When Steve first suggested that I be his sex slave, I thought that it would be a fun diversion, but I didn't know how serious he was about it. We had been dating about six months, and his suggestion came up pretty casually. We were eating dinner in a restaurant, and he asked how I felt about giving myself to a man to be used only for his sexual pleasure. Steve is a very exciting and interesting guy, and it seemed like it might be fun to completely submit to his every desire. I thought about our nights in bed, feeling his truly enormous cock stretching my pussy to the limit as he pumped rapidly. "Sure, sounds like fun," I responded. "I don't think you understand," he told me. "I mean, completely give in to everything he wants. Basically, to be his slave." This caught me a little off guard. This is not what a woman of the nineties is supposed to do. We are supposed to be assertive and stick up for our rights, not to be a man's slave. I had thought that he meant a little casual play for a night; I was apparently mistaken in this belief. I paused while thinking about all this. Looking into his eyes, I saw that he was extremely serious about this. He stared intensely at me, sensing my indecision. Steve is the most wonderful man I know, but my pride prevented me from allowing this. I averted my eyes, looking for the waiter to give me some more water. The subject was dropped for the evening, but I could tell that he would bring it up again sometime. When we made love that night, he seemed to have a fire in his eyes, and I felt an overwhelming desire to be taken hard. I think he sensed this, and it was with reckless abandon that he took me. He had planted a seed that night, one which was to grow in the coming days. I struggled with the dilemma of it, unable to reconcile my base, physical urges with what I thought was "right." He was busy at work those days, and my only contact with him was a couple of brief phone calls. Finally, I could stand it no more. I called him that night and asked him to come over. "Why?" he asked. I wasn't sure if I should tell him about my decision or not. I decided to give him a hint to excite him as much as I was already. "Because, master, I need you." He hung up immediately, leaving me wondering what he thought. Fifteen minutes later my doorbell rang. I opened the door, and Steve asked what had taken me so long. I apologized, but he just walked by me. "Karen, do you know what this involves? You must give in to anything I wish. You must never disobey me. Your body will be mine, and I will use it as I see fit. Do you understand this?" Looking down, with my hands behind my back, I responded meekly in the affirmative. "I don't know if I believe you," he said. "Go upstairs and take off your clothes. I will be up in a little while." This was a new Steve. Normally he was kind and gentle. He never forced himself on me, though I could tell that he sometimes wanted to. He seemed to love foreplay even more than I, and here he was gruffly telling me to strip and wait for him. I went upstairs, undressed, and sat down on my bed to wait for him. Twenty minutes later he came up, carrying some rope. He took off his clothes and sat down on a chair. "Well, what are you waiting for? Get over here and suck my cock!" I walked over to him and knelt down in front of him. He was already harder than I had ever seen him. I took his penis in my hand, not even able to touch my thumb and forefinger as I wrapped them around the huge thing. I put my mouth around him, prepared to give him a blowjob as I had done many times before. After only a minute or so, I felt his hands on the back of my head, forcing my mouth down on him. When his cock hit the back of my throat, I gagged, but this did not deter him. Tears formed in my eyes as my throat was stretched. I tried to pretend that I was swallowing a large piece of food, and this seemed to help. He started forcing my head up and down on his dick, in and out of my throat. I gagged several times, and tears were now running down my cheeks, but he did not care. Well, I thought, this is what I asked for. All of a sudden he stopped and told me to go over to the bed and get on my knees. He then told me to bend as far down as I could. He pushed me even further so that my breasts were mashed against my lower thighs. I then felt him tie a rope behind my legs and over my back, in essence hog-tying me. The coarse rope bit into my skin, and I started to worry if I had gotten in over my head. He then demanded that I put my hands behind my head. He tied them securely in place, leaving me immobile with only two strands of rope. I heard him go to my bathroom, then return. I heard the cap of something being taken off, then a delay, then something was thrown to the floor. I waited there, tied, on the side of the bed, wondering what he was going to do and nearly shaking from fear and arousal. "Well, Karen, this should tell us how serious you are about this," he said. I didn't know what he meant until I felt his horsecock between the cheeks of my ass. I had never taken a cock there, and he knew it. He had asked many times, but I had always rebuffed him, fearful of the pain. I silently awaited what I knew I could not stop. The discrepancy in sizes made it difficult for him. He grabbed my hips and pulled me to him, but I was too tight. He slapped my ass a few times, telling me to relax. I did my best, and with a sudden lunge he forced about an inch into my anus. I cried out in the most severe pain of my life and was rewarded with another lunge of his cock. I begged him to stop, knowing that he wouldn't, and also knowing that I didn't really want him to stop. He forced more and more into me until finally he was as far in as he could get. I felt unbelievably full, and the stinging pain was making me see stars. He began thrusting right away, but my tightness prevented him from moving too quickly. Slowly the pain receded, leaving a dull throbbing discomfort. He used his hands to force my hips back and forth on his cock, moving ever faster as my tight hole loosened more and more. Soon he was thrusting at will, and I could see the true meaning of being used by a man. He was doing what he wanted. It pleased him because it was so tight. Though I derived very little physical pleasure from my anal deflowering, the submissiveness of it turned me on incredibly. I squeezed his cock with all my might, making him moan in appreciation. I could now control how tight I was, and took full advantage of my new-found talent. It didn't take much longer for my contractions to push him over the edge. He thrust his penis deep inside me and held it there. I could feel it pushing against the depths of my rectum, then I could feel the contractions of his cock. He remained hard for several minutes afterwards, then slowly removed himself from the grip of my asshole. The friction was painful for my abused part. He went downstairs, leaving me tied on my bed. His semen dripped from my open asshole onto the floor. After a while he returned. His dick was limp, but he told me to take it in my mouth. I could taste his come and my ass on it, both dried on his cock. It was gross, and I had to really force myself to do it. He got hard quickly and decided to fuck my ass again. I was still pretty loose, but the tissue was sore and the friction was difficult to take. After he came this time he stuck a wad of tissue paper up my butt and again forced me to clean him with my mouth. When he was done he untied me and left, saying only that I hadn't performed badly, considering that it was only my first night. I feel asleep, exhausted, within minutes of when he left. I awoke the next morning and groaned when I realized I still had tissue paper in my sore ass. I tenderly removed it, thinking about the previous night's events. I can't wait until I see Steve again.