It started on a normal evening. My brother had invited his friend over like he always did. They were close, the kind of guys who grew up together, played sports, and shared secrets. I was just the younger sister, hanging around the house, trying to stay out of their way. But that night something felt different.

I was in the living room, wearing an old tank top and shorts. Nothing fancy. My brother was in the kitchen grabbing beers. As his friend walked, he looked at me a little longer than usual.

“Hey,” he said, his voice low.

“Hey,” I answered, feeling my cheeks get warm for no reason.

My brother came back laughing about something stupid from their school days. They’re talking loud and drinking. I tried to watch TV, but I kept feeling his eyes on me. Every time I shifted or crossed my legs, I could sense him watching. It made my skin tingle.

Later, my brother got a call from his girlfriend and stepped outside to talk. The house suddenly felt quiet. Just me and him on the chair.

“You’ve grown up a lot,” he said, not looking away.

I laughed nervously. “I’ve always been this age.”

“No,” he said. “You have. You look… good.”

The way he said it made my stomach flip. I didn’t know what to say, so I just smiled. He moved a little closer. His knee brushed mine. I didn’t pull away. I knew this was wrong. He was my brother’s best friend. But my body didn’t care about that.

When my brother came back inside, everything went back to normal. They played video games. I went to my room. But I couldn’t stop thinking about the way he looked at me. I lay on my bed, touching myself slowly, imagining his hands instead of mine. I felt guilty, but I couldn’t stop.

The next time he came over was a few days later. My brother had to run out for something quick. “Don’t leave yet,” he told his friend. “I’ll be back in thirty.”

We were alone again.

I was in the kitchen drinking water when he walked in. He stood behind me, close enough that I could feel his breath on my neck.

“You’ve been on my mind,” he whispered.

I turned around. My back pressed against the counter. He was right there, looking down at me with hungry eyes. I didn’t say anything. I just stared back.

He leaned in and kissed me.

It wasn’t soft. It was rough, urgent. His hands grabbed my waist and pulled me against him. I could feel how hard he already was through his jeans. I moaned into his mouth. My hands went to his chest, feeling the muscle under his shirt.

We didn’t talk. We just kissed harder. His tongue pushed into my mouth. One of his hands slid up under my shirt and cupped my breast. He squeezed, thumb rubbing my nipple until it got hard. I was getting wet so fast.

He broke the kiss and looked at me. “You want this?”

I nodded. I couldn’t speak.

He pulled my shirt off, then my bra. My breasts spilled out. He groaned and bent down, sucking one nipple into his mouth. His tongue swirled around it. I grabbed his hair, holding him there. My other hand reached down and rubbed his cock through his pants. He was big. Thick. I wanted it.

He picked me up and sat me on the counter. My shorts came off easy. I wasn’t wearing panties. He looked at my pussy and licked his lips.

“Fuck, you’re soaked.”

He dropped to his knees and buried his face between my legs. His tongue licked up my slit, slow at first, then faster. He sucked on my clit, and I almost screamed. Two fingers pushed inside me, curling, hitting that spot that made my legs shake. I came hard on his face, my thighs squeezing his head.

He stood up, wiping his mouth. His eyes were dark with lust. He unzipped his pants and pulled out his cock. It was thick and veiny, the head already leaking. I reached for it, stroking him.

He kissed me again, letting me taste myself on his tongue. Then he positioned himself at my entrance.

“You sure?” he asked one last time.

“Yes,” I breathed.

He pushed in.

I gasped. He was stretching me so much. Inch by inch he filled me until his hips pressed against mine. We both moaned. He stayed still for a second, letting me adjust. Then he started moving.

Slow thrusts at first. Deep. Then harder. The counter creaked under us. His hands gripped my ass, pulling me onto him with every stroke. I wrapped my legs around his waist and held on. The sound of our bodies slapping together filled the kitchen.

“You feel so fucking good,” he growled in my ear.

I could only whimper. Every thrust hit deep inside me. My pussy clenched around him. I was going to cum again.

He fucked me faster. Rougher. One hand moved between us and rubbed my clit. That was it. I came hard, my walls pulsing around his cock. He groaned loud and kept going, chasing his own release.

“I’m going to cum,” he warned.

“Cum inside me,” I begged.

He buried himself deep and exploded. I felt every spurt, hot and thick, filling me up. We stayed like that, breathing heavy, his cock still twitching inside me.

