A Girl's Guide to 21st Century Sex is a documentary TV series about sex, presented by Dr. Catherine Hood. Each episode explained a sex position and covered a sexually transmitted disease. Additionally the following topics were discussed: sex among handicapped and overweight people, penis enlargement devices, penis enlargement surgery, sexual violence against men and penis removal, tantric sex, the g-spot, erectile dysfunction, sex reassignment surgery, cosmetic surgery of the vagina (labiaplasty), swinging, lichen sclerosus, the use of recreational drugs during sex, male homosexual sex in public toilets, full body plastic wrap bondage, and sex dolls.