Staying home to look out for my sister – [F] watching [FM]

Last Christmas, I had to put up with my sister incessantly going on about her boyfriend, and ultimately inviting her over while I was home, meaning that I couldn’t resist seeing what she was up to (https://old.reddit.com/r/gonewildstories/comments/7mhknu/being_a_nosy_sister_f_watching_fm/). This year, I was prepared for another festive season of my sister being insufferable about her relationship, and while I’ve had to contend with plenty of that – I had to give up the “down a Christmas drink every time my sister mentions her boyfriend” drinking game to protect my liver – something was also a little “off” about her behaviour since my arrival at the family home last week.

While she’s very open about texting and talking to her boyfriend around the house normally, this time around she was having a lot of secretive phone text chats – snatching her phone to her chest or covering it with her hand if I so much as glanced in her direction. Of course, this just made me curious (and a little worried – she is my sister after all), and so I escalated trying to sneak a glimpse of her phone, and she then escalated hiding it from me, finally getting to the point where she moaned to my parents about me and I got told to “give your sister some space”.

Then, as Christmas Day progressed, she started pestering about my plans for the 27th – was I going out? Where? For how long? Was I *definitely* going out? All day? And so on… While I didn’t have any plans, I was eventually irritated enough to tell her I’d be out all afternoon. In fairness, I did go out that lunchtime, setting off out at the same time as my sister on a mild post-Christmas day. We both went our separate ways, and I went and did a couple of chores, picking up things I needed, but I was soon done and headed home to find the house empty.

This is where I started being a concerned… okay, a nosy, voyeuristic sister. I took my coat and shoes upstairs so it looked like I was still out, grabbed some drinks and settled down in my bedroom with the door almost entirely closed. I then settled down on the bed to catch up on some reading – a pleasant way to spend an afternoon no matter what! That said, I almost gave up on my endeavour a few times as the clock ticked on – there were video games waiting for me downstairs, and as the afternoon progressed it seemed like my sister probably wasn’t coming back before my parents returned from work anyhow.

I was on the brink of giving up my stakeout as a bad idea when I heard a key in the front door, which then opened, and then my sister’s voice rang out. “I’m home….. hello? Anyone in? No?…. Come on, they’re all out” I could then hear what seemed to be a second person entering, and the shuffling of (I assume) shoes being taken off)… then, unmistakably, some passionate kissing and rustling. Then my sister’s voice again: “Stop it”. “What? I thought everyone was out?” came a male voice I didn’t recognise. “I know, but they could come back any time… c’mon, let’s get upstairs”.

I held my breath and stood stock still in my room as I heard them rush up the stairs, passing my room, pleading silently with my sister not to check in my room to make 100% sure I was out. As it happens, she didn’t, and they hurried past to the room next to mine. I waited to hear her bedroom door close… but nothing. Nothing but more rustling and hurried kissing, clear to hear as I stood at the doorway to my own room.

Sounding semi-serious, I hear my sister complain. “Fuckin’ hell, you just can’t keep your hands to yourself can you?” His response was unapologetic: “You didn’t mind when was fingering you in the car earlier?”, to which I heard her groan and giggle slightly amidst more kissing. By this point I had my door open, and was very quietly padding half-crouching to the stairs, avoiding the creaking step while my heart hammered in my head and my brain was flooding my thoughts with excuses if I got spotted.

I found a relatively safe spot from the bannister to peer through into my sister’s room just as I heard the guy say “See? You’re still wet” and hear a little gasp from my sister. From my vantage point, I could see his hand buried down the front of my sister’s jeans, clearly moving in a rubbing motion. Raising my gaze higher, I confirmed what I’d suspected – I didn’t recognise the guy’s voice because it wasn’t my sister’s boyfriend! He looked older – maybe a couple of years older than me – with longish hair and a stubbly beard. I also noted he was wearing a t-shirt, which allowed me to see a large tattoo on one arm – overall, the kind of guy my parents would look at and unfairly say “looks like trouble” without giving him a second look.

I was broken from my pondering of who this guy was by him telling my sister “I want you so bad” – his hand had now been removed from her jeans, and he was now working on unbuttoning them, before struggling to pull down the slim fitting jeans down her legs. Eventually she sat down to allow him to pull them off, and by the time she was standing to resume kissing him he was working on tugging down her g-string to expose her trimmed pussy to him. Once they broke the kiss again for her to step out of them as he finished pushing her underwear down, he asked her simply “turn around”, then “kneel on the bed”.

Once she did this he pushed her back to coax her onto all fours, and without hesitation he scrambled to his knees at the foot of the bed. Without any further pause his hands were on her ass, seeming to spread her before pressing his face in to start licking her. “You’re so wet” I thought I heard again, muffled from his position, as my sister buried her face in the duvet. Even from my position I could hear her working hungrily on him, then spied him unzipping his own jeans and pulling out his cock to stroke it.

He continued his oral efforts as he awkwardly finished undoing his jeans, pulling them and his underwear (which I couldn’t see) down in one go and finally shuffling out of them to leave them on the floor behind him. Stroking his cock a few more times, he stood up, quietly telling my sister “Stay there” as he moved up behind her. After reaching between her legs for a moment or two, he shuffled in closer behind her, and I heard her moan audibly as he first pressed inside her. With a couple of motions, he slowly pushed all the way into her, stopping to elicit a “Fuck, your pussy feels so good” before starting to thrust against her.

