A Sister's Seduction

Hi, my name is Mark, I'm twenty-one, and what I'm about to tell you could literally ruin me and my sister's lives, but I can't keep it held in anymore, I have to tell someone about our story.

It all started about six months after my sister, Danielle, turned eighteen. I was nineteen at the time, so it's not like this was a long time ago or anything.

I should say that I'd never really thought of my sister sexually, at the time everything happened. That all developed because of her...

It was early summer, but it was already one of the hottest months on record for our area, so you can imagine that none of us at home wanted to wear anything heavy. We didn't have an air conditioner, for numerous reasons, but we did have plenty of box-fans. Typically, I'd wear some light gym shorts, and a muscle shirt, to stay cool, and Danielle would wear something similar.

One day, I was in our living room, watching some TV, the fans were on max, and the windows were all open, giving a nice breeze that helped keep it close to about ninety degrees, instead of the near-hundred outside. Danielle walked in, wearing some cloth shorts and a bikini top, which only showed off her C-Size tits. It wasn't that I looked at her in that way, at the time, but I'm a guy, so I can't help but at least notice a nice pair of boobs, even if they were my sister's.

"Hey!" she said as she sat on the couch, next to me.

"Hey," I said. I wasn't really too enthusiastic about her crowding me, as hot as it was, I didn't need body heat that close to me.

"What'cha watchin'?" she asked me.

"Something called 'Criminal Authority'. Not even that good."

"Can I ask you something? Like, something sexual?"

"Yeah, sure sis. What's up?" I looked over at her, giving her my full attention.

"What turns you on... as a guy?" she asked.

"What do you mean?" I said.

"I mean, do you like tits, pussy, ass... what?" Her posture changed to favor a more relaxed, even flirty, nature.

"All of them, on some level, I guess," I answered honestly. There was no point in lying about it, and Danielle and I have always been comfortable with each other.

"Okay, what about hair color?"

"You're gettin' pretty specific, Dani," I laughed.

"Yeah, well..." she smiled, "I need a basic idea of what guys like."

"Guys are all different, you know," I remarked.

"Just answer the question," she laughed.

"Honest answer?" I gave her a serious look.

"Duh!"

"Short, bright, blonde hair. Like, just past the ears, not quite shoulder-length."

"Like, my current color blonde?" she asked. Hers was a light blonde, but she had long hair.

"Yeah, actually," I said.

"M'kay, thanks," she said as she leapt from the couch and took off toward the stairs.

"Hey!" I called out to her, "What was all that about, anyway?"

"I'll tell you later," she called back, not skipping a beat with jogging up the stairs, her tits bouncing slightly with each step.

I didn't think much of it, so I simply rolled my eyes and went back to watching TV.

The next day, I decided to play some video games, and like the day before, it was blistering hot in the house. I had my usual on, and was situated in the living room, which was the coolest room in the house, since that's where most of the air flow was. Out comes Danielle in shorts that barely covered her ass, and a tank top.

"Hey," she said, "um, can I watch?"

"You want to watch me play video games?" I asked, unconvinced.

"M-yeah," she said innocently.

"Sure, if you want." I said.

She sat down next to me and watched as I played. In the corner of my eye, I could see sweat beads on her breasts, but her shirt was perfectly dry, which told me she had just put those clothes on.

I kept playing the game, my eyes fixed again on the screen. At a jump-scare point of the horror game I was playing, Danielle suddenly jumped and placed her hand on my leg, near my crotch. I got hard, just from the fact that her hand was there. Instead of removing it when things calmed down, she kept it there, seemingly transfixed on the game as I played. I managed to glance at her from the corner of my eye a few times to see if she even noticed where her hand was, but there was no sign that she did.

After a few more minutes, I heard the back door open, causing Danielle to quickly pull her hand from my leg, and our dad yell that he was home.

"Hi, daddy!" said Danielle. She acted as though nothing happened at all.

"Hey baby girl! Is your mom home yet?" asked dad.

"No, she went to pick up some Chinese," said Danielle.

"Okay, I'll be in my study," said dad. He quickly made his way past the doorway, toward the second stairway, and I heard him go upstairs.

About a half hour later, our mom got home with the food. We never ate together as a family, we were about as dysfunctional as we could be, but I didn't complain about that fact. Most of the time, I'd just eat in my room while watching a movie or TV show. This particular night was no exception to that rule, and for the rest of the night, I stayed in my room.

