Janet being in the house had caught John completely off guard. He was trying to get his sister to play with his stiff dick and hadn’t actually taken his sister’s discussion about Janet seriously. It was just vaguely interesting to him to find out that Janet watched her brother jacking off. He was only interested in that story because he figured that Karen was using Janet’s brother as an example to try to get him to do the same thing in front of her. He’d enjoy demonstrating that for Karen if that’s what she wanted to see. But if Janet really did want to see if she could jack a guy off and make him squirt, then hell yeah, he’d volunteer for that! And if his sister really did want to watch Janet jacking him off, that makes it even better. She felt the shape of his dick, from the head of his dick all the way down to his balls. She squeezed his dick, she stroked his shaft, and she tickled the head of his dick with her fingernails. Her hands felt fantastic. Her fondling was making his knees weak.