Billy Goat's Fucking

In 1916, Dr. Brinkley got a job as a doctor for the animals they kept on hand at a meatpacking plant in Kansas City. He later recalled being impressed by their considerable lubricity - which he thinks means Billy Goat vaginas get really lubed up. In Vienna, physiologist Eugene Steineck proposed that youthful fatality could be restored by increasing levels of testosterone. Sperm production wasted testosterone and if the channel leading from the testes to the ejaculatory duct were tied off, blood levels of testosterone would rise.