Author's Note: This story contains fiction of an adult nature. It may contain themes involving Incest, under age sex, rape, bestiality, drugs or alcohol abuse. If these subjects make you uncomfortable please exit now. The story is meant for the entertainment of adults as defined by tour local government or society, if you are below this age please exit now. The author does not condone or encourage anyone to act in real life the way the characters depicted in this story act.

This story was written for Brian, a chat friend from Literotica, his passion was to fuck his sister when he was sixteen years old and she was twenty.

Khristi and Brian
by Isabella

Story Code: m/F, N/C, Incest

My sister was four years older than me, Khristi and I didn't really get on too well, from my earliest memories we were always trying to score points off of each other, because she was older she would often inflict pain on me, claiming that I had fallen or walked into something to explain my crying and cuts and bruises, well that all changed on her first vacation from college.

Mum had played a master stroke in getting Khristi to chose her college, it was an all girls school, now Khristi wasn't easy or a tramp or anything but she had gone through about a hundred boyfriends in her time at George Washington Memorial High School, she loved to dress up and each year her hemline rose by another inch, our parents assumed that she was still a virgin as she was about to graduate but I wasn't too sure. Mum sold Khristi on her choice of college by using reverse psychology, Khrists should have remembered that mother was one of the preeminent psychologists in our city.

Khristi was in the laundry room, which is just off the kitchen, mum was making coffee and dad was in the dining room, Mum made sure that her voice was loud enough for Khristi to hear but not overly so, or Khristi might have smelled a rat, "I do hope that Khristi doesn't chose that all girl college, I'm sure that they just pump out lesbian after lesbian, and having that army base right at the edge of campus is definitely not conducive for young women's education, all those horny young soldiers running wild!" At that point my mother rejoined our father in the dining room and they went back to reading through Khristi's collection of college prospectuses.

Khristi had submitted her application before she had a chance to fully verify the college's credentials, all she had time to do was use the computer and Google earth had clearly shown the school campus and had, well, let's say been unclear about what lay between the campus and the nearest town, Google Earth had a habit of 'hazing out' sensitive areas like military installations and sensitive government sites, the obscured map was all the proof she needed that there was a large Army camp on the school's doorstep and she was sold.

I actually missed my sister, missed the fighting, missed the arguments, missed not being able to get into the bathroom that we shared together. I missed the name calling even more, so long as mum and dad couldn't hear us we often called each other names like dildo jockey or cumslut, they were my favourite names for her, she would call me fag hag or bum bandit, not because I was gay or anything like it, I was, at sixteen, very handsome or in her words a 'pretty boy'.

She arrived late on the Friday night, she had taken the bus after her last lesson and that had taken over six hours to get her home, I didn't stop up to wait for her, it wasn't like we were friends or anything, just brother and sister.

Saturday morning, I woke at ten o'clock, there wasn't a sound in the house, four months of being alone in the east half of the building had made me careless, I walked into the 'Jack and Jill' bathroom that joined Khristi's room and mine, I needed a piss badly and as I had done for four months I walked into the bathroom in the nude, started to pee and then got the shock of my life, Khristi was in the bath, there were lots of bubbles so I didn't see much of her body but she had a great profile of my python as it streamed into the toilet bowl.

"You didn't lock the door, you know the rules, lock the fucking door if you are going to have a bath you cumslut!" Khristi just laughed, "Hey watch what you're doing, you piss all over the floor and you gotta clean it up!" I was really confused, now any boy will tell you that once you start to drain the python there ain't really no turning back, boy's gotta finish doing what a boy's doing, I just stood there, naked splashing the porcelain, Khristi would have gone mad at me if I had walked in the bathroom when she was in her nighty or in her bra and panties and she would scream abuse if I had wandered around in my boxers just four short months earlier, now, here she was, naked in the bath and I was naked peeing and she didn't say anything.

