically there were women who...did not live according to your description...(New Yorker)
"The best accounts of “Amazon sex,” meanwhile, suggests that it “was robust, promiscuous. It took place outdoors, outside of marriage, in the summer season, with any man an Amazon cared to mate with.” (Among some groups, “the sign for sex in progress was a quiver hung outside a woman’s wagon.”)
And maybe "spreading seeds" is totally unrelated to brain activity or in fact as many South Asian philosophies declare exactly the reverse, the more you spread the less you have...hahahaha