Encyclopedia Britannica
Demon in male form that seeks to have sexual intercourse with sleeping women; the corresponding spirit in female form is called a succubus. In medieval Europe, union with an incubus was supposed by some to result in the birth of witches, demons, and deformed human offspring. The legendary magician Merlin was said to have been fathered by an incubus. Parallels exist in many cultures. The word incubus is derived from the Latin incubus (“nightmare”) and incubare (“to lie upon, weigh upon, brood”). In modern psychological usage, the term has been applied to the type of nightmare that gives one the feeling of a heavy weight or oppression on the chest and stomach.
Wikipedia
In Western medieval legend, an incubus (plural incubi) is a demon in male form supposed to lie upon sleepers, especially women, in order to have sexual intercourse with them. It was believed to do this in order to spawn other incubi. The incubus drains energy from the woman on whom it performs sexual intercourse in order to sustain itself, and some sources indicate that it may be identified by its unnaturally cold p***s. Religious tradition holds that repeated intercourse with such a spirit by either males or females (the female version of the incubus is called a succubus) may result in the deterioration of health, or even death.
![[The Black Stallion]](https://a1cdn.gaiaonline.com/dress-up/avatar/ava/99/e4/2658563151e499.png?t=1679833114_6.00_01 "[The Black Stallion]")
