My Sister, my Bully I could be real ashamed of this, but what the hell. Marcie might just as well be named Helga or Gertrude to capture her valkyrie-like stature. She's 6'1" and weighs around 170. I'm about 5'5" and weighed about 135. She's also a Big Cheese senior in high school and I'm a lowly underclassman sophomore. She thinks that makes her the queen of the world and for all I can do about it, she might be. She was always a pain, but this year she has become even more of a terror. And a rapist. Our folks were only going for the weekend, so they guessed they could trust us. It was only one night, and we were good kids. They gave us emergency numbers and told us how much they were counting on us and left. The door had just closed when Marcie went into Mother Superior mode. "Now you know I'm the boss and what I say goes," she said with a vise-grip on my arm. I just said, "ow" and "let go", but I got the message. Marcie had big plans and I wasn't going to interfere. Another couple of months and I would have taken the car and went somewhere and left her to her dirty deeds, but I didn't have my license yet and I was stuck at home. That meant I holed up in my room after supper and tried to pretend I wasn't home. That seemed to suit Marcie fine since I didn't have any more trouble with her then. She was busy anyway, planning for the party. So typical, but I would have done the same thing if I was 17. I heard a bunch of cars pull up about 7:00 or so and the stereo get turned up loud. Big hairy deal, as far as I was concerned. If I was 17 I might have cut them more slack, but there was no way I would have any fun down there even if Marcie didn't catch me. Two years are like a lifetime between 15 and 17 and I knew I would get nothing but flak. Besides, I had just got Wizardry 8 and I had hundreds of hours of role-playing ahead of me. It was actually kinda sweet to know I could play until my fingers fell off and no one would try to interrupt me. That held out to about 9:00. I'm glad my desk faces the door. If I had to do more than lift my eyes from the screen, I would have missed my glimpse of cheerleader tit. B.J. Wittman, quarterback, despoiler, general Mongol ravager, had opened my door and was pushing Shanna Fillman into my room. Shanna's bra was up around her chin and her shirt was open. Her left tit was in full view for a second. "Hey, there's a kid here," Shanna complained and jerked her shirt together, "Yeah," B.J. said, glaring at me with a look I always figured meant he was trying to think, "Okay." He took his lead from Shanna, who was backing out of the room and closed the door again. Aha! It was that kind of a party. Marcie would be doing the laundry tomorrow. The thought that ole' B.J. and Shanna were humping like beaver in one of the other bedrooms gave me a dry mouth and an instant woody. Suddenly role-playing didn't seem like such a great thing- not until I found the fabled nudity code. I still didn't want to creep around the halls and try to peek. That was so 13. Instead, I did an enhanced 11. I dressed like the Shadow Avenger, all in black, and crept out my window and along the porch roof. That was Marcie's room and the one I imagined that the thick- headed B.J. was headed to when he blundered into mine. One eye crept to the corner of the window, expecting to see B.J. and Shanna going at it. Only it was Marcie. I couldn't see the guy's face, but I could see Marcie all naked under him. Her tits were prettier than I thought they'd be, real nice and round where they slid to the side off her chest. And they kept bouncing as the boy thrust into her. I got a real strange feeling in my stomach and pulled away from the window. I thought about going back to my room, but there was one more window I could look in. That wasn't B.J. and Shanna, but it was Alan Everson laying on his back as total babe Wendy Guyer sucked his dick. That cured my stomach right away. "Come on, Wendy, let me just put it in a little," Alan was whining. Geeze- how greedy, I thought, a maximum babe giving him head and he's begging for more. But maybe I was being hard on Alan. Maybe he was bargaining. It made Wendy suck him faster, trying to make him come and he kept trying. "I only want to make it good for you, too," he lied, "Let me just rub it up against you." It was the thrill of my young life. Wendy took her mouth off Alan's cock and raised up. Magnificent. Whoppers. Major League yabos. Wendy had a bigger set than I had even fantasized about. They were creamy white with buckskin nipples- real small looking nipples on such huge tits. "How about if I let you do that thing again?" she asked, plaintively. "That thing" was obviously the lesser of two evils to Wendy. It might have been Alan's real goal. He accepted the compromise pretty quick. He got up and she lay down with her head in an uncomfortable looking position just off the edge of the pillows. I didn't care how much her neck bent as long as I got to look at those tits. Then Alan got on top of her and put his dick between her tits and pulled them up around it. He could just get the head to her mouth and when he did, she would lick it. It didn't even take him a minute of fucking her tits to shoot off. But I watched the whole thing with interest. Then I decided it was time to creep back in my room and whack off like crazy. And I got caught. Marcie was finished and had her clothes on as I peeked in passing. But she was looking out the window. I knew she saw me and I tried to scramble into