"Aa-ah," Kabuto purred, thrusting his fingers into the blond's body. "On my own time, Naruto." It was the same game he played with Sasuke; teasing him but not hesitating too long, keeping things moving.
Indeed, a minute later, he slid a third finger in, watching the blond's reaction avidly. While he was careful not to hurt any of his partners if he could help it, sometimes they enjoyed a little pain. It was a matter of seeing if they did or not.