She didn't even make any comment as, before her very eyes, my cock grew to twice its length and double its thickness, my growing hard-on was even making it difficult to keep peeing, difficult to hold down so that it was still hitting the water and difficult as the nature of things were designed to stop men peeing while erect. She just lay there in the water, soaping her arms and neck as she watched me peeing, not a word, mind you, it was her fault, the rules were clear, use the bath, lock the door to the other bedroom, the only stronger rule was, 'For fuck sake remember to unlock the door to the other bedroom when you're finished!'

I kind of rushed things as much as I could, I had turned my back on my sister, a difficult manoeuvre in full flow but in full flow and with a rapidly stiffening cock it was almost impossible. Impossible and also in vein, the wall opposite the bath had a huge mirror on it, I could still see my sister and she could still see me, as soon as I managed to stop the flow I covered my rod with both hands and made a run for the door, "Hey shithead, come back here and flush, I don't want to sit here getting clean with the stench of your piss wafting out at me!" I started to stammer that I needed to get my dressing gown first, "Come on you faggot bastard, flush the fucking pan right now before I get out of this bath and push your head down and flush it myself!" I returned and flushed the toilet, Khristi was now sitting up, rubbing soapy hands all over her tits, I thought my balls were going to rupture, I couldn't believe that I was so turned on by my own sister, I felt totally disgusted with myself.

I tried to cover up and run again but was called back once more, "Wash tour fucking hands you dirty bastard!" Now I wouldn't usually do as my sister told me too, usually I'd see her in hell first but there was something about the moment, the confusion of the situation, I meekly returned and washed my hands at the sink as my sister rubbed her soapy hands over her breasts, over and over again.

As I washed my hands my erection deflated even though I could still see my sister rubbing her breasts, they looked massive, I had seen pictures of girls online, in books and films but seeing real tits, up close, wow! My sister was totally nonchalant about me being there naked now, she was ignoring me and just washing herself, I turned and my cock started to grow again, I wanted to hide it again but it looked like she wasn't even looking at me, she just lay there in the bath, washing her breasts over and over again, I slowly walked out of the room, looking over my shoulder as I went, at the door I was stopped in my tracks by Khristi's comment, not shouted, no anger in her voice, she spoke just like we were both real people instead of brother and sister, "Hay Brian, you've grown up quite nicely considering you being a faggot and all!" There was almost a smile in her voice as I closed the door between us and I thought to myself, "And my god, you've grown a lot in the last four months!"

I had hardly got back into my room when I was called by my mother, I had chores to do and she wasn't going to let me get out of them just because my sister was home from school, I slipped into sweats and ran down the stairs, I still had a residual boner from seeing my sister naked and had to hide it quickly from my mother, I didn't want every female member of my family to see my boner in one day.

I worked right up to lunch time, I was doing yard work, lol, yard work in December was worse than in summer, every week I pilled leaves up in the yard, then the wind would whip them up and spread them out again, my father wouldn't allow me to compost them in the composter as it killed the reaction and now I had to clean the light dusting of snow from every hard surface in both the front and back yards.

At the dinner table my dad was already on at Khristi, he had been trying to make a call on the phone for over an hour but Khristi had been ringing around all of her friends or the people that she thought were her friends, it was her first evening back home and she was trying to rustle up a date or a group of her girlfriends for a night out but she wasn't having much luck.

I had friends call for me after lunch and went out with them, we hung out by the river, we floated targets and threw rocks at them, we were a bunch of sixteen year old boys, all a great mess of hormones and acne well, Bobby Green had my share of acne, mine and two other boys, I liked hanging out with the gang because it meant that all the girls that passed looked at me.

I got home in time for dinner, Khristi was out, I asked my mother who she finally got to take her out but it turned out that she had gone out alone, planning to hunt down some of her friends at the local watering holes. I spent the evening on my play-station, alone in my room, at eleven o'clock I was about to turn in, the best score I had all evening was less than half that required to get on the scoreboard so I was very frustrated.

