The demons tongue did the opposite, entering Ruka's vagina, and basking in it's warmness. It slithered it's way down into the depths of the mortal as the demon itself used it's experienced neck muscles to pull down more of Ruka's savory body into his own. Her feet popped into the things stomach as her thighs entered the demons maw, unperturbed by Ruka's struggles, the demon groaned with satisfaction.