"Yukio," Rin's whining voice comes from the bed across the room. "Turn out the light and go to bed already!"
Yukio casts a look at the disheveled lump of bed sheets with a tail sticking out of it. He sighs and looks back to his reading material. "Just a few more minutes, brother, I'm almost done."
Rin groans, but quits his complaining.
Yukio's eyes fall back to where he was reading before getting interrupted.
Succubi are a type of female demon whose purpose is to lure men into sexual intercourse. They possess highly attractive bodies and are able to manipulate the weak minded. These creatures are the supposed children of the demon queen Lilith and her various human and demon lovers, that including Adam (see: Legend of Adam and Lilith). They have the ability to suck out men's souls through intercourse and, like their male counterpart the Incubus, can create half-demon offspring.
Succubi are extremely hard to get rid of once they have a part in your soul. Fatal verses for these creatures are primarily found in Mathew and Corinthians.
Yukio shook his head before closing the heavy book. He rubbed his eyes and turned off the lamp beside his bed, noting that despite his complaining Rin had already fallen asleep with the light on.
He let out a tense sigh before pulling the blankets up around his form. He was being ridiculous, there was no way you could be a succubus. He's getting way too paranoid.