Joann wondered how long he had been looking at Judy this way with her not realizing it. Dave didn't seem to care that she was watching him, didn't care that she knew he was showing an open interest in his sisters creamy, tight ass. What Joann didn't know was he had seen his mother peeking at them through the window of the truck.

Since his mother had not said anything then, and had kept quiet when he and Judy had come into the house, Dave felt he could stare at his sister's half-exposed ass all he wanted, openly.

He had seen the expression in his mother's eyes, realized her fascinated excitement as she had watched Judy jack him off. Dave was young, but he was very perceptive. He had seen in his mother's face, in her expression, in her green eyes, what Joann had kept hidden all these years.

He was not a bashful boy. Hot fuck juices had been running wild in his balls for a couple of years, and, unlike his mother, he enjoyed the feelings. He wasn't ashamed of them, and when he had one day accidentally come upon his sister running her hand between her thighs, they had come to an agreement. He found that his sister had a hot, strong hunger to see and play with a cock, and he had offered her his. Judy, with the same lack of shame, had readily agreed. Today had been the fifth time she had jacked him off, but Dave as yet had not touched his sister's cunt except through her shorts and panties. He had not even seen her pussy.

He had hesitated about going any further with his sister because, she was so young. Besides, Judy seemed content to jack him off and let him feel her cunt through her shorts. But, really, Judy wasn't content; she wanted more than to just jack her brother off. She wanted him to fuck her, but like him, she was still cautious about approaching that.

Joann watched her son stare openly at his sister's ass. She felt she should say something, but didn't know what to say. Her eyes glanced at the front of his pants, despite her efforts to keep them averted. She could see the way his jeans cupped his cock and balls, but there was no outline.