Accidentally came inside my mother's best friend

I hadn't planned anything at all that evening. Seriously. I just came to my mom's for the weekend, to get away from the dorm and eat some proper home-cooked food. I'm nineteen, a second-year student at the University of Technology. When I walked into the kitchen, Mom was busy at the stove, and Natalya was standing next to her. Her best friend. We'd known each other my entire adult life. She'd been coming to visit us for as long as I could remember. Tall, brunette, always perfectly coiffed, smelling of expensive perfume. Mom constantly says how great Natalya is, how well-preserved she is, even though she's supposedly forty-four. And that's when I looked at her differently for the first time. Not as "Aunt Natasha," but as... a woman. She was wearing a simple housedress, light, just below the knee, sleeveless. It hugged her hips in a way that made something click in my head. "Son, wash your hands and sit down. Natalya is staying with us tonight, her husband is on a business trip, and she left her keys at home," my mother chirped. Spending the night. At my house. I nodded, trying not to stare at her legs as she sat down at the table. But my dick was already treacherously stirring in my jeans. I hoped the evening would pass peacefully. Dinner was noisy. Mom brought out a decanter of liqueur, we drank, I told them a couple of stories from the dorm, and they laughed. Natalya sat across from me, and with each sip of cherry liqueur, her gaze grew more... languid. Or so it seemed to me. "You've matured, Dimka," she said suddenly when Mom went into the kitchen for tea. "You've broadened your shoulders. You play sports, I suppose?" She looked straight at me, and her hand fiddled with the hem of her dress, lifting it slightly on her knee. I swallowed. It was dark under the table, but I could have sworn I saw the edge of a stocking. “Oh, just go to the gym sometimes,” I squeezed out, feeling myself blush. "Youth," she smiled. "That's good. When you're young, you have a lot of strength. You have enough for everything." Mom returned, and the conversation turned to general conversation, but I felt a tension under the table, like static electricity. We drank some more to our acquaintance, then Mom yawned and said she was going to bed; she had work tomorrow. She told me to make Natalya's bed in the guest room, and then crawled off to the bedroom. We were left alone in the living room. I went to lay the sheets, feeling her gaze on my back. When I returned, she was standing by the window, the moonlight shining through her dress, outlining the silhouette of her body. "Will you walk me to my room?" she asked quietly. "It's dark, I'm afraid I'll trip." A nightlight was on in the house. It was impossible to trip. But I nodded like an idiot. We walked down the hallway. Her fragrant trail hit my nose harder than cherry liqueur. At the door to the guest room, she stopped and turned sharply to face me. We were standing too close. "Dim," she breathed out, looking into my eyes, and then lower, at my fly, where a real stake was already standing. "Your mother won't find out." I didn't even understand what happened. Her hand landed on my chest and pushed me into the room. The door clicked behind me. "Shhhh," she whispered, pressing her finger to my lips. "Just be quiet." In the dim light, I saw her eyes. They were shining. She was no longer "Mom's friend." She was a female who wanted sex. And I wanted it. So much so that my balls were aching. “Aunt Natasha...” I began, but she cut me off with a kiss. Her lips were soft but powerful. She immediately stuck her tongue in; it smelled of tincture and some kind of sweetness. Her hands were already roaming my back, lifting my T-shirt, and then they dove into my pants, straight to my butt. “Holy shit,” I breathed into her mouth as she squeezed my buttocks. “What are you doing?” “I want to try some young meat,” she laughed hoarsely, her lips moving down to my neck. “Or are you against it?” Instead of answering, I crushed my lips to hers and grabbed her ass with my hands. The dress was thin, and there was nothing underneath. Nothing at all. A bare ass under the thin fabric. I was completely blown away. I turned her around and pushed her onto the sofa. She fell backwards, lifting her dress to her waist, and I saw them. Stockings. At the waist. And between her legs—a neat triangle of dark hair, damp and glistening in the dim light. "Looking?" she grinned, spreading her legs. "Come here, my dear." I fell to my knees in front of the couch. I didn't care about propriety. I buried my face in her crotch, inhaling her scent. It smelled of woman and arousal. I licked her pussy. She gasped and grabbed my hair. - Y-e-e-e, that's it, use your tongue. I licked her pussy like it was my last time. I parted her lips with my fingers and ran my tongue over her clit, sometimes quickly, sometimes slowly. She wiggled her butt on the couch and moaned softly, biting her lip so as not to wake her mother. I thrust my finger inside