Damn it. I hate it when Jack talks about these things. It's always so complicated. Don't get me wrong, I don't exactly hate Jack. He's actually a really nice guy, but it's just that he can be an unbearable ass sometimes. But right now, as much as I hated to admit it, he wasn't entirely wrong.
"Well, joke's on you too." I said, trying to shut him up. "You said you wanted to fuck Anna even if you were her brother."
"But I'm not." Jack said, still laughing. "You are. So it's wouldn't be wrong if your sister and I fucked."
"I doubt Anna would want to fuck you even if you weren't her brother."
"She just might."
"What do you mean?"
"I asked out Anne yesterday for prom and she said yes."
After four years of relentless teasing, this was the equivalent of rubbing salt to my wounded heart. It was not the fact that Anna had a date that irritated me. I was actually happy for her, in that regard. But how could Anna say yes to such an obnoxious guy, like Jack? She could have literally any guy in our school and she agrees to go with the one guy who would probably rub it in my face everyday. Why would Anna do this to me? She wouldn't have done this to me if we were younger. I was closer, then, to Anna. As twins, we were nearly inseparatable. The both of us played together, slept in the same bed, and bathed together. We were each other's best friend. We gave each other advice and were there for each other whenever one of us was down. This all changed in middle school when our parents decided to separate me from Anne. I gradually grew more distant from her. By high school, Anna seemed like nothing more but a lost childhood memory to me.
Afterschool, by the time I got home, I was extremely upset. Jack really got to me this time. I went inside my room. I could only think about Jack and Anna. Vivid images of Jack sticking his cock inside Anna flashed through my mind. It should have been me. Why did I have to be Anna's brother? It was just not fair. Normally, I would stroke my cock to release some steam, but the thought of Anna's naked body getting fucked filled me with some primal lust. Masturbating was not enough to satisfy me if someone else got to fuck me sister. Disregarding caution, I decided that I was going to wait until Anna came home from water polo practice and fuck her. Being so desperately horny and angry, I could not think of anything else but Anna's plump soft ass against my crotch. I imagined Anna coming home with her curvy smooth body, wrapped in her tight water polo swimsuit. I had been to one or two of her games, so I knew what she looked like in her swimsuit. The outline of her small breasts were visible through her swim suit. Her long and toned legs would be in full display.
I heard the door to the house open and some footsteps. It had to be either Anna. My parents usually did not come home until 5 or 6 pm. I came out of my room to find Anna putting down her bags on to the table. The sweet sight of Anna was able to quill my frustration a little, but I was still just as horny though. Anna was wearing her usual grey mini wrap skirt, that did not cover more than just her upper thighs, along with her white tank top that covered her small, petite frame. I wanted to grab Anna by her thin cute hips and tear off her clothing before making love to her, but I knew if I did something so abrupt like that, it would frighten Anna and cause her to resist my advances. I could feel the tension building inside of me, ready to erupt. I was doing everything I could to control myself. I quickly went behind the kitchen island to not allow the bulge forming between my legs be seen.
"Ian, you look tensed." Anna remarked, noticing my body language. "Doing a bit too much homework lately?"
"...Yes" I lied. "No water polo practice?"
"Yeah. It got cancelled."
I nodded in response to her answer. Anna then turned around to go to her room. I was partly relieved that Anna did not talk to me longer to catch my erection, but I was also disappointed things did not escalate from there. As Anna walked away, I could see her round juicy ass through her skirt. I needed to fuck her. I was surprised at how long I was able to hold myself back. I could not wait any longer. I walked over to Anna and grabbed her pale bare arm. Instinctively, she turned around.
"Is something wrong?" She began.
But I wasn't listening to what Anna was saying. I simply stared at her slender wet lips move. All I could think about was how it would feel with her sweet lips around my cock. Without saying a word, I leaned in and kissed her lips. Anna just gasped breathing heavily. Her face instantly turned red.
"Ian,...we...What if Mom and Dad finds out?" She said, almost lost in her own words.
"They won't." I said as I kissed Anna again.
This time, I pressed my body against her body against the wall. I had finally done it. I had kissed my own sister. I did not care if someone was watching or what they thought. I wanted to fuck my sister. I pulled myself back to give myself and Anna some air to breathe and then to my surprise, Anna kissed me back with just as much passion and lust. Her nimble hands crawled through my body and took off my shirt. I grabbed Anna's ample hips and pressed her crotch against my crotch, feeling her gentle warmth.
"Let's go to my room." Anna whispered into my ear intentfully.
I grabbed Anna by both her legs and carried her little body to her room as our tongues explored each other's mouths. I lied down onto the bed with Anna on top, straddling me. While on top of me, she gave me a dirty grin before taking her tank top. She wore a grey bra, covering her small soft tits. I took off my shirt before I helped undo her bra, exposing her dark perky nipples, that contrasted greatly with her pale milky skin. I never really did notice that though Anna was quite thin, she was also quite toned. The outlines of her abs were present on her flat stomach. Anna moved down and undid my pants before throwing aside. My cock was already exposed, poking through the fly of my briefs. Anna tore my briefs off, leaving me completely naked and wrapped her little, nimble fingers around my excited member and slowly retracted my foreskin. Even with both hands, Anna's hands only, at most, covered two thirds of my cock. She spitted out a string of saliva onto my exposed head before spreading it out with her soft flexible tongue. She eyed me intentfully.
"You have a nice cock." Anna said sweetly, almost giggling.
Anna took my cock into her mouth. She engulfed about just half my cock. I could feel the tip of my head poking the back of her throat. Her mouth, being already small, felt tight around my engorged shafted. I leaned by head back, moaning as my sister bobbed her head up. I wanted Jack to this. I wanted him to see me fucking his prom date. I wanted him to see me fucking my sister's mouth. I didn't care about what he thought. I just wanted to see the shock on his face. This further heightened my lust. I grunted hard in pleasure like a wild animal. Anna got up and began undoing her skirt
