A Vaguely Female form...

The shape that appeared had the same outline as the female body, the naked female body. As it continued forward the outline of a pair of large leathery wings spread behind it.

Finally, stepping into the light was the full form of a succubus. She was about medium height for a female human, with a slim waist, wide hips and a pair of impressively long legs. Her slim face was framed with long red hair, reaching down to her large firm breasts. Even without prior knowledge most people would have guessed there was something supernatural to her. This fact, however, did not prevent her from being hot as hell.

She let her tongue slide slowly across her upper lip as she continued her graceful stride forward. He paused, trying to decide on a course of action as his nether regions were steadily hardening at the sight.