Kate was glaring at me when I led her out of the wardrobe after Jenny had gone. She looked really sexy in her bonds and with drool running down her chin, the perfect look of a slave to me. Dragging her by the leash, I made her bend over the edge of the bed and kept her that way by attaching the leash to the other side of the bed. She struggled a bit when I pushed her bra up and removed her panties, which I noticed were wet. She groaned in dismay when I pointedly placed the panties on the bed right in front of her face. Without her seeing, I retrieved the items that I had prepared for her from under the bed and removed her gag. "What have you done to my sister, you bastard? You've turned her into…" I let her go on for a few more seconds before raising a leather whip and then brought it heavily down onto her ass. "Ouch!" Kate let out a scream of both pain and surprise. She turned around and looked at me in horror. Without a word I brought the whip down again. "oh, Ouch! Oh! Oh!" Kate cried out and struggled as I kept whipping her. Soon her ass was criss-crossed with red welts. Oh, Oh, please, stop!" she pleaded, "please, oh, oh, I'm sorry, please, stop!" "So have you had enough?" I asked as I stopped whipping her. Sobbing, she nodded. "I can do anything I want to your sister and to you, you get that?" Another nod. "Say it!" "Y-you can do anything you want to me and to m-my sister." "Good. And now I'm going to fuck you in the ass." "Oh, n…" her word trailed off as she saw me raising the whip again. "What, you got a problem with that?" I asked teasingly, touching her ass with the tip of the whip. She stiffened as she felt it. "N…no…" "Good. Then why don't you beg me to do it." She turned around and look at me in disbelief. Tears began running down her cheeks. I could see the fear and humiliation in her eyes. "P-please," she finally said, almost in a whisper. "Please what?" "Fuck my ass." "Again, louder!" "Please fuck me in the ass!" She blurted out, and then lowered her head. I was really turned on by her submission, and my cock was by now rock-hard. I rubbed it against her slit, getting it wet with her juices, and then began pushing into her tight, virgin asshole. "Oh, God!" she gasped as I got the first inch in. Her whole body was really tense as I eased all the way into her. Reaching down under the bed I retrieved a vibrator and switched it on. Hearing the sound, alarmed, she turned around and gasped as she saw it. "That's right, slave, you're going to get both holes filled!" I chuckled as she murmured her protests. Despite her protests, her body betrayed her. Her whole body stiffened as I touched her clit with the tip of the vibrator, and she couldn't suppress her moan when I began to message her clit with it. "Like it, huh? Well here's more!" With these words I shoved the vibrator all the way up her pussy. I held still to let her savor the feeling of my cock throbbing in her ass and a vibrator buried deep into her tight, wet pussy. "Oh, Oh" she moaned. Grabbing her hips, I began pumping. I fucked her roughly, squeezing her breasts real hard and pinching her nipples from time to time, which seemed only to excite her more. She began humping back against my thrust, and moaned louder and louder. Her body was covered with sweat, and when I reached down to feel the vibrator, I found that her juices were dripping down her thighs. "You like this, don't you?" I asked as I began thrusting the vibrator in and out of her. "Y--yes, oh, oh," she moaned, "yes, fuck me, fuck me! Ah! Ah!" Within seconds she was coming violently, with her hips wriggling uncontrollably and her tucking at the leash so hard that I thought she would choke. At this point I couldn't hold back any longer and emptied my balls into her ass. Kate waited submissively as I untied her leash. I then untied her hands and led her to the bathroom. I removed her collar and led her into the shower and told her to clean up. She followed all my instructions, and at my gesture, she knelt down and began soaping my cock. Finally, after we had dried ourselves and got dressed, I let her go. "So I'll see you tomorrow then," I said as I opened the door for her. "Yes," she answered, smiling back to me. I was really thrilled by this newfound obedience on Kate's part, and was already making plans for the next day shortly after she left. I decided to pay a visit to my uncle's office to see if there's anything that I could use. Sarah had already left when I arrived and the office was completely empty. I entered my uncle's office with the key and began check out his drawers, where I found some ropes, a ball gag, a couple of leather cuffs, a blindfold, a vibrator, a cupless leather bra, some more photos and a whip. Just when I was trying to decide which one to take with me, the door opened and Sarah walked in. Needless to say, we were both