I married my sister last weekend. Not in some fancy church with witnesses, but in a cheap motel room with a justice of the peace who didn't ask too many questions. Sarah was twenty-three, I was twenty-five, and we'd been fucking like animals since she turned eighteen. The marriage made it official in our twisted way. She wanted my last name on her, wanted to be Mrs. even if it had to stay secret.
The ceremony was quick. We signed the papers, paid the guy, and the second the door shut behind him I had Sarah bent over the bed. Her white dress was still on, bunched up around her waist. No panties underneath because she knew how the night would go.
"Fuck me like your wife now," she said, looking back over her shoulder. Her voice was low and filthy, the way it always got when she wanted it rough.
I yanked my cock out and slammed it straight into her soaked pussy. No slow build-up. We didn't do slow. Her cunt gripped me tight, hot and dripping from the excitement of what we'd just done. I grabbed her hips and pounded her hard, the bed frame slamming against the wall with every thrust. Sarah moaned loud, pushing back to take every inch.
"Harder, big brother. Fuck your wife's tight hole." She reached down and rubbed her clit while I railed her. The dirty talk always pushed us both over. I slapped her ass, left red handprints, and kept driving deep. Her pussy clenched and she came fast, juices running down her thighs. I didn't stop. I flipped her onto her back, ripped the top of the dress open so her tits spilled out, and fucked her missionary style with her legs over my shoulders.
We spent the whole night that way. Raw, nonstop. I came inside her three times before we even ordered food. The first load I pumped deep while she begged for it. "Breed your sister-wife," she growled, and I did, filling her until it leaked out around my cock. We ate burgers naked on the bed, then she climbed on top and rode me reverse, her ass bouncing while she told me how good it felt to be married and still so wrong.
By morning the sheets were soaked and sticky. We showered together but didn't stay clean long. I pushed her against the tile, soaped up her tits, then bent her over and fucked her ass for the first time as husband and wife. She screamed when I worked my cock into that tight ring, but she pushed back for more. "Use your wife's asshole," she panted. I gave it to her slow at first, then hard, reaching around to finger her pussy until she squirted on the shower floor.
We checked out late and drove to the cabin we'd rented for the week. The whole drive she had my cock in her mouth, sucking sloppy and deep, gagging on it while I drove with one hand on the wheel and the other in her hair. When I came she swallowed every drop and licked me clean like a good wife.
At the cabin we barely unpacked.
Sarah stripped the second the door closed and got on all fours on the living room rug. "Take your sister again," she said. I dropped behind her and buried my face in her pussy first, licking and sucking her clit until she came on my tongue. Then I mounted her like an animal, gripping her shoulders and thrusting balls-deep. We fucked in every room that day. On the kitchen counter, against the wall, in the shower again, and finally in the bed where I tied her wrists with my belt and took my time teasing her until she was begging.
The days blurred into one long fuck session. We role-played the marriage part hard. She'd call me husband while I fucked her, and I'd call her my dirty little sister-wife while I came in her. One night I had her on her knees sucking me while I told her stories about how we'd been sneaking around for years, how no one could ever know we were really brother and sister. She got so wet she fingered herself and came without touching her clit.
We went for walks in the woods but always ended up fucking against a tree or on the ground. Sarah would pull her shorts down and bend over, and I'd take her right there, quick and rough, then we'd walk back with my cum running down her leg. Back at the cabin we'd shower and start over.
The last night we didn't sleep at all. Sarah put the white dress back on, no panties again, and we replayed the wedding. I "married" her all over again with my cock, making her repeat vows while I thrust into her. "I take you as my brother and my husband," she said, voice shaking as she came. I filled her one more time, then we collapsed in a sweaty heap.
We drove home the next day knowing nothing had really changed except a piece of paper. But that paper made the sex hotter. We were husband and wife now, still brother and sister, and the secret made every fuck feel like the first time. Sarah reached over while I drove and stroked me through my jeans.
"Can't wait to get home and fuck my husband again," she said.
I smiled and pushed the speed limit. The story was just starting.
