Just One Night

I had known Mark for eighteen years. It was long enough to know the difference between his real laugh and the polite one. It was enough time to recognise the little crease beside his mouth when he was trying not to smile. Long enough to know what he looked like when he was angry, worried, tired, or pretending not to be worried at all. Long enough to think I knew him. And perhaps most naively, long enough to believe I knew what he would never do.

That was why I was open to the idea. It all started as a mere joke. We were having dinner with Sophie and Daniel, the four of us squeezed around our kitchen table, wine flowing and the conversation becoming progressively less sensible.

Sophie and I had been friends for years. Daniel and Mark had known each other almost as long. Sophie was ridiculously tiny. Daniel was big and bulky, built like a Viking. I guess opposites attract. Over the years, we'd shared holidays, birthdays, bad decisions, and far too many bottles of wine. An ease between the four of us blurred boundaries more than they probably should have. There were few things we never really spoke about. Our sex lives were one of them, until that night.

Sophie had one too many drinks. We all had. Sophie was talking about sex with Daniel, laughing at how difficult penetration was, how it had only ever happened a handful of times, how they focused on oral to satisfy one another, how she loved giving it, but how she missed sex. She described Daniel as a monster way too big for her tiny body.

When they met, both had a wild past that included drugs, pregnancy scares with partners they had no interest in spending their lives with. Sophie was in a car accident and escaped death but lost the baby and her partner, so she wanted to turn her life around. She saw it as a message from above, warning her about her reckless lifestyle. She decided to calm down, take a few steps back and wait until marriage, waiting for the right partner. Daniel, one of her best friends, visited her in hospital daily, and they realised they both wanted the same things in life. He respected her wishes, and they managed to abstain from sex until their wedding night, just a few months later.

In turn to Sophie's banter about satisfying each other orally, Mark took the opportunity to complain about never receiving oral. That annoyed me. Never? It wasn't, and he knew that. It happened occasionally. It just was not my thing, and he knew from the start. Then he started talking about me, about how sexually demanding I was. He mentioned the big toy he got me for my birthday to take some pressure off him and challenge me. He blabbered about things that had happened between us that were nobody's business, not even our closest friends. I stared at him from across the table. That was private.

Daniel laughed awkwardly and said he should drop me off when I become too much. The men then casually joked about swapping wives. Everyone laughed. I did too, despite my anger. Then Mark looked at me. It was only for a second. But eighteen years is a long time to know someone's eyes. There was something in his expression. Something that made my stomach flutter inexplicably. He smiled and the moment disappeared. The joke should have disappeared with it.

A few days later, over dinner, the topic came up again. This time we were all sober. We discussed the idea, the pros and cons, why it broke couples up. We agreed - we are not those couples. Somehow, we really became curious about the idea. Nobody was promised anything beyond a single night. Anyone could change their mind at any point. It would just one crazy night between friends. The idea excited me, but it scared the hell out of me. What would Mark think, seeing me with his closest friend? What would I think if I saw him with Sophie?

We talked about everything. We talked about what would happen if someone became uncomfortable. Somehow, talking about it made the whole idea feel so much safer. That was the lie we told ourselves, that it was better to plan it. We should have abandoned the idea, but we didn't, since we saw it as helping friends.

The strangest part of our crazy idea was also the thing that made it feel even more intimate. No barriers. No condoms would mean no distance. I suppose with Daniel being massive, it would have been a challenge anyway. If we were going to do this, we wanted to experience the strange intimacy of giving ourselves completely to people we loved and trusted. I didn't realise we were creating something that would later give me a thousand questions to obsess over.

We argued it wasn't just about sex. We wanted it to be different to the stories you read. That was how we justified it. It was about trust, about knowing that the other two people in the room were people we loved and trusted with our lives, how it would make us even closer, more connected. I remember thinking that there was something almost beautiful about that. I would later realise how naïve that thought was.

