"You better get the front, Sis," he told her, without explanation. The real reason was that he was getting a hardy erection from touching his red-haired sister's sexy body. It felt inappropriate and he didn't want to dwell on it. Yes, he had thought of his sister many times and wondered about her body, but he didn't think it was right. If he allowed himself to think that way, he was afraid that he would begin to think of her in an unwholesome way. He even feared that he might fall for her in a way that would not be appropriate for siblings.

Dinah lowered her sunglasses, squinting up at...