The ride to their house caused never-ending pain since with our elbows bound behind us we had to lean forward with the chains jerking at each bump in the road.

By the time we had reached the house Mom and I were begging them to fuck us. I thought they might take the chains off our pussies but they just took off our cuffs and shackles so we could get on our hands and knees so they could fuck us dog-fashion. We knew we could stop the pain to our nipples a lot just by letting our breasts down to the floor. Neither of us did anything to lessen the pain. If anything we exaggerated the movement of our breasts as their loins beat against our butts. We both had great orgasms and the guys must have been pleased because they took off the chains as a reward. We both had a few drops of blood on our nipples and pussy from the clamps but the pain went away as soon as they were removed.

It was wonderful to wake up with Tim's arm around me I really resented having to get up to go to school. Thank God it was our last day before summer vacation.

When we got home Tim suggested we have a swim while Mom made dinner and we waited for Bob to get home from work. The water felt very sensuous against my nude body and I tried to get Tim to make love to me but he just gave me a little kiss and pushed me away as he told me he could only cum so many times and wanted to save himself for later when his dad came home. I felt frustrated and began to play with my clit but he stopped me telling me he wanted me to wait.

Naturally I was elated when we heard his car and Mom and I ran to meet him at the front door. Mom was only wearing a small frilly apron but this was too much for Bob. "Take off that apron! If I want your body hidden I will put clothes on you. When I left you were naked and I expected you to stay that way."

Mom said she was sorry and that she wouldn't put anything on again unless she asked him if it was all right. She offered herself for punishment but he told her that he was not sure he had given her that rule. To make sure rules would not be broken in the future he had typed a list which he would go over at dinner.

Mom had gone all out for dinner. She made a Prime rib roast, salad and vegetables. It tasted wonderful and Bob said the first rule was that you would share the work around the house equally, however, Kathy is an excellent cook so Kay will help with the preparation and do the clean-up after. I expect Kathy to teach Kay to cook as well as she does in the event Kathy and I leave for a few days so Tim will have a cook. Mom had always done all the cooking I couldn't even fry an egg but I was anxious to learn so I could be complimented for the effort like Mom.

The rules were fairly simple. We were only allowed to wear costumes they picked out. If there were no directions we would be naked. We were expected to keep the house spotless and would be punished if it wasn't. Then he had more news.

"Now that you are here I decided that I want to be with you as much as possible so I appointed Tom Derek to be general manager of our businesses. He will only call me if there is a problem he does not know how to solve. I will just go in once a week to check the books to make sure our profit remains the same or increases. He has two incentives to make a profit. He will get a share of the profit and if there is a loss he may lose his job.

To increase our privacy there is a man installing a remote control gate at our driveway. Since the whole place is surrounded by electric fence to keep the horses in we should not have any intruders. Neither of you is to let anyone in unless Tim or I are here. I have also cancelled my gardening and pool cleaning services. Tim and I will monitor the pool since you have no expertise in that field and you will take care of the gardening. Since most of the land is in pasture and shade trees you will just have to care for the lawn, shrubs and flowers round the house."

Mom said, "Have you picked out clothes to wear for the outside work?"

"All you will need is gloves and shoes. The only people who can see you will have to be in an airplane. If you see one you can get under a tree."

"Yes but it is awfully hot in the summer and cold in the winter."

Bob shrugged saying, "In the summer you can wear sun block lotion. I like to see you sweat. In the winter you will only be out in the cold for short periods."

I shivered at the thought of shovelling snow at twenty degrees stark naked. I knew I would do it though since it would be a good test of my obedience and told him so.

"Yes speaking of obedience. Tim and I have decided to test your obedience. You may refuse any of our demands but if you do you will be punished. We are going to experiment with punishments. Since both of you are excited by everything we have done so far we will try other things to find something that will cause pain without excitement but will not scar you. Now get Tim and I a beer. We will be waiting for you in the living room."

We hurried out to them with their beers and they gave us fingernail clippers.

"Cut your fingernails close and keep them that way. When we go out you may wear false nails. I didn't know why he wanted us to do this but decided it was a very simple test. When we were done Tim said, "We decided we wanted to see more of you. Spread your legs and open your pussies with your fingers. We want to see as far into you as possible."

This was the ultimate limit of nakedness. I put two fingers of each hand deep in my pussy and spread it till I was afraid the skin would tear from the stretching. They kept saying Mom's was wider open or mine was until we just couldn't open it anymore in a standing position.

Bob said, "I think Kathy did the best. Kathy keep it open like that. Kay, kneel and stick your tongue into her pussy as deep as you can and move it around. We will judge your success by the actions of your mother."

This was no test for me either since Mom always kept her pussy clean and I enjoyed turning her on. I worked till my tongue was tired and Mom was beginning to tremble as she soaked my face with juice. Just before she came Bob told me to sit back and push two fingers in her pussy and work them around, Then three fingers, then four and finally they said to put my thumb in my palm and push my whole hand in. I looked at Mom's face and she said gasping, "Go ahead Honey, I can take it. The doctor does it with bigger fingers than you."

I watched in amazement as my hand slowly worked into her pussy. Finally the ends of my fingers were pushing against her cervix so I closed my hand to take the pressure off it. By the time my hand was inside her up to my watch she was gasping and pulsating. When Tim told me to pump my fist in and out she grabbed my wrist and pushed it deeper and up against her clit than I would have ever done on my own, When she reached orgasm my wrist watch was beating against her clit."

Bob had her sit on the couch to recuperate and sent me for more beer while they hugged and kissed her.

When I returned Mom had recovered and was smiling.Tim said,

"I guess it is time to get your reactions to fist fucking."

"Oh No Please! My pussy is too small it will kill me!" as an after thought I added in argument, "I want it to be tight so you will enjoy fucking me."

"That is your option. We will punish you instead."

I was relieved because I had always managed to turn their pain into excitement. They tied my ankles together and lifted me up in the air by them. Again I was relieved because My legs were tight together to protect my pussy. My relief left me when Tim produced a thin cane and began beating the soles of my feet. I had no idea my feet were so sensitive The pain was fierce and got worse with each blow, by about the tenth I was screaming,

"No! God No more. You can fist-fuck me! All of you can! Just please stop."