My room was in darkness, I don't know if I had fallen asleep and been woken or if I was still awake, when my bathroom door opened, Khristi walked in, the soft padding of her bare feet on my laminate flooring the only sound in the darkness, then a whispered, "What is it with this fucking shithole of a town, four hours I walked the main street and didn't see a single person that I knew!" I knew that it was Khristi from her voice but I wasn't sure that she actually realised that it was me she was talking too, she was being, well, 'Normal', I wasn't use to her talking to me like I was a regular person, she wouldn't usually talk to me like I was a friend, earlier in the bathroom was the first time she had spoken to me at normal volume, now here she was, god, sitting on my bed, whispering to me.

"I'm sorry that I embarrassed you earlier, did you manage to get rid of that thing before mum started busting your chops?" What the fuck? Was my sister asking me if I had 'spanked the monkey' or was I dreaming, "Well?" I managed to stammer out a no, I felt Khristi lift her weight off of my bed, she pulled my duvet down and reached under the covers before sitting back down.

I almost shit myself as I realised that Khristi was searching under the covers, in total darkness, for my cock, I felt soft fingers encircle my cock shaft, "I know that we are only brother and sister but I wouldn't like to think of a dog in the street getting 'blue balls' because of me and me not help it out of its pain!" And with that she started to pull my cock off, very gently, very smoothly, very expertly, inside it felt like hours before I disgraced myself but in reality it was less than two minutes. There was an awkward silence as Khristi searched my bedside table for the box of Kleenex that was always there, there were subtle movements as she wiped her hand and then threw the tissue in the bin, "I don't suppose that you have any condoms around here?" I shook my head before remembering it was dark and she wouldn't see me, "No!" "Pity!"

By morning I had managed to convince myself that it must have been all a dream but the tissue, missing the bin and sticking to the wall was proof of more. I pulled my dressing gown on, opened the bathroom door carefully, looking round to make sure that the bath was empty of anything like a sister, breathed a sigh of relief and, well, disappointment too, I walked to Khristi's door and started to throw the bolt when the door opened, she was there in her baby-doll nighty, she brushed me aside, didn't even say good morning or anything, she just waltzed over to the toilet, pulled down her panties and sat down.

The sound of my sister pissing was deafening, seeing her sitting there, beaver slightly on show made me spring to attention but fortunately, this time, I was covered by my towelling robe, then I realised that I was busting to pee and started to complain that I was in the room first, Khristi just opened her legs, "Come and use the toilet but if you go off aim I'll kill you!" there was no way I could piss now, my balls had pulled up and my heart had almost stopped beating, my cock was so full of blood that there was little to pump round the rest of my body.

I turned towards the sink, "Don't even think about that, I brush my teeth over that sink, come over here and pee through the gap!" "I can't do it now!" Khristi reached out and pulled the front of my dressing gown open, she giggled, then said, "I thought I took care of all that last night for you!" I watched as Khristi took a sheet of paper from the role and wiped between her legs, "Do your piss, wash your cock and come into my room after!" Khristi left me alone to piss and, well, wash my cock.

In Khristi's room, she told me that I had to get hold of some condoms because this was the last time she would be helping me out this way, and then she pulled the knot of the belt holding my dressing gown closed, she was sitting on her bed and I was standing up in front of her, standing up in both senses of the word. Khristi leaned forward, she was looking very closely at the tip of my cock as she massaged its shaft, I was almost falling down with the exertion of her masturbating me, massaging my cock, the pressure, the speed of her hand, all designed to bring me to the final point with as much speed and force as possible, when my balls finally exploded it was like a volcano erupting, I totally covered her face in cream, then she giggled again, "You always said that I was a cumslut didn't you, now fuck off while I go for a canter on my dildo!" I looked back from Khristi's bathroom door as I was about to pass through it, she had her hairbrush in her hand, her face was still plastered in my juice, it was running from her chin and dripping down onto her nighty covered tits, then she turned on her bed, lay down and brought her knees up and the hairbrush disappeared from view between her legs.

