The dominating Nympho I happened to run across a very rare creature: an honest-to-god, genuine nymphomaniac. I thought they were mythical, like unicorns, but she was real. But she also had a dark side. Her name was Sandy, and I'd seen her before at various parties with her boyfriend, who I knew from school. She was pretty and looked Scandinavian, with long straight blonde hair and an hourglass figure. Kind of tall, about 5'8", maybe 135 pounds, she was a licensed massage therapist. At this particular party we had started chatting and to my surprise, she was being very provocative, even suggesting we meet the next day for lunch. "What about your boyfriend?" I asked. She dismissed the idea with a wave of her hand. "It's over," she said. "Sorry to hear it. Let's meet." I was more than ready to get to know her better. The next day we had lunch at a restaurant near my house. "Where do you live?" she asked, "why don't you invite me over?" I couldn't believe my luck. Back at my apartment we sat on the couch and within a few minutes we were making out hot and heavy. She was an outstanding kisser, with full, soft lips and a very aggressive tongue. Minutes after that we were in my bedroom hurriedly getting naked. I then discovered another extremely rare quality of hers -- she was one of those unusual women who were multi-orgasmic. Once she started to come, the orgasms would come like crashing waves, one after the other. She was also what you would call a "screamer'. She started moaning, then crying out, then writhing and frantically bucking while her fingernails raked my back. It was all I could do to stay on top of her and maintain any kind of rhythm. Finally I came and rolled off of her. We were both perspiring heavily. "That was great," she panted, "but I gotta go; I have a massage appointment," and off she went. I discovered the nymphomaniac part a few days later when she called one evening and asked if she could come over. "Sure" I said. When she got there I was prepared to take her to dinner, but she wasn't interested. We went straight to the bedroom, had another wild bout, and thirty minutes later she was gone. This was her pattern. She wasn't interested in wining and dining, going to movies, or any of that dating ritual. She barely liked foreplay. She just wanted sex and lots of it, preferably in the missionary position with me on top holding on for dear life. Over the next couple of months I saw her two or three times a week. Who could ask for anything more, right? Well, judging from a few nuggets of information she dropped every now and then I was able to figure out that she had not in fact broken up with her boyfriend. She was sleeping with him too, and I suspect a few others. I honestly began to think that she was getting laid every day. The other thing was, I wanted to go on dates. I liked going out. I also met a girl I liked very much and we were starting to see each other often. But I also liked seeing Sandy on a regular basis. I worked from home and she had clients in the area, so it worked out that I was her "weekday morning guy," which was fine with me. Then one morning, as we were making out in bed, I decided to vary the routine. The previous week she had scratched up my back pretty good, leaving some long welts. I had ended up sleeping with the girl I was dating and had to be cautious she didn't see the marks, which would have required an uncomfortable explanation. I didn't want to blow it with this girl, so my idea was to have Sandy on top. I rolled over, taking her along, which at first she resisted, already being in the throes of an oncoming orgasm, but she figured out what I was getting at and straddled me, hips pumping away. Within seconds she was screaming and tossing her head, hair flying all about her as she pounded away on top of me. All of this was great, my back was unscratched, but looking up at her big breasts I began to get worried. It may sound dumb, but they were slamming up and down on her ribs and it looked as though she was in danger of losing her boob muscle tone. I know, sounds crazy, right? But I really liked those breasts, easily D-cups, and didn't want her to damage them. I propped myself up on one elbow into a semi-sitting position and wrapped the other arm around her waist to pull her close. It was awkward for me and then the orgasms hit. She stiffened, threw both arms around my neck, and pulled me tight against her chest. I was buried in her cleavage. I was enjoying it in there, but after a few moments had trouble breathing. I pulled on her arms, trying to loosen her grip while she bucked and thrashed obliviously. I couldn't budge her. I pulled harder, then with all my might, all to no avail. She squeezed even tighter and I started to panic -- I was going to pass out! I found a fistful of her hair and pulled hard. After a second, she released me and I fell back on the bed gasping for breath. "Hey!" she said, angry not only at the hair pull, but no doubt because I had also interrupted her climax, "what was that for?" "I couldn't breathe" I panted, " I was buried in your cleavage". "Well, why didn't you just pull away?' "I tried. I couldn't budge you. It was the only way to get your attention." "Oh," she said, looking down at me with a half smile "Sometimes I don't know my own strength." So I decided to eliminate that position and a few weeks went by. Then one morning, while I was immersed in paperwork from my job, she just showed up at my door. " Sandy," I said, "you picked a bad time. I am buried with paperwork that really needs to get done this morning. How about a rain check?" She pouted, sticking out her lower lip in a very sexy way and trailing her hand down my chest. "Really? You couldn't stop for just a few minutes?" "Really, I can't" She began to rub my crotch. "Just a few little minutes? You would feel a lot less stressed..." I grabbed her wrist before she gave me a hard-on. "I'm sorry," I said. "Okay," she said, "but I really need to use your bathroom." "Sure, come on in." She went down the hallway and I went back into the dining room, where I had several stacks of papers I was working on. Within a few minutes I was immersed in numbers again. A few minutes after that, I heard a noise and looked up. Sandy was standing in a doorway wearing nothing but a towel. "Sandy..." She dropped the towel. She looked good and she knew it. I just shook my head. "There