Empty Train Shoulder Bump with Busty OL Sparks Uncontrollable Arousal

On an autumn afternoon, the suburban local train was empty as usual. I'm Shogo, a delivery man in my late twenties and single. After pedaling around with packages all day, riding this empty train is my only break. Outside the window, autumn leaves flicker by, and a cool breeze flows through the car. Today I was a bit tired. I'd made so many stops in the morning that my legs felt like lead. As I sat down, the bench across from me was empty. No one was next to me either, and just as I was about to fiddle with my phone, the train stopped and the doors opened. A woman stepped in. She looked like an office lady in a suit: black blouse and tight skirt. With a bag over her shoulder, she was breathing lightly. She sat in the empty seat beside me. Every time the train swayed, our shoulders brushed at that close distance. (She's pretty close...) I didn't know her name, but later I decided to call her Miyuki in my fantasies. She had the air of a graphic designer. Her hair was straight to her shoulders, and her makeup was light. The soft autumn sunlight streamed through the window, gently illuminating her skin. When the train started moving, it swayed lightly. Her shoulder touched mine. The soft sensation came through the fabric. (What is this...) At first I thought it was my imagination. But on the next curve it swayed again, and our shoulders pressed together. Her blouse shifted slightly, and the swell of her breasts lightly pushed against my arm. That feeling was unbelievably soft and warm. Her breasts were clearly large. The blouse was tight, and white skin peeked through the gaps between buttons. They looked like H-cup or maybe even bigger. The breasts, taut against gravity, swayed faintly with the train's motion. In the humid autumn air, the cleavage seemed slightly moist and glistening. I quickly looked away. My heart pounded. My crotch grew hot, and my cock began to swell inside my jeans. (Dangerous, getting hard here...) It was supposed to be a non-erotic commute, yet my mind was a mess. She was on her phone, sitting defenselessly, and I felt her glance toward me now and then. Did she notice? Or was it my imagination? The train swayed again. Our shoulders bumped, and this time the side of her breast pressed firmly against my arm. The soft, springy elasticity. The weight of her breast sank against me through the fabric. My cock was fully erect. The head rubbed against my underwear, and precum began to seep out steadily. (Precum's coming out... it won't stop...) The crotch of my jeans grew damp and sticky. Her breast scent, or perhaps the sweet shampoo fragrance, drifted over and excited me further. Even as the autumn breeze passed through the car, my crotch stayed unbearably hot. She leaned a little closer. Was it the train's sway? No, I thought her gaze paused on my crotch for a moment. Was she smiling? Or smirking? Fantasies exploded in my head. (Miyuki is so close. Her breast is touching my arm... I want to touch it more. I want to grab and squeeze it...) In the fantasy, I roughly opened her blouse. Buttons flew off, and huge breasts spilled out. H-cup breasts, pink areolas spread wide, nipples plump and erect. Sweat-moistened skin glistened. I grasped both breasts with my hands. They were so soft my fingers sank in. Breast flesh overflowed between my fingers. "Shogo, you're this hard already?" Fantasy Miyuki whispered. Her hand reached for my crotch and lowered my jeans zipper. My cock sprang up. The precum-slick head tangled with her fingers. (Ah, Miyuki's hand is warm... is she going to give me a handjob?) She pressed her large breasts together and sandwiched my cock in the valley. A titjob. The soft breast flesh enveloped my cock and stroked up and down. The slippery sensation, mixed with precum and sweat, made it glide smoothly. Her nipples brushed my stomach, sending tingles. "Let out more. Please cover Miyuki's breasts with your cum..." Fantasy Miyuki said sweetly. I thrust my hips, driving my cock into her breasts. The valley was tight, the pressure exquisite. The head buried in soft flesh, pleasure exploded. Thick spurts of cum shot out. White fluid splattered across her huge breasts, staining the cleavage. Her breasts were coated, cum dripping down. Back in reality, I desperately tried to hide my crotch. I pressed down with my hand to suppress the erection, but it was no use. The train swayed again, and her shoulder bumped into me. The breast sensation returned. The soft weight sank against my arm. (I can't take it anymore... so much precum that my underwear is soaked. My cock tip is twitching...) Her gaze met mine again. She smiled defenselessly. Her lips looked moist, and the fantasy ran wild once more. This time the fantasy was cunnilingus. I rolled up her skirt on the train, tore the black stockings, and shifted her panties aside. Her pussy was exposed. Pink folds glistened wet, her clit plump and swollen. I buried my face and licked. The salty taste of her juices spread in my mouth. Her large breasts pressed against my head, their weight compressing my face. "Shogo, there... suck my clit gently... ah!" Fantasy Miyuki moaned. Her pussy twitched, wrapping around my tongue. When I inserted a finger, the inside was hot and tight. Wet sounds filled the air as juices dripped. I pressed my cock against her entrance. The head parted the folds and slid in deeply. I thrust while squeezing her breasts. They bounced with each movement, making slapping sounds. I took her nipple in my mouth and sucked. The breasts, swollen as if they might leak milk, were my dream. In cowgirl position she rode me, her hips moving above. Huge breasts slapped against my face in soft waves. Sweat-damp skin pressed close, the moist sensation erotic. (Miyuki's pussy is tight and warm... my cock feels like it's melting...) Climax came with a creampie. I pumped cum deep inside. It overflowed from her pussy and ran down her thighs. I kissed her large breasts while savoring the afterglow. But reality was different. The train reached my station. She seemed to be getting off too and stood up. Our shoulders touched one last time, leaving the memory of her breast's softness. My crotch was still hot and sticky with precum. Desperate to hide the erection, I carried my bag in front and got off. She smiled and gave a small bow. Her hair swayed in the autumn breeze as she walked away. The silhouette of her skirt emphasized her hips, and her large breasts swayed. (Even though she was so close, I couldn't do anything... only my fantasies remain, carrying the lingering excitement.) I got home and collapsed on the bed. Touching my crotch, it was still wet. Every night I'll probably masturbate thinking of Miyuki's huge breasts. The soft sensation and memory of precum drive my virgin mind wild.