The dirty talk continued as he worked up speed. “You like my cock don’t you?” brought a muffled “Yes”. “What do you want me to do with it?” “Fuck me” was the response, then “Fuck me hard”. He certainly did as instructed, and in very little time he was pounding against her, his body slapping against hers as she moaned and wailed into her duvet. This was a quick, intense fuck, and so it wasn’t too much of a surprise when after a few minutes of this I saw him suddenly pulling out, allowing him to cum (as far as I could make out) all over her back.

I say it wasn’t a surprise, but I was suddenly caught like a deer in the headlights. They were finished! Where should I go? I realised I had to move as I heard my sister complaining about the mess he’d made, and so made a silent dash up a few steps and around the corner to my room, pushing the door firmly but quietly almost shut before freezing as I heard the guy on the landing searching for a towel. I was intensely aware of how heavily I was breathing at this point, and tried my best to remain calm in the midst of panic and arousal until, relieved, I heard him walking past into my sister’s room again, at which point I all but slid down the wall to sit next to my bedroom door, listening intently.

I was expecting one or both of them to leave at this point, but instead I could hear plenty of mumbled, unclear conversation, with the odd giggle or laugh as they chatted. Then after 20 minutes or so, the talk was replaced by kissing, and eventually I started to hear the odd gasp or moan creep into the sounds coming from the room next door. My head told me to stay put this time rather than risk being spotted, but… well the rest of me had other ideas. Rather than move to the stairs, this time I did my best video game stealth impression, slipping out of my room, and edging effectively on hands and knees down the corridor to peer very carefully into my sister’s room.

Inside the room I saw them both laid back on the bed, both naked now – he was sat legs apart while her right hand stroked his erection and they kissed, and with one of her legs draped over his as she lay with legs wide open while his fingers strummed quickly over her clit. Realising there were going nowhere any time soon, I looked away, and quietly moved back to my prior lookout point on the stairs.

The mutual masturbation continued for a while, until I heard him whisper something imperceptible to her. This was her cue to break their kiss and start moving. I tensed up, getting ready to move until I saw her moving to clamber across the bed and straddle him facing away from him. Half-standing over him, she crouched, taking his cock in her hand and rubbing it against her pussy, before getting completely into position and sitting down onto it as it slowly slipped inside her. “That’s it baby, ride my cock” I heard him say in encouragement as she started to move on him, her hair hanging down as she looked between her legs and started to bounce up and down.

After a little while she shifted position slightly, I guess to get more comfortable, leaning back now as she slid easily up and down on his cock. I felt an intense mixture of arousal and embarrassment of the incredibly lewd sight in front of me – my own sister, legs open as wide as possible, her trimmed pussy completely exposed to me and a guy’s cock pushing deeply in and out of it, both glistening with obvious (and audible) wetness as she moved on him with her head back and eyes tight shut. I found myself reaching into my own jeans, only to stop myself for fear of giving myself away as my fight or flight instinct kicked me in the proverbial shin.

I heard a voice from behind her rising and falling hips. “Rub your clit babe, cum on my cock for me”. She did as was asked, and I saw his hands coming up to steady her (and move onwards to grope her boobs) while she took one hand off the bed and moved it between her legs in a move they both made with almost practised precision. I could soon start to see the effect of this – her breathing got heavier, then her movements began more insistent. She shifted position quickly, moving her legs and then riding his cock even harder, before I heard a whispered “I’m gonna cum”. “That’s right, cum for me… cum on my cock” was his response, urging her on until she yelped several times, stopping and shuddering a little while she involuntarily closed her legs.

He must have been close at this point too, as told her as much, leaning up and reaching forward to open her legs again, before taking hold of her and begin to thrust upwards against her. My sister yelped and whined again as he started to fuck her, pushing his cock rapidly in and out for a minute or so before crying out “Shit, get off, I’m gonna cum”, a signal for her to move up and pull his penis away, holding and stroking it as he ejaculated again.

This time I knew this was my signal to move, so I silently dashed back to my room while she bemoaned the mess he’d made, hearing her tell him loudly he had to go as my parents would be home soon and that she needed to clean up. They chatted for a minute or two more, I assume while he was dressing, and then I heard him kissing her goodbye with a question of “Still free to see me tomorrow?” She seemed to say yes before leaving him to head down and let himself out, and I could finally take a deep sigh and relax as I heard her shut and lock our bathroom door followed by the sound of the shower running.

This was my cue to take my shoes and coats, head to the front door, and then make a noisy performance of returning, although not after a few minutes outside to try and clear my flushed red face. By the time my sister emerged downstairs I was lounging on the living room sofa with a coffee as if I’d just got back, and tried to casually express my surprise that my sister was home and ask how her day had been. “S’alright”, she said with a shrug, before grabbing a cold drink and heading back upstairs without another word.

Since then, I’ve been relieving the whole thing in my head repeatedly – the guilt at watching, the arousal of what I saw. Plus, should I ask my sister what’s going on? But how would I ask her? What would I say? She was out most of the day today, and I couldn’t help but imagine what she was doing with this other guy…

Source: reddit.com/r/gonewildstories/comments/aaebbq/staying_home_to_look_out_for_my_sister_f_watching

2 comments on “Staying home to look out for my sister – [F] watching [FM]

  1. As always, amazing story. You write with such a great combination of sexiness and wit–I had a good laugh imagining you sneaking around the house like a video game assassin.

    Hopefully, you managed to get some, um, relief for yourself as you relived the event since then!

  2. I don’t know how to answer any of those questions at the end, but I gotta say I think this story is actually hotter from your viewpoint than it would be from either of theirs.

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