The next day, I woke up and got dressed in similar clothing as the day before. It wasn't any cooler, and I had little tolerance for heat. As I left my room and passed Danielle's, I happened to glance in through the cracked-open door to see her topless, and brushing her hair while looking in the mirror of her vanity desk. I stopped and watched for a few minutes, in complete awe of her tits. She finally stopped brushing her hair, and moved in a way that startled me from my daze. I moved on past her door so I wouldn't be seen.

I made my way downstairs and into the kitchen to get some coffee made. Mom and dad had already gone to work by this time and were long gone, something I was usually glad for, because I didn't like catching them in the mornings. It was always in the morning when they'd tell me to do something around the house.

After I made my coffee and went back to my room, which I normally did as part of my morning routine, I heard a knock on my door.

"Come in," I said. I was sitting at my desk, looking on my computer as the door opened, and Danielle came in, wearing her shorts and a bikini top.

"Hey, um, my phone's stuck on my gallery, can you fix it for me?" she asked.

"Yeah, sure, let me see it," I said.

"Um, just letting you know, you're gonna see something when you turn on the screen," she said.

"I should hope so, that's what the screen's for, Dani," I joked. She giggled, handing me the phone.

"No, I mean..."

I didn't let her finish before I turned on the screen, and on that screen was a full-frontal nude pic of her.

"Whoa!" I said.

"Yeah," she said, wrinkling her nose, "pretty gross, seeing me naked, huh?"

"Um... I guess because you're my sister, but for real, Dani, you are just... wow!" I said. I swiped the screen to cycle it, bringing up even more nudes of her. "And there's more... okay, let me see if I can close the gallery, since you said it was stuck on it." I closed it and showed her the screen, pointing out that it's fine.

"That's so weird," she laughed, "it must've just been stuck until I brought it in here. Thanks anyway."

"No problem, sis," I said, going back to my coffee and computer.

"Sorry about you having to see those pics," she said.

"Nah, it's fine, Dani. Seriously, if it doesn't bother you, then it doesn't bother me," I reassured her. She simply smiled at me, and nodded as she left my room, closing the door. Immediately afterward, she opened it again.

"Hey, um, I was hoping you'd watch a movie with me, today," she said.

"What movie is that?" I asked.

"Causality 3," she said.

"Yeah, I've been wanting to see it, I mean, it's been out since '09," I said.

"Good!" she said cheerfully. "How about right now?"

"Yeah, just give me a few minutes, sis," I said.

"I'll be in the living room, getting it ready," she said. She left again, closing the door. I finished up what I was doing on my computer, then grabbed my coffee and went out to the living room to join her.

She'd already put the movie in and had the DVD on pause by the time I'd gotten there. I could hear her in the kitchen, messing with some kind of wrapper, which I later found out to be microwaveable popcorn. I sat on the couch and finished my coffee while Danielle kept working in the kitchen.

"Hey," I heard her call to me, "do you want a soda?"

"Yeah, I just finished my coffee, so I can get it," I said, standing up. I went into the kitchen and set my coffee cup near the sink to wash later, then grabbed a soda from the fridge. The popcorn finished a couple minutes later. Dani grabbed it, put it in a large bowl, and we both made our way into the living room, sitting on the couch.

As we watched the movie, she scooted closer to me, leaning her head on my shoulder. I couldn't help but let my gaze wander a bit, having a plain view of her perfect tits. I had to stop myself from getting too mesmerized by them, as I was starting to get hard, and wearing only gym shorts, it would've been extremely obvious and awkward.

Toward the end of the movie, a scene came on where the main character's sister professed her desires for him.

"Wow!" said Danielle, "That would have to be the shock of a lifetime..."

"Yeah, I guess so," I commented with a small laugh. The movie ended soon afterward, it didn't have a happy ending, though.

"You know..." said Danielle, "I kinda feel sorry for her."

"Why? She was a total psycho. I mean, she killed all his potential girlfriends, and that's pretty fucking crazy, sis," I said.

"Yeah, obviously going on a killing spree through time in totally psycho, but if she'd just... I don't know... told her brother how she felt, maybe the two could've... you know... hooked up," said Danielle.

I looked at her with a look of confusion to see her blushing, and she burst out laughing after seeing my expression.

"What?" she laughed, "Don't give me that look. Don't you think in the movie, that could've happened?"

