"No. We have done it once and I don't want to repeat anything unless we can both get off on it."

I was surprised to hear my Dad say, "We could do it on a a smaller scale. We could put weights on clothespins on her nipples till they pull off."

"Yeah that is an idea. Would you do that for me Kathy?"

I thought that wouldn't be too bad. The clothespin couldn't hold much weight and they would be pulled off before they began to ache too badly. I said huskily. "You don't have to ask. I will do anything you want that will excite you."

"Well we will see what you are willing to tolerate for me. Instead of being tied you will just bend over with your hands free to take off the weights whenever you want. To take your mind off of it I will be butt- fucking you since I am horny as hell from watching your Mom."

"Oh God, me too. I will put them on for you."

I let the jaws of the clothespins close on my nipples with as much of the jaws holding them as possible. Dad made a slip-knot around the jaws and then a loop to hold the weights.

I bent over at a ninety degree angle and braced myself by gripping my widespread knees. Bobby watched my nipples stretch as the weights were added till he got a super boner and then went behind me to drive in his tool.

I realized I was in trouble by about the tenth weight. The more weight that was put on the more the slip-knot would tighten the jaws so they could take more weight while pinching me terribly. I just gritted my teeth and held on because I had made up my mind I would take it even if my tits were ripped off. By the time bobby came I was bent over as far as I could and there were about forty weights hanging just inches from the floor and sweet relief. He sank to the floor after his orgasm and saw my tits stretched grotesquely into long cones. I began to cry with relief when he crawled between my legs and cut the line holding the weights with the knife Dad had left on the floor. I was relieved to see my boobies jump back to normal but the slip-knot had jammed on the jaws of the clothes-pins so I was in agony a little longer till they had cut through the knots.

Thankfully they decided we had earned a reward so they just caressed us and kissed us till we felt hungry enough to go out to dinner. They dressed us deceptively demure. We wore opaque dresses with scoop necklines that looked perfectly proper as long as we were standing or walking with short steps. When we sat down at the leather booth by the wall facing the room they had us pull the skirt apart that was simply folded together up to the waist so our bare bottoms would be on the leather. Then we were told to bend forward for condiments or anything when the waiter or any man was close to the table. When we bent forward our breasts were exposed completely. Naturally we got great service. Our waiter evidentally passed the word to the Maitre D and the busboys. There seemed to be someone staring at my nipples and Mom's rings all night. We both enjoyed being on exhibit but looked forward to getting home because Bobby was going to pick up a couple of cam corders to make movies of us dancing and playing with each other. We danced to all kinds of music from slow and sexy to hard rock that had our tits shaking like crazy. As a finale I remembered some sleigh bells we used as christmas decorations. We pinned them to our breasts and pussies with safety pins and did a violent belly dance. There was still some tape left so they checked the decibel meters on our belly dance. I had made the most noise with the bells so I gave Mom a spanking for being lazy. The guys really must have been concentrating hard to get good shots because they didn't get really horny till they showed them on our large screen TV. It was really fun sitting face out on his lap watching myself while being fucked and imagining it was going out on the air to millions of people.

The next morning Bobby got a phone call. He said his sister was home and wanted to meet us. They tied Moms arms behind her back by using nylon line from her left nipple ring around her back to her left wrist and then the right ring to her right wrist which pulled her breasts together to make great cleavage. Since I didn't have nipple rings they tied cord around the base of my breasts till they looked like soft-balls then tied my wrist to the cord. It was very effective. Any movement of our arms hurt our breasts. Then they put raincoats over our shoulder and buttoned the two top buttons so they could play with our pussies on the way over.

His sister, Eileen, Met us at the door. She was wearing a sexy black leather dress made of soft skin which hugged her fantastic body. She had about thirty-six "D" boobs with a tiny waist I later found was only twenty inches. Her round butt was so muscular it didn't even jiggle when she led us over to the bar for drinks. At the bar she asked, "Why are they wearing raincoats? It isn't raining."

"Well Sis. We thought the locals might be upset with this."

At that he took off my coat and Dad removed June's. She was really impressed.

"Bobby! you found more girls like me. The gold rings are pretty. They are bigger than mine. They are really pretty and have lovely bodies. Do they obey orders as well as me?"

"We haven't asked them to do everything you have done. What do you think, Kathy will you do whatever I ask no matter how humiliating or painful it may be?"

"Oh yes Master. You know I will!"

Eileen looked at me doubtfully. "We'll see about that. Maybe we can have a little contest." As she said this she walked around us inspecting our bodies. "You must not do much, Bobby. They only have a few little marks on them. Are you getting soft in your old age?" She giggled at that and Bobby looked angry.

"They are just starting out. You know it took us quite awhile to get to the rough stuff. Besides you only have a few scars yourself. I'll bet you don't even have a welt right now."

"God you are so right! It isn't my fault. I told my present boy friend that I wanted to satisfy a fantasy I had where I was hung from the ceiling and whipped. I even had hooks in the ceiling of my apartment, ropes and a whip. The nerd didn't get my feet off the floor and only hit hard enough to leave faint red marks that were gone in an hour. This was in spite of me begging him to hit harder. He wanted to fuck me after he untied me but I just told him he was a wimp and threw him out. Can you imagine! He didn't even fuck me while I was still tied. I am about to give up. The word is out that I am weird and those pussies are still telling me how sensitive they are and how they admire my intellect."

"Well you are home now and we will make up for that lost time."

"Oh Bobby, Really?" I was afraid you wouldn't be interested in me now that you have your own girl. Especially since she is so beautiful."

I appreciated being called beautiful by someone so gorgeous but I hated the idea of sharing Bobby until I remembered that sharing him with Mom had not caused him to lose any interest in me.

"Why don't you put on something more appropriate Sis. I want to show off your fabulous body."

She just nodded and ran upstairs to her room while we drank our drinks. By now my tits were throbbing really bad from having the circulation cut off so I told Bobby if he would take them off he could whip the circulation back in. He agreed but said he would wait for his sister before he whipped them because she would want to watch. Mom complained that her arms were cramping so he took her loose too. We were sitting on the edge of the couch with our tits up, our tummies tucked in and our legs wide spread just as we were told as we sipped our drinks.

Eileen came down the stairs wearing a raincoat. She stood in front of us with a wide smile on her face. "You haven't seen this Bobby. I had it made special at a metal shop. It was really exciting having him take the measurements. He was willing to be paid by giving me fifty lashes. Unfortunately they were all to my butt and thighs. When I went back to see if he was interested in more I was told he had got in trouble with some girl and had left town. Just my luck! He was the best prospect I have seen for years."