We heard my brother’s car pull up outside. Panic hit us. We dressed fast. I ran to my room with his cum dripping down my thighs. He sat back on the couch like nothing happened.

That was the first time.

It didn’t stop there.

Over the next weeks, we found ways. Quick moments when my brother was in the shower. Late nights when my brother fell asleep on the couch. One time in the backyard at night while my brother was inside playing games.

Each time got more intense.

The second time was in my room. My brother was downstairs watching a movie. He snuck in quietly. We didn’t even undress fully. He just pulled my pants down, bent me over my bed, and fucked me from behind. His hand covered my mouth so I wouldn’t moan too loud. He pounded me hard, his balls slapping against me. I came twice before he filled me again.

“You like being fucked by your brother’s friend?” he whispered while he was still inside me.

I nodded, ashamed but so turned on.

He started coming over more often. Sometimes he would text me first. “I’m coming over. Wear that short skirt.”

I did what he said. Under the skirt I wore nothing. When my brother went to the bathroom, he would finger me right there on the couch, two fingers deep while we pretended to watch TV. Once he made me cum while my brother was in the next room.

The risk made it hotter.

One afternoon my brother had to work late. He left us alone in the house. We didn’t waste time.

He carried me to my brother’s room. It felt so wrong, but that made me wetter. He laid me on my brother’s bed and ate my pussy until I was shaking. Then he fucked me missionary, looking into my eyes the whole time.

“Tell me how much you love my cock,” he said.

“I love your cock,” I moaned. “I love when you fuck me.”

He flipped me over, ass up, and took me hard. The bed banged against the wall. I didn’t care. I pushed back against him, wanting every inch. When he came, he pulled out and shot across my back and ass.

We cleaned up fast before my brother got home, but the smell of sex stayed in the room.

Our secret went on for months. Sometimes slow and sensual. Sometimes rough and dirty. He taught me things. How to suck his cock deep. How to ride him until my legs gave out. How to take him in my ass after weeks of teasing and preparing.

That first time in my ass was intense. He used so much lube. Went slow. Whispered dirty things in my ear while he pushed in.

“Relax, baby. That’s it. Take my cock in your tight little ass.”

It hurt at first, then it felt full and dirty and amazing. When he finally came inside my ass, I had the strongest orgasm of my life.

I started craving him all the time. Even when my brother was around, I would look at his friend and get wet thinking about his cock stretching me.

One night my brother drank too much and passed out early. We took advantage in the living room. I rode him on the couch, slow and deep, grinding my clit against him. His hands were all over my tits, squeezing and pinching. I came so hard I had to bite his shoulder to stay quiet.

He flipped me onto my back and fucked me missionary again, this time with my legs over his shoulders. He went so deep I felt him in my stomach. When he came, he stayed inside me for a long time, kissing me softly.

“I can’t get enough of you,” he said.

“Me neither,” I whispered.

We kept going like this. Sneaking around. Fucking whenever we could. Sometimes quick and desperate. Sometimes long nights when my brother was away.

I felt guilty sometimes. He was my brother’s friend. But the guilt only made the sex better. The forbidden part turned me on more than anything.

I started wearing sexier clothes when I knew he was coming. Shorter shorts. Tops that showed my cleavage. He would text me what he wanted to do to me before he even arrived.

“I’m going to fuck your throat tonight.”

And he did. On his knees in my room, I sucked him until tears ran down my face. He held my head and fucked my mouth, then came down my throat. I swallowed every drop.

Another time he bent me over the kitchen table again, but this time he spanked me while he fucked me. The slaps echoed. My ass was red. I loved it.

Our relationship became pure lust. No dates. No romance. Just raw fucking. He would message me “come outside” and fuck me in his car in the driveway while my brother was home.

I became addicted to the feeling of him inside me. The way he stretched me. The way he groaned my name when he came. The way his cum felt leaking out of me afterwards.

One day my brother almost caught us. He walked in while his friend had me against the wall in the hallway, my legs wrapped around him, his cock deep inside. We froze. My brother went to the bathroom without noticing. We finished fast and quiet, hearts pounding.

The danger made me cum even harder.

I don’t know how long this will last. But right now, I don’t want it to stop. Every time he looks at me across the room when my brother is there, I get wet. I know what he’s thinking. I know what he’ll do to me later.

Being fucked by my brother’s friend changed everything. It made me feel alive. Dirty. Desired. And I can’t get enough.