Why?

"Why? Because I am an incubus. This is both my instinct and my employ." The figure in front of you speaks. "I show mortals the pleasures of Hell, I aid them in corrupting their heavenly soul, and taking their eternal respite in the freeing fires of Abbadon."

It takes a step towards you, its figure swaying, and something hidden behind the loincloth makes its form more proment for a moment.

"And you, girl, have shown a certain... eligibility."