She laughs, slightly, at his reply, settling into a steady motion; clearly enjoying it, but still a ways from climax. All of a sudden, he feels Aviendha behind him, one hand stroking his balls, her thumb pressing into his ass, the other between his shoulders, her not-inconsiderable strength holding him down; he might be strong, but she's almost as much, and has the advantage of position. "And says the woman, behind you."