Xyveris stepped up closer to her, putting the tip of its demonic cock into her mouth.  Already precum began to seep out, making her mouth tingle with warmth.  "It's so exciting to see you just open and ready!" it laughed.  Hands came up to grip her hair and begin to forcefully fuck her mouth and throat for all it was worth.  At least the precum would make it easier for her to cope with the violation.  Grunting and groaning, her throat so tight around Xyveris' cock it wasn't long before it drove itself as far down her throat as possible, grunting as each shudder of its body sent a long stream of cum right into her gullet.  "Suck it all up human," Xyveris panted.  "Suck long and hard to get as much as you can from it, or you'll get it more frequently."