The concept of succubi and incubi can be traced back to ancient myths and legends. These entities are usually described as beings that visit people in their sleep to engage in sexual activities, sometimes with negative consequences for the person being visited.
If you're looking for information on succubi or demons in mythology, I can certainly provide that. In folklore and mythology, succubi are female demons or supernatural entities that are typically depicted as seductive and predatory. They are often associated with incubi, which are male versions of the same mythological creatures.