Her ass was very sore, and I realized that she was not going to be able to sit through her classes if I kept it that way, so I whipped her thighs inst...ad. She cried, but did not lose her grip as she had on Saturday. I congratulated her, and laid out a schedule for getting her through her courses. Except for classes, meals, exercise, and "quizzes", she was to spend essentially all her time studying to pass her finals.I got to work on her papers. My biggest problem was not to write too well; I. Her wetness dripped over the tip of his cock. He toyed with the idea of teasing her there, of making her beg for him, but he knew he couldn’t hold out anymore than she could at this point. It was a simple matter of pushing into her warm, wet entrance all the way to the hilt, pulling moans from them both.Her cunt spasmed and tensed around his invading member, squeezing even more precum from him. She let out another panting scream as he pounded his hips against hers, keeping a tight hold of her. I knew it was going to cause a problem and we hadn't even begun.I guess I ought to admit before we go any further that I've lusted after this woman for several years now. That was the other reason I didn't really want to do that - your own niece, even if it's only by marriage, is a little too close to one's own doorstep for fooling around. I felt a little like the object of that limerick - you know 'she knew what they meant, but still went' or some such line.I sighed inwardly and muttered grace. Her long legs were perfectly formed, with just enough curves to suggest woman without being plump. Her mound was closely trimmed, with only a thin strip of blonde hair curling over the hidden lips of her pussy and clit. She turned, peering at her backside in the mirror. Her butt- now it was just cute. She had a nicely curved ass. It was far from being big. Indeed, it was perfectly proportioned. Many a man had drooled- literally- at the sight of her firm ass. The tub finally full, she stopped.