Oh Mandy
Mandy is my kid sister. She was 22 at the time the story began, I was two years older. She's a beautiful girl, especially her beautiful face and shoulder-length light brown almost blonde hair. She was 5'2" and slender, her breasts are small but, judging by how she looked in a string bikini, quite perky. Her hips are narrow. Most guys don't call her sexy, I think they are making a mistake. I'd never thought of her that way, but she's my sister.
I'm Tom, about 5'10" average build, not ugly but no one would call me handsome. I'm a pretty nerdy guy. Not date material to most women--but none that gave me a try found me unsatisfying. Mandy had the same problem. Some would be glad to have sex with her but wanted anything long term to be with someone better looking (which half the time really meant bigger tits).
We had moved out of our parent's house about two years ago. Our parents weren't well off enough to give much financial help, we were mostly on our own, though we often helped one another when money was tighter than usual for one of us. We really couldn't afford our own apartments, even cheap studios.
We got a one-bedroom unfurnished apartment together. Sharing the rent, utilities, and food made our budget more manageable. We planned to change arrangements when we were making more money or one of us got married. We had entry-level jobs, and both of us dated but not extensively. Our parents had been able to afford a nice couch that could be made into a bed for the living room and a low-end but comfortable double bed for the bedroom. We brought the rest of our furniture from our old rooms, except for the small dining table which we bought. Mandy took the bedroom, and I slept on the folding bed. My choice, girls need more privacy.
A somewhat peculiar arrangement for brother and sister, but we had gotten along well since childhood. Mandy was anything but the usual annoying kid sister. She was fun to be around, and I always felt very protective of her. I'm sure we would have been friends if we weren't related. Maybe more by then. Neither of us had a friend that would have been a suitable roommate, and we were leery of rooming with strangers. The beds were chosen because our parents were savvy enough to know we weren't virgins, might have overnight guests for sexual purposes, and a twin bed sometimes isn't roomy enough.
We both would continue sporadically dating. But on the fateful night, we were both having dry spells. We watched a movie that evening, sitting on the couch. It was billed as a historical romance, but the "love scenes" were more like porn. I was getting a bit aroused, and quickly covered my lap with a pillow.
Mandy said "Tom, you don't need to cover up. I've seen cocks before. Take it out if you like. I'm getting a bit aroused myself. I removed the pillow but left my dick stretching my jeans. She said, "that must be uncomfortable" and gently reached for my fly.
I protested, "Mandy, don't do this. I can take care of it in the bathroom if you want to watch the rest of the movie. You're my sister."
She answered, "Tom, you've been the best brother a girl could ask for as long as I've been alive. I'm not sure why I want to do this for you, but I really want to do it. Please let me, you really need it." I was getting too aroused to protest. This was so wrong, but she was right, I needed it.
She unzipped me and took out my rapidly hardening dick and began gently stroking. "Damn, bro. I didn't know you had a monster like that" as my cock sprang to its full eight inches in all its glorious thickness. She said "God I wish I could feel that in me, but I'll settle for jerking you off. It will work better if you get out of those jeans. Would you like to see me?"
I answered, "Mandy, I've seen most of you in your string bikini, but I'm ashamed to say I would," as I slipped out of my jeans, and went ahead and removed the rest of my clothes. Mandy stripped slowly. I liked what I'd never seen before, as well as what I had. Her pink nipples were quite erect and looked most tasty. Her pussy was shaved and had just a tuft of fuzz. It was small as befit her petite frame. It looked even tastier.
God, I was thinking about going down on my own sister. But my cock was a titanium rod by now. She grasped my cock and began stroking, with slow strokes that began short but gradually increase the length of then until she was stroking me base to tip. No woman had done that to me so well. My balls were boiling, ready to come. She massaged them with her other hand, then squeezed rather hard. That did the job.
I barely had time to yell "Sis, I'm coming!" before I blew a huge load. As I spoke, she moved toward my cock and caught the bulk of it in her mouth. I said, "oh, Mandy, you really gave without taking. Never came like that, thank you so much."
She answered, "my pleasure and it wasn't really without taking. It turned me on something fierce: you can see my cunt dripping. I need to care of myself now--I really need to come."
"Mandy, I can't let you do that. Let me." She nodded agreement and opened her legs wide. I began stroking her labia.
