Stiles whimpers, both from Derek's toothy retaliation and at the request. He wants to touch Derek everywhere, but he knows that Derek is trying hard to not lose control, and he doesn't want to jeopardize that either, if only because he knows Derek will never forgive himself if he accidentally hurts stiles. He keeps his hands still, resting on Derek's backside, and sucks in a breath.
"Not even a little bit. But. I have an idea," he answers, breathlessly, impressed with his own problem-solving skills when Derek is practically grinding against him. "There may or may not be some...restraints in the emergency werewolf kit," he manages to get out. "Just in case."