I swear to god this is all true. Some of it's a little mixed up because it happened so fast, but here's what happened as best as I can remember it.
My name's Daniel. I grew up in a farming town in Illinois that you've never heard of. This happened when I was 18 and my sister was 19.
My sister Cassie and I were really close growing up. We got into our share of fights, but we always made up and kept being friends. My dad had a bad relationship with his brother growing up, and he made it his mission to make sure me and Cassie got along.
My parents went out one night to have dinner with the neighbors. We were old enough to take care of ourselves, so I made dinner and we settled into a quiet night. We were both pretty into video games and so after dinner she sat down to play something on our xbox in the living room. I took a seat on the couch next to her to watch. She played and I just watched, and we started talking about whatever came up. First about the game. She was getting pretty pissed because she kept dying at this one part, and I was laughing at her.
"Will you shut up?" she said.
"Nope," I said, still laughing.
"Fuck you," she said as she died in the same spot for the thirtieth time. "With a ten inch dildo."
I laughed hard.
"You'd know." I blurted.
I know I shouldn't do stuff like this, but I always liked to snoop around the house, and one day when my sister was out I found a purple dildo in her drawer. Probably not ten inches, but you get the idea. Up until that point the words 'sex' and 'sister' had never been in the same sentence, but there it was, and I knew where it had been. I felt a familiar twitch in my pants, but I got grossed out that I wasn't grossed out by it.
She was silent for a second, then paused, and put down the controller. Her face was a little red.
"What do you mean?"
"Nothing."
"Have you been going through my fucking stuff?"
"What? No! I was just kidding," I said.
"You went through my stuff, you asshole."
She smacked my arm, and turned away, pretty pissed off.
"Okay, yeah, I did go through your stuff, but I wasn't expecting to find anything."
"Then why'd you go through my beside drawer? What did you think you were going to find?"
"I don't know! Look, I'm sorry. I was just curious."
"Well, now you know," she said, "that your sister has a dildo. Proud of yourself?"
A little, I thought to myself. The conversation was turning me on a little. I found my mind drifting to the thought of my sister saying she was going to sleep at night, turning off the lights and climbing into bed, slowly and quietly opening her drawer and taking the dildo out. I had a blurry image of her sliding her pajama bottoms down, but I couldn't picture her naked. I bet her cheeks were flushed like they were now.
"Not like I don't have anything on you though," she said.
"Huh?"
"What, you think I haven't heard you jacking off? I hear your bed frame hitting the wall every time you do it, dumb ass."
Our rooms were right next to each other. Shit. Now I was embarrassed, really embarrassed, and I had a weird pit in my stomach. She let out a quick giggle. Everything was out in the open now.
"Can I tell you a secret?" she asked.
I nodded, now I was really nervous.
"Sometimes it makes me hot—to hear you getting off."
We were both beet red now and she picked up the controller and started playing again. I think we were both ready to forget this conversation ever happened, but I still had the butterflies in my stomach, a kind of excitement, and the thought of a girl listening to me getting off was turning me on, hard. I knew she was my sister and all, but still.
"Did you ever think of doing it together?" I blurted out. My heart started pounding. I couldn't believe I'd said it. I could look at her in the eyes.
"Uh-huh," she said, not looking at me either.
I was hard as a rock—it was a complete zero to sixty. I was scared. I'd never been with a girl before, and this all felt so forbidden.
"Would you ever like, want to with me?" she asked hesitantly.
Before I could answer, I heard the front door opening, and my dad walked in, my mom in toe. They were talking about the neighbors, and greeted us as they came in. My boner went away a little too slowly, and I felt so guilty just for having the conversation that we had.
I went up to my room and paced endlessly, my heart pounding. My sister stayed downstairs and watched TV with our folks until they went to bed. Around 12:30 I heard her come up the stairs and go into her room. I had been in my room thinking about our conversation all night, and I had this incredible urge to go right then and there and talk to her about it. We talked about everything, and did everything together, but this was a whole new probably fucked up level. Teenage hormones won out, and I opened my door to the hallway. My Pjs were loose and my throbbing dick flopped around as I walked. I tried to pull my shirt down to cover it as I stood outside my sister's door in the dark hallway. I reached for the knob, but turned around. I got back to my room, shut the door, then opened it, went back into the hallway, and without even knocking, turned the knob and pushed open my sister's door. The lights were off and I could barley see.
"Hello?" said my sister groggily.
"Cass," I said, "It's me."
"What time is it?" she asked. "Who died?"