Fooling Around with Sister Escalated Quickly

This story started off innocent enough. I wanted some thread to make a bracelet, and I knew my mom had some. This happened in the summer of '95. My parents were gone at work and my sister Sarah, and I were left at home during the day. It was the summer before 8th grade for me and before 10th for her. So, we'd been on our own for many years at this point during the day. The thread was in my parents' bedroom in a wooden chest about a 1x1x3ft that had a potted plant on it. The plant was really heavy for me, but I was able to move it off and the chest had a latch for a lock on it, but no lock. I must put here that this moment in my life just before I opened this chest, I had seen porn magazines a few times, never seen a porn video and definitely never had easy access to either. I had had a girlfriend and kissed and felt her up, but that was it and it was all very sparse and new to me. I opened the chest and yes, there was the thread I needed for the bracelet, but there was also something else that caught my eye. It was a VHS porn of SplashShots with Tori Welles. I immediately ran downstairs to the main TV room and put it in the VHS player and hit play. I vividly remember the first time I saw this, it was a super close up of Tori Welles vigia getting fucked on our 32in TV and my head about 12 inches from it. It was amazing! I instantly got hard and went back to the sofa to masturbate. This was happening in the few hours in the morning when my parents had gone to work, but my sister hadn't woken up yet. I knew I had an hour or so before she might even get up. I watched the video till I couldn't hold it anymore and cummed. It was amazing too. I had jerked off before that many times, but it was always to something in my imagination for a good at school or a movie star babe. This was real women who had full sexy bodies. It was worth more to me then a gold mine at the time, haha. I'm not sure if I did this the very first time, but I think this fact help me never get caught. Our VHS player had a counter from when you played the tape. So, when I had cummed and was done with it, I'd fast forward or rewind the tape till this counter was 0. That way it was always in the same spot as when my mom left it. I'll also add here that I never once thought about my mom or dad watching this and how that might be sexy. It never crossed my mind and I don't think they are sexy, which is probably why. 

I started watching this video just about every day towards the end of summer. I'd do it right after my parents left while my sister was sleeping and I'd have the whole basement to myself. I would put it on the TV and sit on the sofa naked and watch the porn stars fuck. Sometimes if my sister was gone for a sleepover I could even turn up the volume really load and her them moan even more. That was always a nice treat. 

About a week before school started I had my routine to go get the tape and watch a few scenes and get off for the day. It had become such a routine that I didn't really think much of it at the time and the sneaking had really lost it's edge so to speak. I had gotten the tape and put it in the main TV's VHS player and was playing it as I walked the 10feet or so from the TV to the sofa and sat down. My sister came down the stairs into the room. I remember saying "wow, what are you doing up."  And she said she needed to start getting up early for school soon and was starting now. She later admitted that she knew something was up because my eyes where huge and my body was stiff as a board as I tried to rumble with the remote to stop the video. I was not fast enough, she saw that it was a porno video. Then she was also shocked wondering what I was doing. She asked me what channel I had found, thinking it was the playboy channel or something. I told her it was a tape. She wondered where I had gotten such a tape. I told her it was from mom's chest upstairs. I must add that I was so freaked out at this point of getting in trouble, not sure how, but that I must be just about to get in trouble. My stomach was sunk and in a knot. Then my sister told me to play it. I was totally freezing on what to do, so I just hit play for her. It was a scene of Tori Welles giving a guy a blowjob, zoomed in and looking huge on the TV. Later I found out this was my sisters first porno to see as well. The guys probably 6-7in dick looked huge on our 32in TV zoomed in on the blowjob and my sister was focused on it. She then sat on the sofa with me and watched for a bit. I just watched with her and watched her waiting for her to get mad or grossed out about it all. She didn't. After a minute or so my stomach was feeling normal again and then the scene changed to them having sex. My sister was shocked and said they are actually showing them having sex here! I told her "yeah, they're a few people on this tape having sex even two girls." The two girls part made my sister give a gross face, but I thought it was super hot. Then my sister noticed I liked it and turned to me and asked, "were you jerking off to this?" I told her "no, I had just found it and come down here to see what movie it was." She then asked "you just found it?" I probably turned red at this point and said "no, well a while ago, but I did just come down here." She then picked up on it, "So you were planning on jerking off here on the sofa?" Then I had to admit I was. Then she pushed me and told me I was gross that we all use this sofa. I then told her fine I won't and I started to rewind the tape to the 0 point. She asked me what I was doing. I told her "I'm putting the tape back if I can't really use it." She then got up and told me "fine, just put it back so mom and dad don't catch you," and she went back to her room. Later I found out she Jilled off then to the sex we had just watched. 