surprised to see each other. "Oh, hi, Jim," finally, Sarah managed to say. "Hi, Sarah." "I didn't know you're here-" she stopped when she saw what I had in my hands. We remained like this in silence, and I wasn't quite sure what to do. "So you know," finally, she said, lowering her eyes. "Yes," I said, staring at her large breasts and long legs. Sarah looked up and caught my stare. "Is that what you want?" She asked. God, I thought, looks like my cock's having a busy day. I nodded, and without a word she began undressing. God she's pretty, I thought as I looked at her. Large breasts, not so slim as Kate was, but still in good shape. When she was completely naked, she just stood there and waited for me. "Lie down on the desk," I said. She complied without a word. I walked over to her and grabbed one of her wrist. Her breath quickened as I took the ropes and started tying it. I raised her arm above her head and tied the rope to a leg of the desk. When I walked over to the other side of the desk, Sarah auto-matically raised the other arm. And when I finished tying the other wrist to the desk, she immediately spread her legs so that I could tie her ankles too. "My uncle has really made you…obedient hasn't he?" I couldn't hide my curiosity anymore and asked. "At first h-he made me do it, but then I got into it myself." Sarah was a bit embarrassed when she told me about their relation as I continued to tied her up. I then took the vibrator and switched it on. I put my hand between Sarah's legs and felt her pussy, which was already dripping wet. She moaned as I shoved the vibrator up her pussy. Then I had an idea. I blindfolded her and then told her to wait. "Wh-what are you going to do?" She asked. "You're not in a position to ask," I said and gagged her with the ball gag. I left the room and closed the door behind me. Using the phone in the main office, I called Sarah's home. Jenny answered the phone. Just as I hoped Kate and Jenny were both there. I told them to come here immediately. "What are we going to do?" Jenny asked. "You'll find out, and get there quick." They arrived shortly with Kate looking suspiciously at me. "Take off your clothes," I said. "Wh-" Kate began to protest but I stopped her. "Do it now or I'll get the whip!" I said, and she immediately started unbuttoning her shirt. Soon the two sisters were standing in front of me completely naked. Kate blushed as she saw Jenny staring at the whip marks on her butt. "Are you going to hurt us, Jim?" Jenny asked. "Not if you do what I say, otherwise your ass is going to look like Kate's." I said, which caused Kate to groan in dismay. "We'll do what you say, please don't hit us," Jenny pleaded. "Oh, poor Katie, it must have hurt." She said as she touched Kate's ass gently, causing her to jump uncomfortably. "That's right, Jenny," I said. "I want you to touch Kate and make her come. That's right, touch her there." "No!" Kate protested, "You can't make us do that!" "I can and I will. If you don't let Jenny do that, you'll both get a whipping!" "Oh, Katie, it's okay," Jenny cooed, "it's okay…" with that she kissed Kate on the lips gently. Her one hand reached up and rubbed Kate's breasts, while the other began gently rubbing Kate's slit. While her hands were working, she kissed Kate again and their kissed became more and more passionate. Kate wrapped her arms around Jenny and began messaging her body. Jenny pushed Kate gently so that her hips were resting on a desk. She spread Kate's legs and pressed her body against Kate's, and began grinding her hips, rubbing her pussy against Kate's. Soon their breath turned to gasps and Kate's began moaning and wrapped her legs around Jenny. At this point I stopped them. "Oh, oh," both Kate and Jenny moaned in despair. "Now come here, and don't make a sound. If any of you say a word without my permission, both will get whipped. Is that clear?" Still trying to catch their breath, they nodded. I then let them in my uncle's office. They both gasped in surprise as they saw Sarah. Kate almost cried out, but she covered her mouth with her hand quickly. Sarah was moaning under her gag, and her body was trembling with excitement. I led Jenny to between her legs and pressed her head down to her mum's pussy. She looked at me with pleading eyes but I just gave her a stern look and pulled out the vibrator in Sarah's snatch, causing a muffled cry from her. I forced Jenny's head down until her lips touched her mum's pussy, and held it there until she began licking with her eyes closed. Next I turned to Kate. She had been watching what I did in some kind of shock and didn't resist when I grabbed her arm and led her to the desk. She started shaking her head in silence when she saw what I was up to. I reached out and pinched Sarah left nipple hard, drawing a cry from her, and Kate grabbed my arm when