:The Succubus Fantasies:

You left her skirt and pull her pants and reach down to guide your cock inside her, but you feel a burning pain in your groin. You cry out, let go of the girl and double over in pain. You look round desperately and there in the corner of the room is a witch looking at you with an amused expression on her face.
"What's going on?" you cry.

"Ah. there are a few things you're not allowed to do, whether this is fantasy or not. And that my imptuous little turd, is one of them. Bye bye!" She waves at you. The room dissolves and you realise you have indeed made a very poor choice.

Swirling into view returns the lair of the succubus.