I didn't use the tape for a few days, but then I did. I had a dream of a girl from school and was excited to see her again and see how much she had grown up over the summer. I had some morning wood and really wanted to watch the tape. I went and got it and took it to the main TV again and started watching it. This time I did get fully naked and was stroking. I was definitely more horny then brains as my sister quickly comes down and sees me jerking off. She of course yells and asks in shock "are you jerking off?" I quickly try to hide myself but to late seen everything and my clothes are in my room. I tell her no, but we both know that is a lie. She fully comes in the room and looks at me. "I thought I told you not to jerk off on the sofa?" I just told her sorry and she grabbed the remote and pressed play as she starts watching. My erection is quickly gone and then starts back up as the video plays. A minute or so later she says, you can keep going. I'm not watching you. I give her a little look but I'm to horny not too. I start playing with my dick as it gets fully hard and I start stroking. I did look over at my sister a few times and sure enough she wasn't looking at me. But I did notice her breasts looked much better than usual and her nipples were hard. I really really wanted to touch them! Wow, I thought, that was a first. I look back at the porn and keep stroking. The video gets to a point where the guy gets onto of the woman and starts stroking his dick between her tits. My sister blurts out "Oh, she's faking it, that's dumb!" I just laughed and said I bet her tits feel good though. My sister then grabs both her tits with one in each hand and then moves them up an down a few times and says "that doesn't feel good." I just shrug it off and tell her "maybe during sex it does?" but then I notice my sister bend both her legs up and puts her feet onto the sofa and lays out the right leg away from me and I see her hand go down and start rubbing her pajamas on top of her pussy. I then feel it, I'm pass the point of no return and I'm about to cum. I then accidentally make eye contact with my sister as I quickly try and turn to the TV, but I shoot my first load off into the air as I grunt. I get a few more off as I hear my sister gasp. I know she's watching me and it's so overwhelming I close my eyes and just let everything happen. I shoot a few more ropes off and they all arc and land back on my stomach and chest. My sister just tells me "good job, you better go shower now!" Then she gets up and goes back to her room. I get the tape back and go shower. I can't believe I just did that in front of Sarah! I was so horny I didn't care she was watching that was strange.  

School started and I didn't get to watch the tape for a while. It was all good though, flirting with girls at school and hanging out after school was great. It had been a month or so since I watched the porn last and I was home after school with Sarah. We always had those few magical hours between getting home from school and parents coming home. I mostly just used them to get in trouble with my friends, but this day Sarah comes to be and says "Can you get that Tape for me." She put air quotes around “tape” as she said it so I'd know it was now the secret word for us. I told her sure, but I wanted to watch too. I hadn't shown her exactly where the tape was yet, this time she followed me into the bed room and watch me move the plant and open the chest and shown her how to find the tape in the almost junk draw of other items. She then took the tape and started going to her room. I stop her and asked "aren't we watching it downstairs?" She said "No, I'm watching it in my room I have my own TV and VHS player." I told her "well I'm watching it with you" She said no and then I told her "Yes or I wont get it for you again and you can't move the plant" She told me fine and to stay on floor. We went into her room which was a twin bed with a tv and vhs player at the end of it with a few feet of floor space at the end for me to fit in. I put in the tape and she had the remote to play it. She'd fast forward and rewind to find what she wanted. It ended up being at the start where they were making out and then the guy was eating the woman out. I loved it because it gave a good zoom in of the pussy and got me off fast. I jerked off and finish before my sister and I'd just listen to her wet pussy being fingered and hearing her moan. I was surprised that I got aroused by her moans and that it was making me hard again a lot faster than normal. Once they started having sex she couldn't handle it any more and she moaned harder and orgasmic. I then remember looking back over the bed and seeing my sister's lefgs spread out wide as she slowly rubbed her wet pussy as she finished coming down. I just smiled at her and told her "looking good Sarah." She quickly put her pants on and I showed her how to zero the tape and we went and put it back. She then kissed me on the cheek and told me "thank you, I needed that." I was dumb founded at that point, as I didn't really understand women getting horny and needing to have sex too, but I was starting too. 