***

The evening itself began like any other. We swam, drank, ate, listened to music and laughed. Then the little touches started. Small things, like a hand resting on a thigh, a glance held slightly too long, whispers in ears.

At one point, Sophie and I disappeared into the kitchen, supposedly to fetch more ice, and stood there looking at each other. Neither of us opened the freezer.

"Are we actually doing this?" she asked.

"I think so."

She laughed nervously.

"Still time to run," she laughed

"Are you going to?" I asked

"No," she said.

"Neither am I."

We stood there for a while longer, both pretending we weren't terrified. I mentioned to her that I needed to change something, set down a new rule. Before we could talk about it, the men came looking for us. I guess we disappeared for a bit too long, and they were worried that they were missing out.

"If this is really happening, I need to change one rule a little," I stammered nervously. "I realised something just now."

Mark looked at me. "What now?" they both asked almost in unison.

I looked Daniel in the eyes. I am still okay with not using protection, but you cannot ejaculate inside me. I am ovulating tomorrow, so it is not safe.

Daniel looked at me, his expression immediately serious. "Pity, but I promise. It was never about that anyway."

Sophie burst out into a fit of laughter. "How strange, I am also in the 'danger zone'. I wanted to bring it up with Mark before we got there too, just to make sure."

Mark gaze moved between us. "That's... quite a coincidence."

Sophie shrugged. "We spend enough time together. Maybe we have synced up."

I rolled my eyes. "That's not actually how it works."

Daniel grinned. "Whatever the science says, apparently you two planned the evening."

Sophie laughed. Then Daniel's expression changed slightly.

"So... doesn't that mean you both feel more...?" He left the sentence unfinished.

Sophie raised an eyebrow. "More what?"

"You know..." Mark laughed. "More wild, raw, like you want us more?"

I felt my face warm. "Maybe."

"Definitely drives me incredibly wild," said Sophie.

Daniel smiled. "You ladies are going to have the time of your lives tonight, without the happy ending, of course."

I smiled. Mark leaned closer to me. "And you okay?" I nodded. He kissed me and gave me a tight hug, assuring me we could stop at any time should either of us feel uncomfortable. "I love you." In that moment, I felt completely certain, probably for the last time that evening.

We went back to the living room where Daniel set up two makeshift beds on the floor. We drank another shot for courage, and he killed the main lights, leaving two warm lamps on, enough to see and create a softer atmosphere.

Then the kissing started. The first kiss felt strange. The second one didn't, as Daniel was an incredible kisser. After that, the room seemed to lose some of its details. There were four people there. But somehow the rest of the world had moved very far away.

I had expected being with Daniel to feel strange. I hadn't expected watching Mark to feel stranger. I could be laughing with Daniel and still find myself glancing across the room occasionally. Mark was different with Sophie. More uninhibited, more absorbed. I told myself that was the point. He wasn't supposed to think about me or be distracted by me. I wasn't supposed to think about him or allow them to distract me. My husband didn't receive enough oral, Sophie missed intercourse, and Daniel would also have the opportunity to have sex again. It was a win-win, on paper, at least.

Daniel was gentle with me, giving me time to get comfortable with his touch. It was reassuring, and I stopped thinking, even if only for a while. Then I looked across the room, for the last time I told myself. Sophie knelt in front of Mark, completely absorbed in him. A small, ugly thought entered my head.

Slut!

I hated myself for thinking that. She was my best friend. We agreed to this. Just because I didn't enjoy everything she enjoyed didn't mean she couldn't. Mark deserved it too, but she was performing like a porn star, almost swallowing him whole.

I forced myself to look away. Daniel kissed me. I tried to concentrate on him. And I did. His attention was intoxicating. He made me feel wanted. For a while, I forgot Mark was even in the room.

Then I heard Mark tell Sophie to slow down. I heard her laugh. She asked him to beg. Sophie eventually listened, and they started kissing again. Mark's hands were on her now-topless breasts. I could not help but feel a bit jealous as Mark took one in his mouth before working his way down her body.

