i agree it doesn't sound like a succubus....
trust me i am 35 year old, and i am not doing that because i am horny.
they make my body involuntary move, and it feels like velvet when it become full blown i would see pink or pupleish all around the air, and everything become purple. i would feel them being affection rubbing all over me.
when it make me arousal i would feel it come out from the anus then it rub on my buttock then it go to the groin area then my hip would move side way, and my heart would beat too fast, and it was too much for me to handle then i would have to stop them because my body isn't even capable of handling this much intensity.
so if it is an entity then would you know what kind it is, or what it sound like?