The girl slapped her with the flat of her hand, striking one cheek, then the other. Toni bit her lip to prevent herself crying out. Each slap stung dreadfully, and she knew her bottom would be glowing red under the onslaught.
But there was another sensation as well as the pain. A return of the warmth she had felt earlier. This time, though, it was the pain that was causing it. Somehow the effect of being tied and punished was acting as a stimulant, and once again she became aware that her body was responding in a manner that was totally at odds with her mind.