This happened once or twice a week, ether she'd as for the "tape" or I'd just get it and show her as I walked downstairs. If she didn't join me I'd watch the lesbians and if she did I'd watch the blowjobs and the bigger boobed woman having sex to get me off. That was when I'd get the remove in the basement in Sarah's room she'd have the remote and watch the women getting eaten our and the sex. One day I realized she always watched the same scenes again and again. I first thought it was dumb how boring it was but then realized that must be what she really wanted. At that same time I had a crush growing on a girl named Juila at school. I'd now say it was total lust as I'd never be able to get close enough to her to ask her out. But Julia did start to get into my jerkoff dreams and I had a few of eating her out. Then I started wondering what she must taste like? The porn shows it must be good? All the guys do it. Then the connection was made. My sister loved watching those parts because she wanted to be eaten out and I wanted to taste a pussy. I then decided I'd try and eat out Sarah. Then I double thought that idea of eating out my sister, but still wanted too. I as to curious an while I didn't think of Sarah as a sexy babe, she was good looking.

I then stopped getting the tape for myself so about a week pasted and then Sarah asked me for the tape. I told her I would get it again but only if she helped me out too? This got a big eyebrow raise and almost a smack, but she asked "for what?" I told her I wanted to see what a pussy tasted like, so while she watches the girls getting eaten out, could I lick her pussy? That didn't go over smoothly. It was a no, then a I'm your sister, then a why me. I kept telling her I was curious to taste a pussy and I thought she would be taste good like in the porno video. I was able to convince her by reminding her that the women in the video seem to enjoy it, so isn't she curious too? I got the tape and put it into her tv. We both got naked and were now stripping in front of each other each, which I must admit always blew my mind seeing her body getting naked. I was fully hard and stiff pointing up as she laid on her bed and started the video. She laid back and opened her legs as I sat on the bend. I then looked her in the eyes and then at her pussy and laid down between her legs. It was at that moment I totally got stage fright and realized I had no idea what I was doing. I'd seen the porn guys lick the woman many times, but now I didn't know what part to lick. I just stuck my tongue out a little and got a little taste. Not bad, not good, so I kept going. I would just lick up a little bit a few times and it was ok. I was kind of shocked by how bland it was. I kept going licking her more and more and then I could taste her more as she got wet and then I was really tasting her, it was good, but not what I expected. Then I started hearing Sarah moan. So, I licked her the same way again and she kept moaning. I tried putting my tongue into her pussy and that didn't get anything from her, so I kept licking and went by her moans. After a bit a located the spot and kind of lick that made her feel good. Sarah was moaning and telling me that it does feel good, better than the video shows. Then she paused the video and just had me licking her. At this point I had my hands wrapped under her legs, holding her panty line as my mouth was fully on her pussy and I was hard as a rock humping against her bed. She was moaning like crazy when she grabbed my head and squeezed her legs on me. Then I heard her orgasmic moan that I had learned to wait for. Her pussy flooded and I tasked it all, it was very overwhelming to me, but to see Sarah in so much pleasure I knew I did it right. I knew I was about to blow too and I keeled up and started jerking while looking at my sisters wet pussy and legs opened wide. I only needed a few strokes and I blew my load right in front of my sister. My ropes shot out landing on my stomach as tried not to shot on to her bed. My sister with her legs out wide then reached them around me and put her heels into my butt and pulled me onto her. She kissed me on the lips, with her tongue going into mine. We were both so in the moment I just went with it and started making out. I was still hard and my hips started pushing into her, just above her pussy. It felt good to me, but had no chance of going in her. She pulled back from kissing and said “that felt so good, why didn't we do that sooner?" we kissed a bit more, then we realized we had cum between us and we both needed to shower. Which we did return the tape and went to our showers and cleaned up. In the shower I thought about Julia and if she tasted the same. I tried to come up with a plan to eat her our as well. How could I get her here or get to her room to eat her out? I'll spoil it, we never did. I was never really close enough to her to ask her out, but of course there were others. 

