I turned eighteen last month and moved back home for the summer, but the second I saw Daddy in the kitchen that first night, I knew I wasn't there to help with chores. Mom was working late shifts again, leaving us alone in the big house, and my pussy got wet just watching him lean against the counter in his work shirt, muscles tight from years on the job site. I wore a tiny tank top with no bra and cut-off shorts that rode up my ass, and when I hugged him hello I pressed my tits right against his chest and felt his cock twitch.
That night I started slow but dirty. I walked around in just a towel after my shower, "accidentally" letting it slip so he caught a full view of my shaved pussy and hard nipples. "Oops, Daddy," I said, laughing, but I didn't cover up fast. His eyes locked on my body and he swallowed hard, telling me to go put some clothes on, but his voice was rough and his pants were already tented. I smiled and went upstairs, leaving the bathroom door open while I touched myself, moaning loud enough for him to hear from the hallway.
The next few days I kept pushing. I sat on his lap while we watched TV, grinding my ass against his dick until it was rock hard under me. "You feel so good, Daddy," I whispered, and when he tried to push me off I grabbed his hands and put them on my tits. "I've wanted this forever. Mom doesn't have to know." He groaned but didn't stop me, his fingers squeezing my nipples while I rubbed my soaked shorts on his bulge. By the third night I was done teasing.
I waited until Mom left, then went downstairs naked. Daddy was on the couch with a beer, and I climbed right onto his lap facing him, my wet cunt grinding on his jeans. "Fuck me, Daddy," I said straight out. "I want your big cock inside me. I've been touching myself thinking about it since I was legal." He tried to protest but his hands were already on my ass, spreading me open. I unzipped him and pulled his thick dick out, stroking it hard and fast while I told him how many times I'd cum imagining him pounding me.
He gave in fast after that. I sank down on his cock in one slow push, taking every inch while I moaned "Yes, Daddy, fill your little girl's pussy." He grabbed my hips and started thrusting up hard, fucking me deep and rough like he'd been holding back for years. I rode him filthy, tits bouncing in his face, telling him how tight I was for him and how much I wanted his cum. He flipped me onto the couch, spread my legs wide, and slammed into me, balls slapping my ass while he called me his dirty girl.
We didn't stop there. I sucked his cock clean after he came inside me the first time, licking up every drop and begging for more. He bent me over the kitchen table next, fucking my ass with spit and cum for lube while I screamed his name.

By morning we were in his bed, me on all fours getting railed from behind, his hands pulling my hair while he told me I was his now. I came over and over, squirting on his cock, promising I'd seduce him every chance we got.
The summer turned into our secret routine. Every time Mom was gone I was on Daddy's dick, riding him raw in every room, letting him use my mouth, pussy, and ass however he wanted. He got rougher, spanking me red and choking me lightly while he pumped loads deep inside me, and I loved every filthy second. We never talked about stopping. I was his, and he was mine, and the risk only made me wetter when I heard Mom's car pull up and we had to pretend nothing had changed.
It felt perfect, dirty, and exactly what I needed. Daddy never said no again.