Motivation of a succubus

I read multiple topics about succubi and i know that each one is different. Someone told me that there are some that i should avoid. Do they come to you naturally or you have to called them to come to you? What is their motivation to make with a human. How do i start communicating with one. What does it feel like to have sex with one. I know that they can be emotional. Can they be attached to an object or does it have to be a living being. Do each one have different motivation than the other succubi if so then why they hurt other humans?