My sister screamed and moved frenetically while my dick, imprisoned in her holy tunnel, couldn’t take it anymore. I took my dick out of her pussy and let all my sperm fall into her belly. I tasted her pussy one more time, touched her boobs again while she caressed my hair. There I was, lying naked next to my sister. We had just had sex for the first time. But… How did it all begin?

My sister and I had been living together for four years, just the two of us since my parents had moved abroad. I was 19, and she was a year younger. All in all, we got along well and were very responsible in our daily duties, which contributed to a good atmosphere at home. At that moment, some things had started to change. For example, I could tell how guys were crazy about her, and I had had to put up with certain uncomfortable situations, like the noise she and an ex-boyfriend made whenever the guy stayed over. However, as her brother, I never interfered in her private life, as she respected mine.

One day, I was shaving my three-day beard, as I needed to get ready to go to class. She came into the bathroom and told me she needed to have a shower because she was late for classes. I said I was about to finish shaving, so she would need to wait just a couple of minutes. She told me to go out, but I just continued focusing on my razor.

She gave me a groan, and through the mirror, I saw how she took off her t-shirt, letting me see her big boobs for the first time. I was stunned. Then, she kind of knelt down trying to remove her panties. I turned around and saw her completely naked.

“What are you doing?” I asked, surprised by her sudden action.

“I need to take a shower!” my sister said.

She got into the shower and let the water run. As our shower has glass doors, I could see her firm nude body getting wet. I thought, Well, I gotta finish shaving, go to my room, and wait for my turn to shower. I tried not to look at her anymore, but I just couldn’t help thinking about her being there totally nude.

I put the razor down, took my boxers off, which were the only thing I was wearing, and got into the shower. She looked at me and ironically said, “Wow.” I got behind her and saw her nice round ass. She grabbed a bar of soap, looked at me, and said, “Do you want to clean me?” I was just speechless.

I took the bar and started to soap her arms, her back, and her shoulders while I tried to peek at her tits. I moved my hands towards her waist, then her legs, her feet, which implied kneeling down. Then, I looked up and saw her shaved pussy. I felt like eating it, but I restrained my desires. I put my hands behind her body and soaped her ass. First, I rubbed her buttocks, and then I moved inside to clean her anus. She sighed. My dick was already erect, and of course, my sister had noticed that.

“You haven’t cleaned this,” she said while pointing at her pussy.

I moved my hand and put the soap on her vagina as gently as I could. At that moment, she started breathing faster. Then, I let the water remove the soap, and I leaned forward to touch her pussy with my tongue. She grabbed my head as if she were inviting me to eat it.

I played with her hole and tried to insert my tongue as deep as I could. I also rubbed her lips to try to satisfy her as much as possible. Then, I used my right index finger and put it inside. I could hear a louder moan this time. I fingered her for a while, and at the same time, I lifted my left hand to touch her boobs. They felt so good, so round and firm, and her erect nipples made me feel like fucking her.

I stood up and looked at her. She grabbed my cock and rubbed it with her right hand while her left one explored my body. She touched my back, legs, my ass, and then she ended up touching my balls.

“Do you want to be inside?” she asked me.

“Yeah, so much.” I replied, totally aroused.

She turned around and faced one of the walls while I got behind and made her bend. I moved her cheeks and put my dick close to her pussy. She took my erect cock and helped it get in. As my cock got inside, my sister moaned more and more. It took me some seconds to be completely inside.

I held her ass to help myself move. I did it slowly first. Meanwhile, I tried to take advantage of the moment to explore my sister’s body. I touched her boobs, her thighs, her ass, and then her tits again. I made them bounce and then got hold of her nipples and pressed them.

I was now moving faster, and my sister seemed to be enjoying the moment. At some point, she moved her hands and touched my balls. That movement made me feel like coming, but I got to resist. I banged her faster and faster while the water fell under our naked bodies. Suddenly, she told me to stop. She turned off the tap and told me to go to her bedroom. She held my hand and led the way.  

We got to her bedroom and jumped into her bed. She made me lie down and got on top of me. She put my cock inside her pussy again. She moved so well, and the sight of her big naked boobs made my cock harder. I brought her back towards me so that I could put her boobs in my mouth. I licked them and touched them while a sharp ecstasy went down my body. At some point, she started to move very quickly, and I felt like coming again, so I had to stop her.

I told her to lie down. I rubbed her pussy with my thumb, and she moved as if she was coming too. I did it a couple of times more and then penetrated her again. I moved faster while she held my ass and kind of pushed it towards her cunt. Our eyes met, and our lips touched each other for the first time. I was kissing my sister. That felt weird, but at the same time, it felt good. I kept on banging her. At some point, I decreased the speed, but she asked me to continue.

“Please… I’m coming,” she pleaded.

I kept on fucking her, and this time she screamed and moaned louder. I moved quickly and was about to give up when she exploded in a way that was new to me. She moved and roared, and I just couldn’t hold it. I took out my cock and let all the sperm wash my sister’s belly.

I couldn’t believe what we had done. She was my sister, and I guess what had just happened was wrong. However, at that moment what really mattered was that we had made each other happy. That day was just the beginning of a strange relationship with my sister, something that lasted for a couple of years until we understood it just couldn’t go on.