"Maybe," Derek mused. He could tell that Stiles was curious--even eager, which just made the wolf more determined to go slow, to prevent his natural inclination from being exploited, like Isaac's had.
He set the cloth aside, using his hands to sluice water over the lathered skin, fingers teasing his nipples, circling, and pinching, as he spoke, voice soft and low. "I'd planned on exploring your limits...try out different things. See how sensitive you are...what you can handle. What makes you hard, makes you beg."