Grabbing a thick nipple with each hand, I pulled Ruth through the small dining room into her darkened living room. She gasped as I bent her over in front of a wing chair and put her hands on the chair arms. Then I ripped my clothes off while enjoying the sight of her fat pussy lips peeking out from between the tops of her thighs, just below her dark, puckered asshole. She looked anxiously at me over her shoulder and her heavy breasts swung with every movement. Finally I had my clothes off and I stepped up to Ruth's wide, gorgeous butt. I rubbed the head of my dick once between her pussy lips and found her already slick and wet inside. I fitted the bulging head of my rod into the mouth of her waiting pussy and pushed. Ruth gasped. Two thrusts and I was buried to the hilt, surrounded by her warmth and wetness. Ruth groaned deeply, "Sooo goooooood!" I balanced myself, pulled out and slammed my prick into her until my hips slapped against her firm buttocks. Soon my hips were slapping against her ass in a steady, powerful rhythm. Ruth panted and groaned, sometimes giving a quick whimper when I pulled out, leaving her pussy momentarily empty. My dick glistened with her cunt juices and wet, sticky sounds filled the room. With every gasp, I inhaled the wonderful aroma of her sex. The force of our fucking pushed the chair across the polished hardwood floor until it stopped against a wall. Ruth had to brace herself with her arms and legs as I began pounding into her even harder. She threw her head back and uttered a long, low howl of arousal, feeling the forceful, repeated penetration of her sex. We were making so much noise that I missed the sound of the key in Ruth's front door, but I noticed immediately when the door began to open. I didn't care. All I wanted was to fuck and fuck the beautiful woman bent over in front of me. The door swung open and a pretty, dark-haired young woman holding a laundry basket stepped inside, turning back to close the door. From the corner of my eye, I saw her turn around and reach out to flip on the lights. Ruth gasped and her pussy gave my dick a hard squeeze when the light flooded the room. She tried to flee, but I leaned both hands on her back, keeping her in position. She turned her face toward the young woman with the laundry basket, who stood a few feet away as if turned to stone, staring at us wide-eyed. I continued my eager thrusts into Ruth's slick pussy and for three or four heartbeats the only sound was the "slurp-slap, slurp-slap, slurp-slap" of our fucking. Then the pretty young woman gave a small cry, dropped her laundry basket, and fled back through the front door, slamming it behind her. Ruth gave an odd groan that somehow conveyed both humiliation and arousal and she began to come. She surprised me by starting to push her hips back, meeting my thrusts and forcing me to increase speed to match her furious pace. She moaned continuously now and her head thrashed back and forth. Her pussy was so wet I could feel her juices soaking my pubic hair and coating my balls. Her climax continuing, Ruth began to collapse forward, resting her head and shoulders on the chair. My come had been rising for some time, and the slightly different angle of her upraised pussy forced my dickhead to rub against the wall of her vagina. A second later I felt my balls contract and the first gush of cum shoot up my penis in a fiery burst. With a sharp feeling of ecstatic relief, cum sprayed from my peehole into Ruth's clasping cunt. "AH! AH! AH! AH!" I grunted as I continued to pull out and force my way back inside her slippery warmth. My nipples were almost painfully erect. "Oooooooooooh! FUUUUUUUCK!" I continued pushing into Ruth and pulling out, slower now with shorter thrusts. The head of my dick was intensely sensitive, sliding against her inner walls, lubricated with a slippery stew of pussy juice and sperm. Finally stopping, we remained in that position for several minutes, Ruth's head and shoulders resting on the chair, her hips raised and her legs spread wide and locked motionless. My dick softened slightly, so I left it deep in Ruth's pussy. My knees were so weak, I felt I would collapse to the floor if I moved. Instead I occupied my hands, caressing Ruth's slender waist and broad, firm buttocks. She gave a satisfied sigh. "You are a GREAT fuck," I whispered finally. "Do you really think so?" she said in a small voice, glancing at me over her shoulder with a relieved smile. "I'm so glad you think so. I really don't know much about sex." "Don't worry, you're terrific, and there's not that much to know," I said. "By the way. Who was that girl?" Ruth's head jerked up, seemingly recovering the memory wiped out by the power of her prolonged orgasm. "That was my little sister," she said. "Naomi moved to Portland a couple of months ago, and she hates the laundry room in her building. I gave her a key so she could do her laundry here. She must have thought I was gone because the lights were off and my car wasn't in the driveway. GOD, that was so EMBARRASSING!" "Don't worry, my beautiful slave," I said. "She's probably at the market right now, looking for the perfect cucumber." Ruth looked puzzled for a moment, then flushed when she understood my implication. "My little sister would never do THAT!" she declared with a frown, but I detected a slight note of uncertainty in her voice. "Did you think you'd be doing THIS tonight?" I asked, rocking my hips slightly so my dick moved inside her. She just looked at me blankly over her shoulder.