I reached out again. Slowly, she climbed on the desk and straddled Sarah's face. Then I untied Sarah's gag. "Wh-" "Shut up and start licking! There's another slut here who wants you to lick her pussy!" I said, emphasizing my command with a squeeze on her breasts. She began licking and soon Kate began squirming with excitement. Soon all three of them were moaning, Jenny was fingering herself while licking her mum, Kate grabbed Sarah's head and rubbed her pussy against her face. I took off my jeans and climb on the desk. Kate cried out as I entered her warm, wet pussy from behind. Grabbing her breasts from behind, I began pumping her in a frenzy. Sarah for her part was alternatively licking Kate or my balls. Then I reached down and removed Sarah's blindfold. "Oh, God, oh, Sarah!" She cried out as she saw her daughter. "Oh, mum, oh, oh," Kate moaned in answer. "Yeah, that's your daughter alright," I gasped, "and there's Jenny licking your pussy!" "Oh, God, oh, oh!" I couldn't tell whether Sarah was moaning out of pleasure or dismay, but soon she began licking Kate's pussy again. "Oh, mum, I'm coming, I'm coming! Ah! Ah!" Kate cried out, and from the way her body was squirming I guessed Sarah was coming too, and I myself was pretty close. After Kate came, I pulled out and sprayed my come all over Sarah's face. Kate collapsed on top of her mum, hugging her tightly. At this moment Jenny also came, and then she collapsed of the floor, exhausted. Feeling exhausted myself, I climbed off the desk and sat down on a chair. Slowly Jenny got up and got on top of the desk, joining Kate and her mum. Together she and Kate licked the come of Sarah's face lovingly, kissing each other from time to time. Then they asked me if they could untie Sarah. I thought this should be enough for a day and nodded, and they untied Sarah and helped her get up. They smiled at each other and Sarah kissed them both. Then they stood together in front of me, with Sarah wrapping her arms around her daughters. "Please, may we go home now?" Sarah asked submissively. "You can come with us if you like, I'll make you a nice dinner." I couldn't believe it! The following days I was in heaven. I had the total submission of three attractive women who would do anything I say and satisfy any fantasy of mine. It was like I had my harem. I would meet up with Kate and Jenny after school and go home with them and Sarah would be waiting. Needless to say, I didn't study at all. Well, this dream was to end soon, when uncle Alan came back. I came out of school one day and found his chauffeur waiting for me instead of Kate and Jenny. He told me that uncle Alan had already taken them home, and my heart sank like a stone. I went home and found Sarah waiting there. She was kneeling on the floor, naked. Her arms were tied behind her back, and there were also ropes around her breasts. "What happened? Where's Kate and Jenny?" I asked. "Y…your uncle took them…" she said weakly, "they're upstairs… H-he found out." "What?" I was shocked. Thinking that my uncle has taken my two personal slave, I was over taken with jealousy. I noticed that there's a whip on the floor, picked it up and began whipping Sarah angrily. "You told him, didn't you!" I scolded, "you let him take them away from me!" "Oh, oh, I'm sorry, I'm sorry, but I had to, oh, oh," Sarah pleaded as she winced with pain. Soon her back and her arms were covered with red welts. I dropped the whip onto the floor and ran upstairs. Uncle Alan was waiting. "Hey, Jim," he said, "well done," without answering him I ran through the door behind him into his bedroom. Kate was lying spread-eagled on the bed with her wrists and ankles tied to the head board and the legs of the bed. Jenny was lying on top of her with her hands tied behind her back. They were joined together by a double-head dildo. "Oh, Jim," Jenny whined when she saw me. I turned around to face my uncle and tried to hit him. "You took them away! You took them away! They're mine! They're mine!" I said angrily. "Calm down, Jim, clam down," said uncle Alan, "you did fine, much better then I expected, and I'm really proud of you. No I'm not going to take them away from you but you've got to share, just like I let you have Sarah. You still have a lot to learn." So I don't have my own private harem all to myself anymore. Shortly afterwards, Sarah and the girls moved in to live with us. In a way, I now have a whole family, though not exactly what you'd call a "normal" one. I have competed with uncle Alan like a father figure over Sarah and the girls, and now they're mine as much as they're his. Not every boy has his sexual awakening or a resolution to his Oedipus complex like that, I guess. Anyway, Sarah's birthday is coming soon. I'm going to suggest to uncle Alan that we give her a pair of gold nipple rings. They'll look good on her.