I relaxed more as things progressed. Daniel knew what he was doing and his mouth brought me back, his kisses progressing well below my belly button by now.... The pleasure was immediate, overwhelming. His fingers teased me while his tongue worked over me until I couldn't think properly. That drove me insane. I could feel the wetness gushing out of me.

"You taste amazing," he whispered. I smiled and closed my eyes. For a while, it was only Daniel, the sensation of him going down on me, me slowly relaxing completely, letting go all the way. Only the strange freedom of allowing myself to want something without thinking about what it meant. "That is better, much more relaxed," he whispered.

Then I heard Sophie begging Mark. "Please, baby....." Mark said something too quietly for me to hear, but I could make out something about how ready she was. I promised myself I would not look again, but I couldn't help it when Sophie begged him to take her slowly. I watched my husband disappear inside my best friend. My Mark, all of him, slowly sliding his erect cock into my best friend, the cock usually reserved only for me.

Sophie gasped. Mark immediately stopped. They spoke quietly. I could see every inch of him disappearing into her again and again. So slow, deliberately slow, soft moans escaping her body. I forced myself to look away.

I suddenly understood that watching someone you love desire somebody else was entirely different from imagining it. He was enjoying himself. She was too, more than I could have prepared myself for.

***

I closed my eyes and concentrated on Daniel. He eventually pushed me completely over the edge. Pleasure washed over me, and for a few seconds I couldn't remember where I was. I felt like a wild animal had woken up inside me. I was ready; I needed more. When I opened my eyes, he was smiling at me. "I think you really liked that, a lot."

"I did."

He kissed me while his hands moved all over my body and touched me. I felt him growing against me. I was ready for him, more than ready, and anything to get the image of Mark and Sophie out of my head.

He got up to remove his swim shorts, and nervousness returned almost instantly. I'd known Daniel was big. But seeing him exposed, now almost fully erect, was different. He kissed me before I could think too much.

"I'll be gentle," he whispered. I nodded. I appreciated that. I relaxed, pushing Mark and Sophie to the back of my mind. I wanted to know what it would feel like having someone as big as Daniel inside me. When he pressed against my opening, I instinctively opened my legs a little wider. I stared into his eyes, and we kissed deeply, passionately. The pressure of his cock trying to enter me took my breath away and made my heart race. I was already completely drenched, but he struggled. Eventually, after plenty of patience and a few more gentle but decisive pushes, my body slowly started swallowing him, letting him in inch by inch. I could not help but gasp. The overwhelming sensation of being filled rushed through me.

Daniel stopped and asked if I was okay as he grew even more inside me, stretching me even further. "Yes." It was a white lie. I felt overwhelmed. I could not believe I had my husband's best friend's massive cock inside me. I never knew he was that big. I didn't know what this meant going forward, but I wanted it, I enjoyed it.

As Daniel moved again, it almost felt as if his cock wanted to pull me apart. The size reminded me of a time when Mark and I played with a massive plastic container many years ago, only this felt absolutely amazing at the same time. I glanced over to Mark again. He was watching Daniel penetrating me. Sophie was sucking his cock again. As Daniel continued sliding in and out of my stretched pussy, some involuntary groans escaped my body. Mark watched Daniel's cock plunge into me. Combined with my moaning, he started cumming, Sophie slurping it all up. He was still hard, probably from what he just saw. Sophie uttered something about needing him and mounted Mark, her breasts in his face. He allowed her to take control as she rode his cock rhythmically.

Some time passed, and I really enjoyed Daniel. He froze, checking on me again. I lifted my legs, encouraging him deeper despite the massive pressure. I stopped thinking about anything and anyone else. He had to stop often to prevent himself from going over the edge. It drove me insane. I didn't want the interruptions.

