This is the Tsubo Pregnancy Clinic, run by ``professional child-makers'' who use their own bodies as practice grounds to instill the most successful method of insemination, using the latest infertility treatment that has not yet become popular in Japan or even Europe and the United States. The curriculum starts with the collection of semen samples, which is strictly a medical procedure. Everything from guidance on insertion angles to perverted manipulative sexual intercourse techniques using yoga techniques and advanced techniques such as understanding the appropriate ejaculation position.