That was a definite moment where things changed for my sister. I tease her now that it's the moment she went all in. She slowly stopped asking for the tape and if I would come to her room and just eat her out. She would also want to make out with me, which I loved making out. I'd get rock hard from it. One of the school holidays she came to my room while I was awake but still in bed and jumped on my lap. We started making out and it was great. I was kind of just waiting for her to ask me to eat her out but she didn't. She pulled away and ask me if I was hard? Of course I was, but in my pajamas and underwear she could really feel it. She asked me to take off my bottoms and of course I did. We started making out again, but this time she started grinding her pussy mount into my exposed hard dick. Oh it felt so good. Then I realized she was going to make me cum this way. That was such a shock I didn't see coming. I then moved my hands from her waist to under her shirt to her boobs. It was the first time feeling her boobs up and they were so great and soft. Then I felt her moan into my mouth and I lost it. I quickly grabbed her butt with my hands and push her pussy mound into my dick as I orgasmic. She kept making out and grinding on me as I then grunted into our kissing. I felt myself going limp under her so I reach down and starting rubbing her pussy. I then pushed a finger into her and felt how wet she was. It was amazing to be feeling her with my hand to really explore her pussy while she was on top of me. I then found her spot by random luck. A few inches in on the top wall inside her vagina and when I pushed my finger into it to see what the bump was I felt. Sarah instantly locked her lips around our kiss and moaned into me harder than an EMT performing CPR. Then she was really grunting and didn't last too much longer till she collapsed on top of me. 

We stayed at this point for many months, playing around like this once or twice a week helping each other get off. We also both went out on dates and saw other people. We had a quick chat about that once and we both wanted to see other people as well and keep doing what we were doing. One funny thing that I remember from this time is for about two weeks for some reason I thought that if you had sex you got AIDS. Not if your partner had AIDS or if you didn't use protection or anything else. Just straight up if you had sex you got AIDS and because of that all porn stars must have AIDS. I find that funny how dumb I was on that. But the point is that it did slow me down in trying to have sex and just enjoying masturbating with my sister for a longer time. I'll also add that at this time my sister was not a virgin, but I was. We didn't loose our virginity to each other, which we are both good with. I wouldn't have minded her being my first, but it wasn't meant to be. That ended up being a girl named Cara. Cara was a few lockers down from me and that spring she started flirting with me. She was a total flirt and it normally went no where. With everything going on with my sister at home I had also gotten a huge boost in my confidence with girls at school. So one day Cara and I are chatting and she says something about walking home after school. I then told her that I also walked home and she invited me over. I had track practice or something so I couldn't right after school. She then took my hand and wrote her address on it and told me to stop by. So on my way home I went to her house, which end up being in the other direction, so it was the long way home. When I got there, no one was home, great. Then I hear her and another girl in the back. They had just finished smoking a joint in the back hiding my the shed. She lived in a single wide trailer. Which was fine, no judgment, but it did make hiding things like this impossible. She was with a girl I had known for a few years and didn't like, Jessica or as well called her Trex. We went inside and I could see them mellow out over a few mins. Then Cara got a call from a friend and told them she and a cute boy over and that they should come join us. Jessica turned to look at me and asked me, "are you the cute boy?" Well I was the only boy here, so I guess so, Jessica! I then got up and grabbed Cara and walked her into her room. I then started messing with her asking what she was going to do with this cute boy? She started to flirt and stall and I just kissed her on the lips as I grabbed her hips and pulled her into me. She wraped her around around my neck and was all into making out. After a bit, I pushed her slowly back onto her bed and started feeling her up as we made out. She wrapped her legs around me and I started grinding my hard dick into her. I'll add something now here Cara, never said no to me, for anything. I'm not sure she could. Cara was also very skinny, almost to skinny and had no boobs. I took her top off and played with her nipples a bit, then I took her shorts off and ate her pussy out. Cara was also a moaner and loud. I know Jessica could hear her, but I didn't care. I was in the zone and going to have sex. Cara was moaning and wet in my mouth. I could feel her legs and thought she had had a few smaller orgasms. I then stood up and took my clothes off and laid back on her. She wrapped her legs back around me and I grinned my hard dick against her and it slipped into her wet pussy. OMG it felt so good. I though having my sister grind on me till I came was what sex must feel like, but no, actual sex was so much better. We just laid there in that one position the whole time and I fucked her for a few minutes till I pulled out and blew my load on her stomach. We kissed a few more times, wiped her off and then got dressed. When I opened the door there were now 3 more girls in the trailer, all who I didn't know and were staring at us. They totally knew what we had done. One of them gave me a snide comment asking if we had fun. I told her "yes, it was great." I hung out about 3 more minutes till the sex buzz wore off, then I was out of there. I couldn't handle the teenage girls chat, even at that age.    

