“Oliver,” he said softly, watching at Keith came ever closer, and he reached up to lace a hand in his hair, fingers curled around the back of his skull. “Can we have some fun now~?” He rolled his hips up to meet the grind down, gasping softly and biting his lip again, knowing that his knife was dangerously close to his throat. Of course he liked to use his knives on himself when he was bored, but never before had someone else used them on him. And the thought of that happening during sex was thrilling.