A very unsuspected night swim [MMF]

So to preface this first, all participants in this story are in their early twenties. It's also a bit lenghty because I don't wanna spare any details on how it came to happen.

Last weekend was kind of a heat wave where I live, but most of my friends were out of town so I just sat in the cool basement (I'm one of those people) to chill, watch a couple of movies and play some games. My brother (we still live at our parents' because the University we both go to is pretty close and our house is big) on the other hand had a friend [F] over. As far as I understand she was always just that, "a friend" – since she had been in a long term relationship with someone else in their circle of friends until lately. So they were bored and had the idea to crawl over the fence to the public swimming pool, probably because we heard that another group of people was in there the week before and vandalized a little. We obviously never intended to damage anything, they just wanted to have a night swim – it was still really warm outside between 11 and 12PM, which is usually only the case for a few days or weeks in summer where we live.

So before they went off my brother came down and asked if I wanted to come with them – maybe since it was late at night and the place where we suspected the only easy entrance is in a creepy part of a small forest. And since I had nothing else to do and it sounded kinda exciting, I agreed to come along.

So we got in her car and she drove the three of us down to the swimming pool and went around the area to look for an entrance. The hole in the fence that was always rumored to exist wasn't there, so we had to climb over, which luckily went well – they had to help me get over there first and then followed easily, since they both do rock climbing (or bouldering?).

So we got to the poolside which was nicely visible – it was full moon a couple days before so it was still really bright for the middle of the night. While chatting and laughing a little we started to undress, and when I was down to my undies and wanted to jump in it hit me – they wanted to swim naked, which was a kind of natural decision. Their group of friends is much more a bunch of hipster-freethinkers than mine, and also not having wet underwear after is a plus right? Still, I never expected that and never skinny dipped before so I was kind of nervous, also because, uhm, I'm not really good or successful with the ladies. So this situation was pretty rare and weird – but I came a long, so I had to go along with it. From the corner of my eyes I watched her drop her dress and slowly take off her bra and panties, but then she quickly jumped in and I could catch her backside in the moonlight, getting even more nervous. "But for no reason, it's just a swim", so I thought – I know that I am notorious for overthinking casual situations.

So I got naked as well and jumped in before my brother followed along, and I tried not to think about the naked girl that was with us, she was a good friend of my brother after all. For the next couple minutes we just swam, splashed and lounged around in the water, happy to finally cool down, and it was actually fun enough for me to forget my excitement. But then after a while she was bored and challenged us to a diving contest – she bet that she was able to dive a full lenght (25 meters) and we couldn't. Before I realized, she was out of the water sitting on the edge of the pool, and I got a glimpse of her boobs. She absolutely wasn't shy and really casual about it, but in me the nervous thoughts came back. When she got up and walked over to the diving board, and I saw her whole fit, naked and groomed body, I got really hot (and probably blushed too), but took a deep breath to hopefully not act weird. [Wow I'm taking longer typing this down than I expected, sorry if I waste time on too many details]. Then she just jumped in, swam the whole distance under water and emerged with a "wohoo! Go, you're next!". Since my brother wasn't moving at all, I knew it was now my time to get out. I took another deep breath, quickly got out (trying to not look like I'm in a hurry) and jumped in. I easily made the 25 meters (I did swimming through my whole childhood and adolescence), and when I arrived on the other side I just saw her feet dangling – she was sitting next to the pool again, dipping her legs ankle deep in the water. I didn't want to look weird (yes I'm awkward like that, like I said – always overthinking), so I pulled myself together, got out and sat down next to her. She told me good job, and I looked over just to say "you too", but the short view of her relaxed naked body got me flustered and I quickly looked away so she didn't think I was staring. I was kind of getting comfortable with just being naked with some random girl, and I had to because my brother was taking his sweet time to take his turn and swim over to redeem me from the one on one.

We just chatted, and I stared on the water while we were talking, when it happened. She said "you don't have to turn away, you can look at me, I don't care. You should look someone in the face anways when you talk to them." My heart stopped for a tiny moment, but I just said okay and slightly turned towards her. I couldn't stop my eyes from wandering off a bit – she was laying stretched out on the ground and the clear view of her private parts (she was nicely shaven) was just too attracting. I quickly looked back at her face and laid down as well so I wasn't tempted again – but she definitely noticed, and without saying a word left me to stew in my own juice for the remaining minute until my brother finally arrived.