That night I told my sister I had sex today. She told me good job and asked who with, but they didn't know each other. Then she asked how it was. I told her it was amazing. I didn't think it could feel much better then when she would grind on me, but it felt so much better being inside her pussy and not just rubbing against. Then she just smiled at me and said well of course the real thing feels better, that's why everyone wants to do it. Then she walked off. 

Cara and I didn't date. We'd hang out and have sex or she'd blow me when I wanted. It was always fun to hangout with her, but she was so unreliable or out of it and never knew when she'd want to hangout. It always was a spontaneous thing. It's funny to me now, but looking back at it, with my sister and or a good video I didn't need to put up with Cara being a flake. I also now think she probably had some type of sexual abuse going on as to why she was out of it a lot of the time and never said no to any sex act. We never got caught, but we'd have sex outside in the woods or behind her shed. Kind of wild what you'll do when horny an no one says no. We faded apart. When I went into 9th grade we were sent to different high schools based on where we lived and I never saw her again. 

The Summer going into my 9th grade was a crazy one. All the BS of the unknown of what high school will be like. My sister would tease me and tell me how much bigger the guys where and how they would bully me as a Freshman. Which was true, but only 10% of what she told me would happen actually happened. That is also the summer my sister and I started having sex. We started about week into summer. I had figured I wouldn't see Cara again, no internet to stay in contact back then easily. I was jerking off thinking about how much better the sex was with Cara, then getting grinded on by my sister and decided we'd have sex that summer. Sex was so much better, while grinding worked, I needed to have sex. I had a few different ideas about how we should start, but this is what actually happened. After my sister had slept in and our parents were gone she had come down to my room naked. This wasn't the first time she came to my room naked, but it was new for her to do. I was in bed playing video games when she came in. She took the controller from me and got on top of me to make out. I was all for it as always. We made out till my dick was hard and my budge was wet from her pussy rubbing on me. Then she got up and told her to dry hump her butt. I did really like this one, so I just said yes. She laid on my bed with her legs apart and her hand under her to rub and finger her pussy while I laid on top of her and humped my dick between her ass cheeks. I really enjoyed this because I could hump her hard and shoot my load while humping her and see if I could hit her head, sometimes if I hadn't masturbating for a bit I could. I laid on top of her back and slide my dick up and down her ass cheeks for a minute or so. She starts to moan and I can tell she's really into it and enjoying herself. It felt good, but I wanted sex. I leaned forward and whispered into her ear "we should have sex now," she smiled back and said "yeah, that sounds good." I dropped off her ass checks and told her to guide in. She grabbed my dick and rubbed it on her pussy lips and then I pushed my hips into her. She was so wet I pushed all in with little resistance. I held it there feeling my dick all in my sister's pussy. It felt warmer than Cara did and I was immediately more happy to be having sex with Sarah. Sarah had made this moan grunt as I slid into her and then relaxed as I held myself in her. I'm sure it was only like 4 seconds, but it felt wonderful and just lasted forever. I started humping her. I went very slowly going in and out trying to feel it fully. Sarah, just said that is much better and relaxed with her hands now spread out on my bed. I kept slowly humping her and pushing fully into her pussy. I enjoyed getting fully into her and then pushing again to lift her up a little. She'd make a little moan when she'd lift up and I knew I was onto something. A few minutes she started moaning hard and she closed her legs together on her orgasm. Her heels hit my butt and I pushed harder into her and then I got the tingle I was past the point of no return. I did another stroke into her and then pulled out and shot my load onto her back and long hair. She then rolled around under me onto her back and wrapped her legs around me and pulled me onto her. We kissed a few times and then she told me that was great and she had been thinking about having sex with me, but she was seeing if I was really dating Cara. I told her that was over and that sex with her was so much better. While I was laying on her, my dick was on her pussy and I could feel her heat still. We chatted a little bit about how can't believe we just finally did that, but in a good way. I told her we should have sex every time now. She agreed saying it felt so much better with me inside of her. I was so happy kissing her while she was wrapped around me I got hard again and started grinding into her. She smiled at me and asked "again?" of course I said "yes." and I moved my dick till it was pointed into her pussy and pushed into her. Oh, it was so good sliding into her pussy while her legs are around me and we start to make out again. We were deeply kissing with our tongues and I was slowly pushing in and out of her pussy. This time we made out the whole time while I was inside her. I could feel her moaning into my mouth and her legs tightening around me as she had an orgasm again. This triggered me again, and would for a long time. I felt my dick tingle and I pulled out again and cummed on our stomachs, This time I rolled off her and laid next to each other while we recovered. After a while we got up and went to shower, this time together for the first time. It was fun to be able to put soap all over my sisters naked body and wash the cum off. She also washed my dick and stroked me some for fun.      