Just as I got lost in the moment, I heard Mark tell Sophie to get off him, the urgency noticeable in his voice. It immediately distracted me again. She got off him and sat down beside him. With a few strokes of her hand, he ejaculated onto her lower stomach, his creamy juices running down towards her pussy. He then rubbed some of his cum over her clit. I didn't like seeing that. When she said she wished it could be inside her, my body twitched. Daniel also thrust a bit harder at that very second, bringing me back to him, letting out a wild groan as he withdrew urgently once more, ejaculating all over my breasts.

I looked and saw Mark immediately enter Sophie again, this time with hard thrusts. Daniel was obviously more cautious and cleaned us up first. I kissed Daniel, and he slowly became hard again, so I got on top of him, struggling to get him into me, almost as if he was even bigger this time. At the back of my mind, I could not help but think that Mark was acting a bit irresponsible by simply shoving his cock back into Sophie again after just ejaculating, not even cleaning up first, and also rubbing his cum on her clit. I brushed the thought away as I was enjoying being so close to Daniel, riding him slowly. Daniel did so well not to interrupt my pleasure, but after 10 minutes of me experiencing sheer delight, he eventually almost lost control inside of me. He pushed me away with urgency.

"We would not want any of that inside you."

"No," I lied, even though my mind begged for it. The thought scared me, and I attributed it to my hormones.

Daniel cuddled me while we spooned. He kissed my neck and back, gently stroking my breast with one hand and my clit with his other. I was in a dream state and just wanted the moment to last forever. I could feel his half-flaccid cock behind me and pushed into him. "Do you want more?" he whispered in my ear. I nodded.

We both savoured the moment one last time as we knew it was probably the last. Daniel later dozed off, but I was wide awake, thinking about what had just happened. I won't remember every detail about the rest of the night, but I remember the sound of their breathing. Sophie looking at Mark with utter passion and lust, Mark's expression, and the way his attention was completely focused on her; nothing existed beyond the two of them.

Mark uttered something about not wanting to stop, not wanting to finish yet. He suddenly paused, her nails digging into his back, then they continued again. "Give it to me, all of it," I heard her whisper. "I wish I did not have to stop. I don't want to stop!" he exclaimed. He stopped again and pulled out, not ejaculating this time. He could always stop himself before a certain point, and then continue. I knew Mark was sensible, but I knew he was awfully close, running along the cliff's edge.

Sophie was on her back. She pulled her legs up to her chest while forcing him even deeper into her. Mark liked that. When I saw Mark's expression change, something inside me went a little cold. I knew that face. He had to stop immediately. Eighteen years. I knew the change in his breathing, the wild look at his eyes, the wild grunts escaping his body. And she was encouraging it by pushing him deeper into her, moaning uncontrollably.

Mark sounded like a wild animal. That was usually when control left his body, when we were together anyway. That wild grunt said everything to me. I thought I knew anyway, and that was enough to make my stomach turn. That wild grunt would usually be followed by him pumping his load into me or a condom seconds later.

Sophie continued groaning, begging him not to stop while she spread her legs even wider. Mark's body started shaking while she forced him to keep pumping, both her hands on his bum cheeks. She used the extra force to slam him harder into her, deeper into her depths. I wanted to jump up and rip them apart. He groaned, said his balls were tingling, that he was about to cum. That drove her even wilder. She begged him to fuck her harder, to imagine he was emptying his load deep inside her.

I didn't think it was possible, but he went even harder, sweat running down his forehead, wild grunts escaping his body, sloshing sounds emerging from her wet pussy. The orgasmic grunts and shaking returned, only incredibly intense this time, something I had never seen in Mark. Then almost as if something ripped him from a dream, he pulled out and flopped down on top of her. They kissed passionately while he continued moving his body like he was still inside her, still grunting and groaning. He suddenly reached down to her pussy, rubbing it vigorously, fingers sliding into her. What I saw angered me immensely.

"Oh baby, my baby." It was very soft, but I heard it...

Then, as if something changed, Sophie pushed him aside and rushed off to the bathroom. After some hesitation, he followed her. I could hear talking but couldn't make out the words. Then, about 10 minutes later, soft moaning emerged from the depths of the house, eventually turning into intense shrieks of pleasure from both of them.

