The Bartholin’s glands are a set of glands at the mouth of the vagina that release fluid during arousal; this fluid helps to lubricate the vaginal canal during penetration. Women may experience various levels of fluid, and the amount of fluid is not necessarily an indication of arousal or desire.

The clitoris is a genital organ with a singular purpose: sensation. The clitoris has two parts. The first part is the glans clitoris, which is external and located toward the top of the genitals. The other part of the clitoris is its shaft, which extends internally.

The dual control model refers to a system for sexual response that was first discovered in the 1990s by researchers Erick Janssen and John Bancroft. A series of brakes and accelerators impact the central nervous system and, with it, sexual desire and arousal.