"I guess," I laughed.

"So, like, what do you think of the idea?" she asked.

"What?" I said as I finished my second soda.

"Incest. Like, what are your thoughts about it?" she said, "It's a thing, you know, probably a fuck-ton more common than anyone wants to admit."

"Doesn't bother me if it's between two adults and they've come to the decision themselves," I said. "If it's two adults, and both consent to the act, then who am I to tell them they can't do it?"

"I'm glad you said that. I agree," she said. She got up and put the DVD back in its case and set it aside. "Fuck, it's so hot in here..." she mumbled.

"Yeah, it's supposed to be even worse tomorrow," I said. Danielle came back to the couch and used a hair tie to put her hair up.

"It's so hot, I could go naked, and still be uncomfortable," she said.

"Yeah," I laughed, "because then I'd see you naked, and the neighbors would, too."

"You already saw me naked, remember?" she teased me.

"Oh yeah, I forgot," I lied. Of course, I didn't forget. What guy could forget seeing nudie pics of his sister, especially when said sister is a total babe?

"Yeah, right!" she laughed. I laughed with her as she repositioned herself, giving me a short glance up her shorts. Not a lot of reveal, but enough that I could tell she wasn't wearing any panties.

"So, what do you wanna do?" I asked her.

"How about some 'Truth or Dare'?" she said.

"Um, okay, sure," I said, "but what do we do if one of us refuses to answer truth, or do a dare?"

"Then," smiled Danielle, "a different truth or dare is given, and that one has to be done, no matter what."

"Deal," I said.

"Truth or Dare?" she asked.

"Truth," I said.

"What's your honest opinion of those pics you saw, of me?" She gave me a look of pure curiosity, which only made me laugh a little.

"They were very hot," I said. "Truth or Dare?"

"Truth," she said, smiling at my comment.

"Is it just me, or are you not wearing panties?" I said, more to tease her about it, than I was curious.

"Yeah, I'm not," she said. "Actually, I'm surprised you noticed. Truth or Dare?"

"Dare," I said.

"I dare you to take off your shirt," she said.

"Pft! Easy, and really lame, if I may say so," I said as I removed my shirt. It wasn't as if that was remotely risque to me, and I probably would've done it at some point anyway, given how hot it was.

She looked at me like she was checking me out for a minute, before I interrupted her by asking her which one she chose; Truth or Dare.

"Dare," she said.

"Even with the windows open and we're in full view, take that bikini top off," I said.

She gaped her mouth open and let out a 'Ha!', clearly surprised at my request.

"Wow, you're not pulling any punches anymore, are you?" she said as she removed the garment and set it aside. "Game on, bro. Truth or Dare?"

"Dare."

"I dare you to kiss me," she said. "And I don't mean a brotherly kiss, I mean a passionate, fuck-me-right-now type kiss, full tongue, right here and now."

I knew she was serious, and I also knew how she played the game. If I didn't do it, she'd just come up with something even more serious or embarrassing. But seeing her in only her shorts, knowing she wasn't wearing any panties, and seeing her bare tits in front of me, all of this culminated to a feeling that I felt ashamed to accept at the time; I was attracted to her.

She scooted closer to me again, until we were close enough for the kiss. I was nervous, and it showed, but she was calm, even slightly eager, to some extent.

"The neighbors... what if they see us?" I asked her.

"What if they do?" she smiled.

"They'll rat us out!" I whisper vehemently.

"So? It'd be their word against ours, and it's not like they'd be willing to video tape into our private home, it's a crime," she pointed out.

There was some logic to what she said, but before I could think about it any more than that, she kissed me. I was in shock, but returned the kiss to complete the dare. I expected her to pull away the second I started reciprocating, but she didn't. Her hand made it's way to my shorts, sliding her hand inside them and grabbing my hard dick. I broke our kiss and grabbed her wrist.

"Dani, we can't take it this far," I said to her.

"Yes we can, baby, please let us have this. I want you so bad," she basically moaned.

"But, you're my sister..." I managed to get out between her new kisses.

"Yeah, so?" she said. She started jerking me off while she worked to pull down my shorts. I let go of her wrist, realizing there was no pulling her hand from me.

"So... it's incest!" I exclaimed quietly.

"That just makes it special," she said. Before it could get any further, we heard a car door in the garage, sending us scrambling to cover ourselves again.

