He was pleased to find one so eager as Teri was. Perhaps he would take her under his wing as his succubus and apprentice, though she would never attain the level of power he possesed. Such a level of power in a human would destroy one. Sarah, the older of the two, seemed less then eager. "You - come over here and suck my balls!" He said, using the human terms for such things. Teri would find that the more she sucked and tugged on his male-flesh, the larger and harder it would grow.