180
https://www.reddit.com/r/TwoXChromosomes/comments/4earct/why_some_women_prefer_to_watch_gay_male/
181
Ogas O., Gaddam S. A Billion Wicked Thoughts: What the Internet Tells Us About Sexual Relationships.
182
Pound N. Male Interest in Visual Cues of Sperm Competition Risk. Evolution and Human Behavior. 2002; 23(6): 443–466.
183
Birnbaum G. Beyond the borders of reality: Attachment orientations and sexual fantasies. Personal Relationships. 2007; 14(2): 321–342.
184
https://web.stanford.edu/class/history13/earlysciencelab/body/femalebodypages/genitalia.html
185
Heggie V. ‘Legitimate rape’ – a medieval medical concept. The Guardian. Aug. 20, 2012.
186
https://www.royalcollection.org.uk/sites/default/files/Leo%20languages_Russian_0.pdf
187
Isherwood C. Christopher and His Kind. (1976). Farrar, Straus and Giroux.
188
Shadle A., Smelzer M., Metz M. The Sex Reactions of Porcupines (Erethizon d. dorsatum) before and after Copulation. Journal of Mammalogy. 1946; 27(2): 116–121.