She said, "Tom, can you suck my itty-bitty titties while you do that, they're very sensitive and I love the feeling."
I took the left one in my mouth as I put my fingers in her cunt and began stroking her clit. As I changed breasts I said "your itty-bitty titties are beautiful and delicious. Any man who criticizes them is a damn fool." She came hard as I simultaneously stroked her clit and her g-spot. She squirted, which I'd never seen outside porn.
"Damn, Tom. Nobody else ever got me off like that. I've never done it masturbating either." She was a mess. Her hair was in disarray, her body covered in sweat, my come running down her face and splashing on her tits. I'd never seen her so beautiful.
"Mandy, that was incredible, and I loved doing it. But you know we can't do it again, ever."
Her answer, "I know we can't...but we're going to, aren't we?
I said "Well, yes. I know it's wrong but it's just too damned good." As the movie ended, we went to bed. I got so excited thinking about it that I needed to jerk off and come again. The next morning, she admitted she had done the same.
As we got into the car and left for work, she asked, "can you bring something hard core for tonight? I need more and I want to suck your cock. You're welcome to go down on me as well."
I did as she suggested and showed her the videos I rented when I picked her up from work. "Looks good bro," she said. We grabbed a quick bite and got home. There was no doubt or hesitancy about what was going to happen. We stripped and as she chose a video and put it in the player, I pulled out the bed and sat down on it waiting for her.
Mandy soon joined me. As we got aroused, she grasped my dick and started stroking, preparing to suck me. I asked, "Sis do you like 69?"
"Bro, it's my favorite number. Let me get in position." It was the most exquisite experience I'd had, with my tongue attacking her clit as her tongue bathed my cock. We came together.
She didn't take my cock out of her mouth. Lord, it hurt so good. It got hard again in about three minutes. Meanwhile, I continued licking her clit. I came again and Mandy got off four times. We kissed and enjoyed swapping juices, then went to sleep in each other's arms. We were to repeat the performance for the next five nights. We hadn't fucked, but both of us of fanaticized about it.
Mandy said, "we can't keep on like this. I want your cock in me so bad, and I know that you want to give it to me. Maybe we can safely indulge our urges occasionally when we're particularly hard up but doing it every night is just too intense."
"Mandy, I agree. I swear if you weren't my sister, I'd be on my knee proposing to you. We need to date other people, and I don't know about you, but I'm feeling much more confident. Thank you for that."
"Tom, if you weren't my brother, I'd be accepting. Is incest legal in the Netherlands? --it sure isn't here in the USA. Best sex I've ever had. If women aren't standing in line for you, they're dumb bitches. And thank you, bro."
We continued living together and as our incomes increased, we went on some non-sexual brother-sister dates. Our sex was mostly with our other dates, but when one of us came home frustrated from a bad date, the other was happy to supply the orgasms needed. We really did love one another more than ourselves. I never quite had that feeling for anyone else, even with Annie, who I eventually married.
Annie and I were quite compatible non-sexually, but her sexual tastes were quite vanilla. She liked fucking, and enjoyed different position, but sucking my cock was out of the question. She was grossed out when I suggested eating her pussy. When I suggested anal, she backhanded me.
At around the same time, Mandy met and married Malcolm, whose tastes were equally vanilla. He did condescend to let her suck his cock. When she asked her to eat her, he said, "I'm not putting my tongue there, it's dirty."
She answered, "it's clean enough for you to fuck with your tiny dick. Which I'm not sucking anymore."
On our next brother-sister date, both of our spouses were out of town on business in different cities. We joked about how perfect they'd be for each other if only he had a bigger dick.
Mandy said "at least yours has a good pussy when she lets you use it. Stupid bitch not letting you go down on her doesn't know what she's missing. You are an artist, bro. I swear you could write your name on my clit with your tongue. I doubt Malcolm could if he tried."
I countered with "Annie is quite intelligent... outside the bedroom. I guess that makes her even dumber in it."
"That's Malcolm up and down. Maybe we should have tried our luck in the Netherlands. Since my ball and chain is out of town, let's go to my place and help each other out. I've never tried anal, and I'm sure your monster cock will hurt me, but I bet it will pleasure me more. Tom, will you take my anal cherry? I've always wanted to try it. You're the only man I trust to be gentle enough."