Though the distance made it hard for her to hear what was said, Jessica could make out a few words. At least enough to know that both of them enjoyed what was happening and that mystified her even more. Not the fact that a man and a young girl enjoyed sex but that it was a father and his daughter. That was just wrong but she didn't seem to be forced but rather eager to do it. However the angle she was seeing them from provided her a reasonably good view, albeit a distant one, of their joining. Her breath was coming a little faster and she could feel her body responding to the view and her caressing of her breast. She knew that she shouldn't be watching them but she couldn't seem to resist the temptation. Even as she watched her hand moved down her body, under the edge of her dress and up to her panties, pulling her dress up as she did. She rubbed herself through her panties and could the the dampness in them.