Unholy Embrace a vampire novel

An excerpt from Unholy Embrace - encounter with a succubus.

As I glanced at the people, I spied a blonde haired, woman wearing a low-cut, strapless, violet gown, staring at Nessa. Her pale face looked as if sunlight had never touched it. I wondered what was going on.

“Why is that woman looking at you so intently?”

“Because I am a threat to her,” she said, returning the woman's gaze.

“How so?” What's going on, I wondered.

“She's a succubus who has subjugated the man with her. She’s afraid I might expose her.”

“I thought succubi and incubi were creatures of myth.” I gulped. “Besides, aren’t they supposed to be incorporeal beings that come to their victims in the night?” One moment we enjoyed our intimacy, the next we discussed demonology about a woman not twenty feet away.

“They can only manifest themselves if they ingest enough energy. Even then, they usually maintain a solid state for short periods of time. Look at the man she’s with. See how white he is. His pallor is not from lack of sunlight. She’s drained a substantial portion of his life energy.”