my room to get back to my game before she could get to my room. I waited. My damn sister had taken my hardon right away with one look and now I was sitting waiting for her to yell at me. I waited some more and then I really started playing the game again. It was way after 10:00 when I started hearing car doors and people leaving. I was hoping Marcie hadn't seen me. I was beginning to believe it. It was getting pretty late for me- even for a weekend and I decided to get ready for bed. I had just gotten my pajama bottoms on and was ready to climb into bed when Marcie came in. "If it isn't my sneaky little brother in his p.j's," she smirked, "I have a couple of things to get straight with you. First off: we had a quiet little night. Wendy and Shanna came over, but there was NO party of any kind. Understand?" I just smirked right back at her. I couldn't be intimidated out of a secret like this that easily. "You little shit!" she snapped, stalking toward me, "You better forget tonight. And you better forget what you saw in my window." I knew she had seen me. I just had expected her wrath to fall on me quicker. On the other hand, I had some real ammunition when our parents came home. She had to be careful with me. She couldn't kill me, so I sensed a deal. So much for my senses. I think she had gotten some outside advice from her friends. When she got real close, I tried to hit her. I knew that was a bad move, but I wanted to show her I wasn't going to go down easy. She caught my hand easily and then twisted my arm until she had me in a hammerlock. I was caught against her and she slipped her free hand down over my chest and down into my bottoms. "What have we got here?" she teased as she twisted my arm harder every time I tried to get away, "I feels like a penis, only smaller." Ha ha. I didn't appreciate being helpless as she molested me, but I had a worse problem. My dick didn't care that it was my sister's hand playing with him. To an embarrassment worse than the pain, my dick got hard in her hand. "Oh oh oh, we'll have to see what this is," she heckled me as she reached up and pulled open the snaps. My pajamas pooled around my ankles and I was naked for my sister to look at. I felt like my entire body flushed red as she looked over my shoulder and clucked her tongue. "Does baby brother have a stiff little willie?" she babytalked at me, "Then big sister ought to take care of him." I had no clue what was going through her demented mind. But throwing me down on the bed and climbing on top of me wasn't on the list. "Wanna 'nother look?" she said as she pulled her shirt over her head. She was sitting on my chest with her knees in my armpits, effectively keeping me from fighting her off. Except my desire to remove her had faded when she took off her shirt. I wanted to touch her tits instead. She must have seen that thought come over my face. "You lie there and play with them and I won't stop you," she said. Hell, I knew it was some kind of trap, but at least I would get to play with her tits. I could kinda get my arms around her legs and it was enough to reach her breasts. I could get my fingers on them without grabbing them very good, but then Marcie bent forward and they fell into my hands. It wasn't to let me play with her tits that she moved. She was tugging down her shorts. I could only guess what she had in mind. When she grabbed my dick and scootched back so she could settle down on it, I blew all my circuits. It was like nothing I had ever imagined. I even forgot it was Marcie. There was pussy around my dick and it was wet and warm and good! I hadn't guessed it would feel so smooth and slippery and at the same time tight. Goddamn! I was fucking! Goddamn! And then Marcie started to move her ass. Her shorts pulling across my belly as she lifted herself was only a minor distraction as she rode up and then plunged down on my dick. "You look like that feels good," Marcie teased, "Best pussy you've ever had isn't it?" "Oh God! Marcie," I sputtered, "It is good. Please don't stop!" Normally I would have bitten my tongue off rather than admit she had that kind of power over me, but at the time I didn't even notice. It was too important that she keep moving up and down on my dick. I was afraid what she might demand to continue. I was afraid because I knew I would agree to anything to have her keep fucking me. She only asked one thing. "Now you tell me before you pop," she warned me, "You tell me for sure, or you'll be sorry." "Now!" I gasped. "Now what?" she said with maddening stupidity. "I'm coming, I'm coming," I squealed. "Shit!" she yowled and almost fell over getting off me. The shorts made it tough on her reversing positions, but her pussy leaving me delayed the inevitable long enough for her to take my throbbing dick in her mouth. It took all of two sucks before I exploded and it caught her enough by surprise that I jetted off twice before she got her mouth off me. She spit my semen on my belly as she jacked the rest of my climax out of me. I was about to thank her most sincerely when she got up on her knees and pulled up her shorts. She was grinning at me. "Now tattle on me Mr. Sister-fucker," she gloated, "I bet Mom would like to know you've been doing the nasty with your sister." I thought of it more as an acceptable accord than a victory for Marcie. I would have agreed to: keep quiet and I'll let you fuck me. I just grinned at her. Now all I had to do was find out her secrets. We knew the established payment method.