She held her position and when I tried to move just a little bit to break the contact she moved just enough to keep her foot against my dick. I toughe...d it out for another couple of minutes and then I mumbled that I had homework to do and I got up and went to my room.I was having trouble falling asleep that night so I was still awake when mom came into my room. I heard the bathrobe hit the floor and I knew that she was naked when she climbed into bed with me. I layed still and tried to pretend. I found an article on The Atlantic.com last night that's related to what we were just talking about. And it has some historical and cultural significance as well. Especially for geeks like me.”Curiosity brightened her lovely face. “There's an article on The Atlantic.com about my naturally curly hair?”A hearty guffaw leapt out of my lips before I could stop it. “No, about kink.” “Oh. As in...kinky hair, or kinky feminists?”“The latter. The article was about the man who created Wonder Woman. He. Even the feel of her hand rubbing her bottom was sensuous and erotic. The spanks may have hurt and the cane even more, but when in bed with her vibrator that pain was usually forgotten or ignored and only the wonders of the stinging pain and the flutters bouncing around her pussy were remembered. Of course she had experience of making out and so she added that to her fantasy which became the desire to be spanked by a girl her own age and then make out. It was a crazy turn on what had happened. She gasped as he repeated the action, alternating between buttocks, each time the sting of pain intensifying the excitement building inside her. When he stopped, pulled her legs apart and entered her, she had her first orgasm.He continued moving inside her, pushing harder and harder. Each time he pushed into her, he pressed on her tender buttocks and she gasped. By now he was holding her breasts, pulling her body to him so he could push harder into her. They moved faster and faster together.