I'm interested in any works on the topic of controlling sexual desire, especially through chemical (pills) or physical (castration) means rather than social or educational . They can be grounded in research or speculative - even science fiction dealing with interesting reworkings of human sexuality and how they might play out are welcome. I'm curious to learn about the intersection of sex and power again in the broadest terms from any source you found interesting. I'm also curious about any case studies on people who lost their ability to feel sexual pleasure or orgasm (for example brain trauma). Related information on non human animals also welcome.