Going into high school I asked my parents for a TV and VHS player. I really did want it for regular movies, but it made it nice to watch porn in my own room. Still watching the same porn. Had that baby memorized at that point. Then one day I started going through my dads dresser to get some money. It was a known non secret that everyone in the family took dads loose change and small bills from this dresser, so it wasn't to big of a deal, but I then looked at another draw and under his clothes I found a porn magazine. It was Club Magazine and it showed more than Playboy did. That was fun. I jerked off to a few of the girls and showed my sister the magazine. She thought it was neat to see, but once she did, she didn't like any of the pictures and didn't care to see it. Her loss I thought. I started going through dads dresser more often then. That is when I really hit the gold mine. Dad didn't just keep one movie forever like mom. Dad would have new magazines every few weeks and also a new porno video maybe every month or two. It was some where closely after this that I learned how you could use two VHS players to record your own VHS tape. Make a mix tape. I did this for Mtv music videos and shows I liked. Then I got the bright idea that if I copied the porn videos I wouldn't have to worry about returning them perfectly or getting caught when taking them so often. I'd just need to do it once and be done. So that is what I did. I started making my own porno mix tape. This was when my sister and I really started experimenting. The porn videos gave us so many more ideas to do during sex. It's such a difference from today. Imaging you could only watch 5 videos from a category for a month or two, then loose those forever and get 5 more. Not a page of 50 and an endless amount of pages. It even took a few tapes to see one of a lady teasing cum. That was the first one I was really exited to try with Sarah. I would normally cum on her body and some times in her pussy, but never in her mouth. The new tape had a girl finishing the guys off with blowjobs and swallowing their cum. I asked Sarah to do that with me and she said no, it was gross. I did end up talking her into about week or two later. She was wanting sex while our parents were home and I told her if we end with a blowjob then we can do it in your car some where. That sounded like a fair deal to her, shows how horny she really was then. She drove us out to a side road and we had sex in the backseat. She'd sat on my lap and rode me till she came. Then she got off me and sucked me till I came. Then she admitted that is was kind of fun to do, that she liked watching me squirm and oface while she had the power holding my dick in her mouth. 

