The devil is a word that came from Zoroastrians after Zarathustra corrupted the word devas into devala and asuras into Ahuras. Zoroastrianism is considered an enemy religion; transforming the formal vedic religion into a psuedo-christianity.
Also, we don't refer to Lord Satan/ Enki as the devil.
That seems disrespectful to him.
Succubusses/Incubusses are just persons with more than average capability of a human. If you ask Lord Satan/ Enki for a lover nicely, he will find you a one that will suit your personality.