VC,
I think you could include all animals, not just humans. I can not recollect any female, including insects, that do not dictate when breeding begins.
I kinda' think we are lucky---at least female humans have a psychological and emotional aspect to sex, whereby they initiate intercourse for pleasure as well as procreation.
I believe we are
very lucky in that regards! Now if my wife would only buy into the " it gives me more energy" or " it increases my intellectual appetite" type jargons, life would be super-sweet
S&R