her. It was hot and tight inside. She immediately tensed and arched. "Holy shit, you're so..." she whispered. "One more finger, come on, stretch me out." I obeyed. Two fingers entered easily, she was wet, like she'd just showered. I fingered her while licking her clit, and felt her tremble. She came quickly. She twitched, clutched my hair, and froze for a few seconds, letting out a strangled moan. Without giving her time to recover, I stood up and tore off my jeans and underwear. My erection sprang out, angry, red, with a wet head. She sat up on the couch and stared at it. "Wow, how beautiful," she breathed, taking it in her hand. "And thick. Come here." She leaned over and took it in her mouth. Deeply. Immediately. I gasped. This wasn't the amateur blowjob girls give in the dorms. She took it like an adult, relaxing her throat, pushing down with her mouth so hard I could feel the walls of her throat. She stroked the base with her hand, and rubbed the head against the roof of my mouth. Saliva ran down her chin, dripping onto her tits, which had spilled out of the neckline of her dress. "Natasha, I'm going to cum," I croaked, pulling away. "I want to fuck you." "Fuck me," she nodded, lying on her back and throwing her legs over my shoulders. "Just don't make any noise." I hovered over her. The head rested against her wet folds. I entered. Slowly, feeling her walls part. She was tight as a virgin, but slippery. I sank into her centimeter by centimeter until my balls were pressed against her ass. “Fuck...” we both exhaled. I froze, letting her adjust. She looked up at me, biting her lip. "Fuck me, Dimka," she whispered. "Fuck me hard." I started moving. Slowly, then faster. The couch creaked in time with my thrusts. I pulled out almost all the way and then thrust back in, slapping her ass. She moaned through her teeth, clinging to my hands. I felt her pussy pulsate and squeeze my cock. I changed positions. I put her on all fours, on the edge of the couch. I pushed her hand away, which she bit to keep from screaming. And I entered from behind. Deeply. All the way. It was something else. Seeing my head, wet from saliva and her juices, enter her, seeing her labia spread. I pumped like a piston, and she moaned and shook her ass, impaling herself on me. "Harder!" she breathed. "More! Fuck my pussy!" I grabbed her by the hair, pulled her head back, and pounded into her with such force that the sofa slid half a meter away from the wall. I felt like a little more and that would be it. I was on the edge. "Natasha, I'm coming..." I croaked, trying to slow down enough to pull him out. "Where to? Should I pull him out?" “No!” she hissed, thrashing in ecstasy. “Don’t you dare! Cum inside me! Fill my pussy with your cum! I want it! I…” Her voice broke into a squeal, which she stifled with the pillow. Her body arched, her pussy clenched with such force that it simply gutted me. I growled, clinging to her hips, and felt myself gush. Hot, powerful, long. I came inside her, pushing my cock deep, smearing cum along her walls. Thrust after thrust. She came after me, shuddering and shaking slightly. We froze in this position. I was inside her. She was lying face down, breathing heavily. I slowly pulled out. A thick white liquid immediately flowed from her hole, running down her leg onto the sofa. “Holy shit,” I blurted out, plopping down next to him. She turned her head and smiled with a cloudy look. "I'm shocked myself," she breathed out. "I haven't been fucked like this in a long time. My legs are shaking." I was silent. I looked at her smudged mascara, her tangled hair, the cum dripping from her onto the light-colored blanket. It began to dawn on me what I had just done. I came inside my mother's best friend. Without a condom. Inside. "Don't worry," Natalya said, as if reading my thoughts. "I have an IUD. And we won't tell Mom. It was just... a great evening." She stood up, swaying, and went into the bathroom. I heard the water running. Then she returned with a wet towel and tossed it to me. - Dry yourself and go to your room. The morning is wiser than the evening. I struggled to pull my pants up, feeling like a naughty dog. At the door, she stopped me, kissed me on the lips, and whispered, "Good night, student." I lay in my room, staring at the ceiling. My dick still ached. My head was buzzing. On the one hand, I was shaking with terror—what if Mom found out? On the other, I could still taste her pussy on my lips and hear her hoarse whisper, "Cum inside me." I came into the kitchen in the morning with a terrible hangover. Mom was making pancakes. Natalya was sitting at the table, fresh as a daisy, in her robe, drinking coffee. She saw me and smiled her most innocent smile. "Good morning, Dimochka. Did you sleep well? You young people never sleep well." I mumbled something in response and buried my face in my plate. Under the table, her foot touched mine and slowly moved up my shin. “Marin, give me another pancake,” she asked her mother and winked at me. I realized that this was not the end.