Autocunnilingus refers to the act of a woman performing oral sex on oneself. It is classified as a form of masturbation, and an act not everyone can perform.
Autocunnilingus
More About Autocunnilingus
Autocunnilingus requires a high degree of flexibility to be completed. The act requires more flexibility than the male equivalent of autofellatio. There is little evidence to support the idea that any women can physically perform this act. There has yet to be a documented case of a women able to perform autocunnilingus.
