My sister Emma walked into my room without knocking, her eyes going straight to the bulge in my shorts. At twenty-one she was two years younger than me, both of us home from college for the summer, and she had been staring at me like that for weeks. “Mom and Dad are gone,” she said, voice low and direct. “Show me that big dick you keep hiding.”
I stood up and dropped my shorts. My cock swung out heavy and thick, already half-hard from the way she looked at me. Emma licked her lips. “Fuck, that’s huge. No wonder you’re always walking around with that thing swinging.” She stepped closer, reached out, and wrapped both hands around it. Her fingers didn’t meet. She stroked once, slow and firm, and I felt myself swell the rest of the way.
“On your knees,” I told her. She dropped without hesitation, mouth open. The head of my cock barely fit past her lips. She sucked hard, tongue working the underside while her hands pumped the shaft. Spit ran down over her fingers. She gagged when she tried to take more, eyes watering, but she didn’t stop. “That’s it,” I said. “Choke on your brother’s big cock.”
Emma pulled off, strings of saliva connecting her mouth to my dick. “I want it in my pussy. Now.” She stripped fast, climbed onto my bed on all fours, and looked back at me. Her ass was round and perfect, pussy already wet and pink. I lined up and pushed in. She was tight, gripping every thick inch as I sank deeper. She moaned loud when I bottomed out, my balls pressed against her.
I fucked her hard and steady, the wet slap of skin filling the room.
Each thrust made her ass ripple. She pushed back to meet me, greedy for every inch. “Deeper,” she begged. “Split me open with that fat cock.” I grabbed her hips and drove in harder, watching my thick shaft disappear into her over and over. Her cunt clenched around me when she came the first time, pulsing hot and tight.
I pulled out and flipped her onto her back. She spread her legs wide. I shoved back inside and leaned over her, pounding deep while she clawed at my shoulders. “Tell me how big it feels,” I growled. “Tell me you love your brother’s huge dick.”
“I love it,” she gasped. “It’s so fucking big. Stretching me so good.” Her tits bounced with every thrust. I bent down and sucked one nipple hard while I kept driving into her. She came again, legs shaking, pussy flooding around my cock.
We changed positions all afternoon. She rode me, grinding down until she took every inch, then bouncing fast while I slapped her ass. I bent her over the dresser and fucked her standing, one hand in her hair, the other reaching around to rub her clit. She squirted on the floor, legs trembling. I pulled out and fed my cock back into her mouth so she could taste herself on it.
When I was ready to come she begged for it inside her. I pushed her onto the bed again, spread her wide, and slammed in deep. My balls tightened and I unloaded, thick ropes pumping into her while she moaned and came one more time around me. Cum leaked out around my shaft as I kept thrusting through it, making sure she took every drop.
We lay there catching our breath, my cock still half-hard inside her. Emma smiled, lazy and satisfied. “We’re doing this every day they’re at work,” she said. I pulled out slowly, watching my cum drip from her swollen pussy, and knew she was right.