I couldn't get the picture of her boobs and vagina out of my head, no matter how hard I tried, and her elbow touching my side didn't help to forget it. The three of us just laid in the grass for a while and relaxed, but when she suddenly got up and stood between us completely unashamed, seeing her naked body from below finally made a certain bodypart not all that relaxed. I tried to rearrange myself so it wasn't noticeable, but she quickly realised what was going on, and the atmosphere instantly changed (or maybe that was just how it felt to me). It wasn't three friends having a chill time anymore, it was like an electric feeling around us. She giggled and jokingly said "at least you acknowledge me unlike your brother" and looked down to his puzzled self. He didn't know what was going on, but she quickly cleared everything up by saying "You don't need to be ashamed, it's bigger than I thought anyways". Meanwhile, my head was exploding from awkward shame and my brother really didn't know what to do of the situation. But she took charge, and it quickly went in a very clear direction (at least in my overthinking brain I was sure where this was leading, even though I couldn't believe it at all) – she looked back and forth between my and my brothers crotches with a crooked smile and asked if they looked the same as well (people always say that we are very similar or even ask if we're twins, while I don't think we resemble each other that much). I didn't know what to say and he was really weirded out but the situation, but again she didn't leave us much time to act. "Ah come on, don't be like that, relax." She squatted down again between us and laid both her hands in our laps. I didn't understand the world anymore, because I really couldn't imagine her being like that, and girls I know being promiscuous is something I completely phased out anyways (like I said, I'm not a womanizer at all), but I had a raging hard-on by that time and. I couldn't focus on anything, but from what was going on I think my brother at least didn't resist the situation anymore.

She twisted around, laid down on her back again between us and moved her fingers over my stomach and softly cupped my penis with her hand, and probably my siblings' as well with her other hand. I was breathing heavily from the excitement-high and muttered "that's so weird..", so she asked "But it's okay for you two?" to reassure, and we apparently both nodded. "Touch my boobs" she demanded, and I turned around to fondle her breast with my right hand. Her nipple(s) was really hard, maybe from the cool water, and her skin felt really good, and from that moment on I lost all inhibitions. She slowly stroked our dicks (I can't remember if it felt weird to do this with my brother next to us, we were probably way to horny to care) and we caressed and massaged her small but firm boobs. Our hands wandered off further and further (we could feel where the other ones' hand was and automatically matched the distance), until my fingers were far enough to feel her pubes. She started to moan silently, and I turned around to her but she said "Nhn, no kissing", so we continued a little longer until my and his fingers were full on fondling her vagina (we tried to touch each other as little as possible). At that point I was so excited that I almost came prematurely, so I took my other hand and led her fingers to massage my balls for a while so I could calm down. In reaction to that she just said "alright!", turned around and got on her knees and hands, facing her head towards my brother and her butt towards me. The view off her ass and her pussy emerging between her round cheeks and legs was breathtaking, while she had quite a fuzzy landing strip her lips and everything were perfectly smooth. It apparently took me a while to react because she asked what I was waiting for, so I refocused and got on all fours behind her. I started to lick and kiss her butt, inner thighs, then her butthole (I never thought I'd actually like that, but it just looked to perfect) and pussy, while she started giving head on the other end. After a while I increased pressure, and then, with my both hands massaging the sides of her butt cheeks, pushed my tongue really into her, pulled it out over (where I hoped it was at least) her clit, and back up into her vagina again. Her texture and taste really got me going, and when I heard her breathe heavily and moan I had to pull back, scoop over closer to her and bring my cock to her pussy. Since her mouth was quite busy with my brothers dick, who was pretty busy facing in another direction with closed eyes, she couldn't say anything. So I just teased her with my penis a little, and when she did nothing to protest I slowly slid it in with the help of my fingers. She felt amazing, and I finally felt like I was in my element and doing something right because she really started groaning now. I slowly thrusted further into her trying to get balls deep (porn probably influenced me), and then started to move a bit faster, while feeling her butthole with my thumb.

Fucking her from behind and having in mind that she was doing her thing with my brother, I quickly felt close to orgasming now so I slowed down again, at which point she stopped and said "don't come in me please". I reluctantly pulled out and wanted to start eating her out again so I could recharge, but she said "no. not like this" and twisted around on all fours, now facing me. It didn't take him on the other side long before he was inside her, so I got closer and presented my penis under her face. She instantly started kissing my tip and sucking it, and I gently got my right hand on the back of her head and careully applied pressure, and she obliged. It was the first time I was ever deep throated, and it felt different but better than I every imagined. She really knew what to do and I was feeling that I was cumming soon after. I moaned faster and louder to let her know, but she didn't stop sucking so I just let loose when it was too much to bear. I came pretty hard. With her tongue going around my tip she swallowed my cum and softly let off me, while I fell back into the grass, out of breath.

She then told my brother to wait too, and turned around to finish him off as well. I felt really uneasy watching him and her in this circumstance, but too hot to look away as well. He came on her face and her lips, and she had to go to the water to clean herself off. Watching her soft body crawl over the grass I almost got hard again. She then came back, laid down between us and just let out a long, calm "yees."

That's not completely everything, but it's getting late. Maybe some other time.

Source: reddit.com/r/gonewildstories/comments/398ad4/a_very_unsuspected_night_swim_mmf