He'd smile, "Well, you have been very good and followed your directions but before I do so I want one more thing."
He'd shift slightly, moving back between her legs, he'd lean down and kiss her with a slow and passionate kiss, that was dripping with lust. He would make sure she was familiar with his taste as he would slide his tongue into her mouth intertwining it with hers.
While this was going on he'd create three more of his metallic rings, one for each ankle of hers on one that would appear on her waist like a large belt almost, each one pinning her more completely to bed and preventing her from moving except for some slight squirming.
He'd break the kiss, moving his lips to one of her ears, while also running a hand to her naval, taking her piercing between to of his fingers. "For starters, this isn't your house." He'd pull on the piercing lightly.
"Frankly I don't really care that you stole from some couple, where I come from stealing is almost more common than breathing." He'd slightly twist the piercing to see if she gave a different reaction.
"But I do care that you lied to me, and used me. And I. Can. Not. Stand. That." He'd pull the piercing lightly with each pause, but he made sure not to let her slip a word in, other than her possible moans from being toyed with like she was.
"So I've been contemplating a good revenge in the back of my mind while we played on the bed of this lovely couple." He'd idly fiddle with the piercing, softly twirling fingers around her actual naval. "But I've decided, I won't do anything to you, well other than fuck you savagely, because I'm a genuinely nice person. But you owe me and I fully intend to take that debt from you, because I've done some bad things myself."
He'd pull back from her ear, and give her a smile while looking straight into her eyes. The smile would be something the devil wore himself when collecting souls, and the malice and deviance in his eyes would be able to drop a regular human, and he knew fully well that if this look would kill, it'd seduce you into doing it yourself. It was a touch of a darkness deep inside him, a malicious part of him he never wanted out, but he'd use it if needed.
He'd believe his point had come across, he'd press the head of his member to her opening, dispelling all of the bindings on her so she could act freely. Whether she'd run away or be violent or if her temptation was too much she'd get right down to the fun stuff. Whatever it be, Malvoes was alright with it.