He knew that he would have to bring his father into the act somehow to accomplish the feat. But as weak as his father was psychologically that wouldn't be too much of a problem, he thought. But how?

David was banging his Aunt Emily almost every day now, but she had been a part of the original indiscretion and was easily blackmailed into letting him ball her. In fact, after the initial confrontation, she became a more than willing partner in their adulterous affair. But his mother hadn't been a part of it so there was no way of coercing her with the pictures. His only chance would be to blackmail his father into helping him dupe his mother. The only way he could think of was making his mother think that she was fucking his father while it was actually him who was really laying the meat to her.

He finally came up with a plan. He would make his father get his mother drunk. Then his father would take her to bed and tell her he wanted to fuck with the lights out. After his mother was in bed and the lights were out, his father would tell her he was going to the bathroom and then when he was gone, David would slip in and do his dirty deed. Not quite as ideal or romantic as he wished, but at least he would get to fuck her...

It was Saturday afternoon and his mother had gone to visit Emily. For some mysterious reason, his father had decided against going golfing leaving David and him home alone. Might as well do it and get it over with, David told himself.

Gathering up the same pictures that he had shown Emily, he went down to the rec. room where his father sat watching TV.

"Uh, Dad, you got a few minutes?" he asked, walking over to where his father sat.

"Sure, sport. What's on your mind?" his father unsuspectingly asked.

"Well, I thought you ought to see these," David said reaching out and handing the pictures to his dad.

"What are...What the hell," his father sputtered, staring down at the top picture of him and his sister fucking. "Where? Where in the hell did you get these?"

"I, uh, I took them that Saturday that you said that she dropped some stuff off."

"Fuck! Jeez, why in the hell would you do a thing like that?" his father groaned. "Why?"

"Well, I figured that I might be able to use them to get into Aunt Em's panties, too. Just like you," he grinned maliciously.

"Shit," his father cursed, flipping through the pictures one at a time. "And did you?"

"Yep, and she's one more fine piece of tail, just like you said," David smirked at his father.

"Well, if you got into her panties," his father snorted, his face bright red. "Why are you showing the pictures to me now? You got what you wanted, didn't you?"

"Not quite. I got half of what I wanted," David grinned devilishly.

"What? What do you mean? Half? What else could you want from me?" his father asked helplessly. ......(cont)