She knew the game he was playing and wanted to play with him just as much. Which was why she tried not to make any noises or move into his touch. She did adjust her position so that he had more room, but only the sudden huskiness her voice had taken betrayed her arousal. Well, that and her breathy tone.
"It leaves quite a lot open for you." She turned her head to kiss his neck gently, nibbling just slightly. "I trust you." That wasn't false.