"Shit!" said Danielle, as she grabbed her bikini top, and bolted up the stairs to her room. Similarly, I grabbed my shirt, putting it on, and going up to mine as well, since I now had an obvious boner, and one of our parents were about to burst through the door.

I closed my door and laid on my bed, thinking about what just happened. My heart raced with both excitement, and guilt as I jerked off to alleviate my hard-on. I found myself fantasizing about Danielle, seeing her bare tits, feeling her hand choke my cock as she'd tried to jerk me off... it was so wrong, but I couldn't help but cum while thinking about her doing these things, and more.

About a half hour passed by before I heard whoever had come home, leave again. It was at this point, when I heard a knock on my door.

"Come in," I said.

Danielle walked in and closed the door behind her. She was still wearing her shorts and bikini top, and had a solemn look on her face.

"Look," she said, "I'm sorry I pushed you into kissing me, and for grabbing your dick, earlier. I just thought that I could be open with you about my feelings, and I guess I thought you'd be open the idea of us hooking up. When I asked you what you thought about incest, I thought that you being open to two adults getting involved, meant that I had a shot."

"Dani," I interrupted her, "it's okay. To be honest, it was a lot to take in all at once. You weren't exactly subtle and slow, you know."

"So..." she said, "what are you saying?"

"I'm saying, let's talk about those feelings you have," I said. I sat up and patted the bed beside me, beckoning her to sit with me, so she did.

"I was afraid that you'd reject me completely," she said.

"No," I said, "I just wasn't expecting my sis to come onto me. Plus, to be honest, I hadn't really thought of you in that way before recently."

"Yeah..." she sighed.

"Dani... how long have you had these feelings?" I asked her.

"About you, or about incest in general?" she asked.

"Both... either, I don't know."

"Well, Mark... I've had a crush on you for a few years now," she said.

"What started it?" I asked.

"You're a hunk!" she laughed. "But seriously, I don't think any one thing started my feelings for you, they just happened, like everyone else who falls in love with someone they meet. I remember one time, you brought home a girl, and you two were fucking in your room while mom and dad weren't home yet. I got so fucking jealous..."

"Wait, a few years ago? When you started acting out and getting in trouble?" I asked.

"Yeah," she said.

"You were jealous that I was with a girl?"

"Not that you were with a girl, Mark, but the fact that the girl wasn't me..." she said. "After that, I started having sex because I wanted to bring home a guy so you'd have to hear me having a good time... never happened."

"Wow," I muttered.

"Yeah..." she said. "Lately, I've thought about it even more, and I decided to test you... to see how you'd react to the concept of incest, of me..."

"So your phone‒" I said.

"Was just fine," she laughed. "I wanted to see how you'd react to seeing me naked, and that seemed like an easy way to do it... I took those pics literally minutes before coming to your door."

"Look, Dani, I meant what I said about incest... I don't really have a problem with two related people hooking up, as long as both are consenting adults," I said.

"So... how do you feel about you and me?" she asked.

I sighed, knowing I didn't have an answer for her, but I looked into her eyes and smiled at her, tenderly.

"Let's find out," I said.

"You mean, you're willing to give us a try?" she asked.

I simply nodded, but it was as if I'd given her the world, by her reaction. Her eyes lit up, she smiled at me, and our lips pressed together in a passionate embrace.

After our conversation, we went back down the living room to watch some TV, and to talk about our situation. There was talk about sex, more than anything else, something she obviously wanted pretty badly.

"I just think it would be really special," she said. "I don't really feel like we'd need to worry about it."

"Yeah, but if we fuck, I'd have to pull out or something," I said, "it just wouldn't be a good idea to start fucking without a plan, you know? Unless we got some condoms, then‒"

"Fuck that!" she scoffed, "I can't stand the way condoms feel... too fake, not personal enough."

"What about the pill?" I asked.

"They make me sick..." she said, wrinkling her nose.

"Okay, then pulling out it is," I said.

"I guess," she replied with a disappointed tone. She started playing with my hair at the back of my neck, as we stared into each other's eyes.

"It's the smart thing to do," I smile.

"So, like, you wouldn't mind having sex with your younger sis?" she teased me.

"You make a strong case in favor of doing so," I laughed a bit.

"How about right now?" she smiled.

"What if the neighbors see us?" I said.

"What are they gonna do, call the cops?" she laughed.

"Yeah, probably. Or at least tell mom and dad."