I still can't believe I let it happen. I'm 5'2" and barely 105 pounds, always the petite one in the room, and my husband Mark is sweet but average at best. We'd been married three years and our sex life was fine, missionary with the lights low, nothing that ever left me shaking. Then his friend Derek came to stay for a weekend. Derek is tall, built, and when I accidentally brushed against him in the kitchen I felt the outline of something massive through his jeans.
It made my stomach flip in a way I hadn't felt in years.
That night after Mark went to bed early, Derek and I stayed up drinking on the couch. One thing led to another. He kissed me hard, hands sliding under my shirt, and when he pulled my tiny body onto his lap I could feel that thick ridge pressing right between my legs. "You're so small," he growled against my mouth. "You sure you can take this?" I didn't answer with words. I just ground down on him, already wet through my panties.
We moved to the guest room so Mark wouldn't hear. Derek stripped me fast, his big hands making me feel even smaller as he spread my thighs. His cock sprang out heavy and veined, easily twice the size of Mark's. I stared, heart hammering. "First time with something like this?" he asked. I nodded, cheeks burning. He didn't rush. He let me touch it first, wrapping both my small hands around the shaft, feeling it throb and grow even harder. Precum leaked from the fat head and I couldn't stop myself from licking it off.
Derek laid me back and went down on me, tongue working my clit until I was dripping and begging. Then he knelt between my legs and rubbed that huge cock along my slit, coating himself in my wetness. "Breathe," he said, and started pushing in. The stretch was intense. My petite pussy had never been opened like that. Inch by inch he sank deeper, splitting me open, making me whimper and claw at the sheets. It hurt in the best way, a deep pressure that turned into full-body heat once he bottomed out and his balls pressed against my ass.
He fucked me slow at first, letting my tight walls adjust to every thick vein and ridge. Then he picked up speed, pounding into me with long strokes that made my small tits bounce and my whole body jolt. I came hard the first time just from the fullness, legs shaking around his waist. Derek flipped me onto my stomach, pulled my hips up, and drove back in from behind. The angle let him hit spots I didn't know existed. I bit the pillow to stay quiet while he used my tiny body, grunting about how tight and perfect I felt around his big cock.
We went for over an hour. He made me ride him next, my hands on his chest for balance as I worked myself down onto that monster again and again until another orgasm ripped through me. When he finally came he pulled out and painted my stomach and tits with thick ropes, marking my petite frame. I lay there afterward, sore, stretched, and glowing, knowing nothing with Mark would ever feel the same.
The next morning I walked funny and Derek just smirked. Mark never found out, but every time I see Derek now I remember exactly how it felt to be filled like that for the first time. My body still craves it.