It was Sunday so there was no chance of me getting any condoms in our god fearing town, I could call in a favour or two from friends, most of my friends had condoms in their wallets from the age of about twelve or thirteen but if I asked for their condom there would be questions asked, questions like who did I need it for, in our small town everyone knew the girls who would put-out, and as such, no one ever admitted going within ten feet of them so I would just have to apologise if Khristi asked me if I had a condom again.

Nothing at all happened on Sunday, mum and dad were smothering Khristi, my mother asked if they ever had any trouble on campus from the guy's at the army camp, Khristi almost blew a fuse, "It's an all women's camp where they train women to be military police, I'm in Dyke's college all day and at night the roads are patrolled by other dykes in Humvies looking for women trying to escape into town to find men!" My mother did a great job in hiding her giggles, mother always knows best as they say.

I still had a week at school, so I was out of the house early in the morning and at night I was in tutor groups until late, I had set my sights on getting high SAT's so that I could chose my own college instead of having one forced on me because of my bad grades. Friday night arrived in a flash, Khristi went out looking for fun again and failed spectacularly again. I had managed to pick up a packet of Durex from an out of town store, most of the shop keepers in town knew my mum or dad and I was sure that if I bought Durex in town it would get back home faster than I would.

I was woken at one o'clock in the morning, to say it was a rude awakening was an understatement, I hadn't heard the bathroom door open, hadn't heard the padding of naked feet on laminate flooring, hadn't felt the bounce on my bed as my sister joined me, hadn't felt the cover being drawn back, the first I knew was feeling something warm and wet on my cock head. My sister had my sleepy cock in her mouth and was blowing it up, inflating it, waking both cock and master in one action. As soon as I was fully hard, Khristi slipped her mouth off of my cock and slid her body over mine, she impaled herself on my cock and started to ride me cowgirl style.

I was still sleepy but waking fast, as her face came close to mine I kissed her, "What the fuck, you little dick head, what are you playing at, it's disgusting, you trying to kiss me like that, I'm your sister for fuck sake!" There was a knock at my door, my mother asked me if I was OK, again I was on the point of making a huge brown stain on my bottom sheet, "No mum, I'm OK, just a little coughing fit, sorry for waking you!" My mother said it was OK, she asked again if I was sure that I was all right before walking down the passageway and back to her room.

"We didn't wake them!" Khristi hadn't stopped fucking me as I spoke with my mother and now she was at least whispering to me, "They were having their monthly fuck when I got in!" "You liar!" Khristi stopped fucking me for a moment and told me to listen carefully, there was a slow gentle squeaking of bedsprings, for the first time in my life I could hear my mother and father fucking, then Khristi started humping on top of me again, and for the first time in my life I was fucking a woman instead of my fist.

I started to get close to my climax, my breathing changed, I was gasping, "Don't you dare cum yet you fucking little faggot!" My excitement was quickly dashed, I went off the boil so quickly you would have thought that someone had dropped ice in my kettle. I was so pissed off that my sister was using me to get her rocks off and had just dropped me out of orbit that I got a little mad at her and let fly, "You fucking whore, you dirty fucking cum doll, tramp!" now I was shocked, Khristy calling me names had killed my ardour, me calling her names and swearing at her drove her on, she was making quite a lot of noise as she ran through chained climaxes, fortunately Khristi's orgasm coincided with our mothers, I didn't hear much of my mother's climax because our father turned the radio on in their room to drown her out, fortunately drowning out my sister as she rode my cock.

I started my climb up to my own orgasm again, as I was about to shoot Khristi leaped off of my cock and covered it again with her mouth and she sucked me hard until I fired off in her mouth. "Do you think you will be able to go again soon?" I had no idea, when I masturbated myself; as soon as I fired off I wiped and went to sleep. I had never felt the need to do a second take. "Do you think you shot anything in my cunt?" I suddenly realised that I had condoms but because of the way I was woken up I hadn't put one on. Khristi fondled, sucked and rubbed my cock for ten minutes before losing interest and returning to her own room.

3,715 Words

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