Sarah ended up going to a local community college and staying at home during those years. For me this was my last two years of high school. I had always played sports, but these years I finally was able to really put on my mass. I ended up going to state for wrestling and track my jr/sr years and did nationals my sr year during the summer. Of course my sister noticed this body change before anyone and developed a new kink I didn't realized for a while. It was basically that she wanted to be dominated, but only in such a way that she could see my muscles really flex for her. Simple enough, most women like that at some level, but of course my sister couldn't just tell me that. She has to be sneaky and hide it. So she'd end up taking things from me and taunting me to take them back from her with physical force, but she was really had at it. As soon as I'd have the cd or jacket or whatever she'd just wrap around me and start grinding on me.  Not the worst of course, but it seemed out of nowhere to me at first and then I'd call her a weirdo and then she'd storm off. She'd even started doing this when our parents were home, which was always no before. Finally it clicked for me when I was topless working out at home and she jumped me. She started rubbing her hands all over me and talking about how she loved my pumped up muscles. Then I could feel her soaking wet and I believed her. This lead to more sex around the house when our parents were gone and mostly in the basement when they were home upstairs. While we did have sex a few times while our parents were home and our hormones got the better of us, we'd usually just dry hump while we wrestled like that. We had a room in the basement that I took over as my gym. Not much just a barbell and some weights to do bench and clean and jerk. It also had the oldest softest sofa I still have ever at on. Sarah would come watch me workout and at the end jump me on the sofa an start grinding on me. The room was kind of close to the stairs, but we could hear the stairs creek a little if mom or dad were coming downstairs. Which did happen a few times and she'd jump off me. Normally though she'd more or less give me a lap dance to get me hard and then straddle me and grind on my hard dick as we made out. Still to this day it's a sign she wants to fuck when she pushes me and says anything, normally taunting me. 

The last event I'd like to cover as I grow a post into a novel, haha, is when we started having anal sex. We started this well into my sr. year of high school. I got very curious about it from the porn I then copied from my dad that was only anal sex. At the time I didn't really know women did that. I knew guys of course did as the only hole to use, but why choose anal over pussy? Seemed the women in the videos were enjoying it. When I asked my sister about it she said she had never done it and didn't really want to. I didn't ask anything more, but during sex I did slowly start to push it in. When behind her having sex I'd rub my finger round her butthole a few times. She seemed to not mind and didn't say anything afterwards. I then pushed it a bit by pushing my thumb into her butthole while behind her. He moaned quickly and turned back to me and called me a jerk, but she didn't stop. We finished that sex quickly after that. We chatted about it and I found out that she had thought about anal as well and had tried a few smaller items like rounded marker while she'd get herself off. At this point I was ready for round two, but she was not lol. We had sex a few more times where I played with her butthole, but no actual anal. Then a few weeks later she said she was ready to try it. She came to me with a bottle of lube and clear instructions that I was to use a lot of lube. she had been trying this with a vibrator she had and found it was a must, which ended up being true. She started off by giving me a blowjob for a few mins, then we had sex missionary as we made out. She had a few little orgams and was relaxing. We then stopped and she got on her knees bent over for me. I then used the lube. I must say I used a lot! I first some on her butthole and fingered some into her as I dripped more lube onto my finger. I also slid my dick back into her pussy while I did this. It seemed to be working well. I was able to get my whole pointer finger into her. She started moaning and was starting to enjoy this. I then pulled out of her pussy and poured oil over my dick from top to bottom and stroked it around, then as I push my cock head into her whole I poured a little more on. I was dripping with oil at this point. I slide my cock fully into her and felt it suck in as she squeezed around and moaned hard and cursed. I just held it in there as I moved slightly in and out. I could hear her breathing hard and still kinda cursing. I was trying to go slow, but I really just wanted to grab her hips and push all in. I did grab her hips and pushed into her, but only got about half into her when she started to curse at me. I slide mostly out and then back in going a few inches in and out as we fucked. During this I thought it must be painful but she wasn't tell me to stop. She was just flipping around a lot more and breathing harder. I just kept on fucking her and enjoying myself. Her legs were wide with her shins next to mind on the bed. This is when I felt her start to shake. She had never had leg shake before. Then I could feel her whole body start to shake and her legs shake more. She was breathing hard and grunting with each breath. It felt amazing, that is when I started cuming in her. Cuming in her ass felt great as I could leave my dick in and keep fucking her while I came. It would also lube it up and I didn't have to worry about getting her pregnant. We chatted about it after that first time. She admitted she really enjoyed it. We added it into our normal routine about once a week. It took a bit of time but she did get to where I could fit my whole dick into her and she could ride me anally at her own pace. I soon learned how lucky I was with a few other girls around that time I was seeing were willing to try anal, but it didn't work as well for them. I'd come home frustrated and end up getting my sister to fuck anally. 

I think those are the major events I want to share now. We do still hookup now and then, but it is always unplanned and we both have significate others to sneak around on. For some reason I have never and would never cheat on my wife with anyone I know, but my sister doesn't fall into that category.