Midori (美登里 Midori?) is a prominent human sexuality writer, speaker, and sex educator based in San Francisco, California. Her writings and contributions have appeared in many books and magazines. Her specialties include in-depth knowledge of general sexuality as well as alternative sexual practices, including BDSM and sexual fetishism. Midori was born in Kyoto, Japan of Japanese and German parents and raised in a feminist intellectual Tokyo household. Midori is also active in helping various causes, such as supporting people with HIV and AIDS in the San Francisco community.