is no way," and went back to my papers. I didn't need the distraction of her naked body. "You're no fun," she said, coming over to the table. She pulled out a chair and sat across from me. It was a glass-topped table and I could see her thatch of pubic hair below. She propped her breasts on the table, the big globes looking like pink-nippled sundaes. "I'll just sit here until you're done. I won't bother you, will I?" I refused to look at her. "Sandy, I have got to get this done." She slid her chair back and stood. I thought she was going back to the bathroom, but instead she came around behind me and began to rub her breasts against my back and shoulders. I forced myself to ignore her. Then she said something that sent a little chill down my neck. "I'll smother you," she warned. "What do you mean?" I turned to look at her. She pushed her bare breasts into my face. "You know what I mean." "Don't be ridiculous, I said, starting to turn away. Suddenly she threw both arms around my neck and pulled me into her chest. I tried to stand and push her away but she leaned back and pulled me out of my chair. I fell face down on top of her, locked in her embrace, my shouts muffled by her tits. I tried pulling her arms away with all my might but much to my horror, was having absolutely no effect. She was doing it again! She began to rock from side to side, strengthening her grip. We rolled around and she locked her legs around my waist in a scissors hold, squeezing even more breath out of my body. Nothing I did made any difference; she was in complete control. Loosening her grip a little I was able to raise my head enough to get a little air. "You give up?" she asked, "ready to come to mama?" "Let go of me," I grunted. I tried pulling on her wrists but it was useless. I probably outweighed her by thirty pounds but it did me no good; she was completely manhandling me. She tightened her grip and once again I was buried in her chest flesh. "Let me know when you've had enough," I heard her say. After a few more moments I knew it was no use. "Okay, okay" I managed to sputter out. She released me and I rolled off her onto my back. She rose to her feet and stood over me. Looking up at her hips and breasts I was embarrassed to realize that although humiliated, the whole struggle was pretty damn erotic. She bent down and unzipped my pants. She then noticed my erect cock and smirked. "See? That wasn't so bad. You should have just surrendered right away." She lowered herself onto me, already well lubricated. As she slid onto my cock she began to kiss my chest. " I've always known I was stronger than you. You didn't realize that?" "That's crazy," I said. She sat up and looked down at me with another smirk. She flexed her arm and made a muscle. I had to admit that, while not sinewy, she had very good bicep definition. "You don't think that all those massages make you stronger? All I do every day is squeeze and rub. These hands are like iron. "Feel'" she commanded, putting her hands up like she wanted to lock them with mine. I reluctantly locked hands and noticed for the first time that her hands were as big as mine, with long graceful fingers. She gave a squeeze and pain instantly shot up my arms. I was obviously no match for her. "Okay, " I said, wincing, "you're strong". "Stronger than you," she said. I sighed. "Stronger than me," I admitted. She then took over and proceeded to fuck me. We no longer pretended that it was making love, or even having sex. Those terms were too wimpy to describe what we did. She fucked me. That was it. This went on for a couple more weeks before I decided to end it. The new girl I was dating was much more normal and even though the fucking was enjoyable, I didn't enjoy Sandy acting smug and bossy. I wanted a regular girlfriend and a regular sex life. I stopped answering her calls. She left a few messages on my answering machine I ignored and after a month had gone by, she had pretty much stopped calling. Everything was going well with my new girlfriend and we were at a party with some friends when I saw Sandy walk in across the room with her boyfriend. I turned my back and hoped she hadn't seen me. Half an hour later I went into the kitchen to replenish our drinks when Sandy came up behind me. I heard her voice and stiffened. "Well," she said, "looks like all your time is taken up with the new girlfriend." "Hi, Sandy; it's true. I have a girlfriend, that's why I haven't called you back. I think it had to end." "Aren't you all virtuous. There's no reason we can't keep on seeing each other. I have a boyfriend and it doesn't slow me down," she looked me up and down. "We can still have fun." "I don't think so" I said, and started to leave. We were the only two people in the kitchen. Behind her was a door that led into the garage. She reached behind her, opened the door and with her other arm pulled me into the garage. She closed the door behind me and pushed me up against the wall. It was dark, and I could hear sounds of laughter from the living room. "Now listen," she said, "I decide when it's over, not you." I was sweating and flattened against the wall, leaning away from her. "Come on Sandy, this is getting really weird." For an answer she wrapped both of her hands around the back of my neck, pulled me forward, and pressed her lips against mine. While I struggled uselessly to pull away from her she plunged her tongue deeply into my mouth and held me tightly until I stopped struggling. Finally, as I sagged in defeat she came up for air and whispered in my ear. "That's more like it. Just surrender, you know you can't win." "Okay" I muttered. "You know what I'll do if you resist?" "What?" She leaned closer and whispered in my ear, "I just might take you inside, pull your pants down and give you a good spanking. Would you want that?" "No, Sandy, come on now..." "Wouldn't that be embarrassing, in front of all your friends?" "Sandy, please..." "You know I can do it, too, don't you?" I was totally defeated. I had never felt so low in my life. This big-boobed Amazon was going to destroy me. "Yes," I said, "I know you can do it." She gave a little self-satisfied laugh and let me go. "You just keep that in mind and we'll get along fine. Now, go back in the party; have a good time, and I'll see you tomorrow morning." She opened the garage door and went back inside. Waiting a few moments, I did also.