"Good boy," Derek murmured, approvingly, as Stiles used his tongue on the toy. He rested his hand on top of the boy's head, as he would when he eventually used the boy's mouth.
"Get it nice and wet," he commanded. "The wetter the better."
He'd never done this before...lessons on how to do something like giving head. Even when he and Paige had been learning together, they'd been learning together, from the same instruction. He'd been learning what he'd liked, more than how to teach. Older now, he knew exactly what he liked, and though he gave direction to the slaves he'd taken to his bed, it was never quite like this.