The next day, he told me to buy a spy cam and record them while they were bathing. I now knew that he was going to blackmail the four women. I planted...the spy cam and it worked exactly the way it should.I showed him the recordings and asked him if he’s ready to fuck his own daughters. In response, he started jerking off to those recordings.The next day, when the four of them came to change his clothes, he presented the recording to them. Everyone was shocked and angry. My grandfather told. It was 6:15. 'Doesn't your office close at six?' 'I'm just catching up on some paperwork so I'll be here for a while yet.''Twenty minutes?' 'Perfect. I'll see that the front door is unlocked.' Thirty minutes later I was there and found her waiting for me at the reception desk working at the PC. 'There you are! Let's go to my office.' She led the way and I couldn't help admiring her butt. Where there'd been a floppy lab coat here was now a nice tight skirt. Once again she locked the door behind. When I got there I found that Chrissy was already there. I guess this should not have surprised me as she and Suzie were friends. The party was fun and I had had a couple of beers (the drinking age was 18 at the time so I was not even i*****l). I had to pee so I went to the bathroom but found it was locked. I went up stairs to find another bathroom. When I finished peeing, I zipped up and turned around to see Suzie standing in the bathroom behind me. “Um, hello.” I said. Suzie took me by the. Soon it slapped hard onto the back of my right thigh, and then the left. Slowly she swatted again and again, carefully moving from the back to the inner parts of my legs, and occasionally my back and the sides of by torso. Then finally, and without warning, it slapped hard against the bottom side of my exposed balls, sending me once again into screaming pain. Then before I could begin to recover, another slap, and then another. I couldnt believe the pain she had inflicted, and she was laughing.