***

Afterwards, everyone behaved as though nothing had changed. We had a nightcap, laughed, and made a strange attempt at ordinary conversation. Eventually, Mark and I went home.

"Did you?"

He looked at me. "Did I what?"

"You know what I am asking..."

"What? I enjoyed myself, just like you did."

"I saw you went past the point of no return. Did you ejaculate inside Sophie tonight?"

His answer came quickly, almost too quickly. "No!"

I stared at him. "I saw you."

"Yes? I pulled out, as we agreed."

"I saw your face, your body."

"I didn't do anything wrong." He paused, then added: "I finished just as I was pulling out. I was literally just in time, or I would have filled her up."

That statement angered me. I said nothing because I wanted to believe him. But I had known that face for eighteen years, and I couldn't shake the feeling.

"You don't cut it that close, especially when you know she could get pregnant."

His expression changed. "I know. I couldn't help it. I am sorry, but I promise it was okay."

"And then you both disappeared... the shrieks coming from the house..." I was angry, seeing the scene in my head again, her begging him to keep going while forcing my husband deeper into her depths, them both saying they didn't want to stop.

"I didn't do anything wrong. Are you jealous?"

"Then why don't I believe you?" I ignored the question about being jealous.

He had no answer. And that was when I realised what frightened me most. It was the possibility that I had trusted him enough to take a risk with something enormous, and that he might have made a decision in that moment that belonged to all four of us, without telling me.

***

The four of us never really spoke about the incident, as we all agreed it was a once-off. But six weeks later, Sophie messaged me.

It read: I know this won't ever happen again, I can't stop thinking about the other night, how much fun we had. Mark really knows how to satisfy me. You are so lucky.

I stared at the screen. There was another message immediately after the first one:

I know this sounds crazy, but I really want a baby. I have wanted it for so long.

The next message was worse.

Daniel and I can't really... you know. I did not realise how much I missed sex until I was with Mark. We should do this again.

I didn't answer as I was busy, but I had so much to say, but I also did not know what to say. I put my phone down, knowing Mark and I needed to talk.

That evening, Mark kissed me like everything was normal. We made love, but I kept on thinking back to Sophie's messages. I wanted to discuss it with him, but we fell asleep in each other's arms, him whispering how much he loves me. That made things better, pushing it out of my mind for a bit.

During the night, he shifted beside me. We were both asleep, but I could feel he had become hard as he was pushing into me. I pushed back into him. Half asleep, pumping into me from behind, he murmured something barely audible.

"Oh fuck, Sophie."

My eyes opened. I was suddenly wide awake. I lay perfectly still. He didn't wake fully, instead continued with his motions until he emptied his load inside me and instantly went soft.

I stared into the darkness, completely cold. And suddenly the entire night rearranged itself in my head. The joke. The agreement. The trust. The decision to push things that far. The look on his face, his shaking body, the orgasmic grunting, his denial, and now Sophie's message about wanting a baby.

Of course, I confronted him the next morning. He looked genuinely confused.

"I didn't say that."

"You did."

"I was obviously asleep."

"You said her name."

"I don't remember."

"That's convenient."

His expression changed. "Are you accusing me of something?"

"I don't know."

And that was the problem. I didn't know. I knew what I'd heard. I knew what I'd seen. I knew what Sophie had written.

***

Days later, Mark suggested we do it again.

"Not frequently," he said. "Just sometimes."

I looked at him. "With them?"

"Yes."

"With Sophie?" He hesitated, then nodded.

I felt panic. "I don't want to."

His expression changed. "I thought you enjoyed having him inside you."

"I did."

"Then what's the problem?"

I looked at him. "The problem is that I don't know what happened that night."

"You know what happened."

"No. I saw what I saw, and I know what you told me happened."

He sighed, his jaw clenched. "I pulled out in time. It was all over her pussy, not inside. "

"Maybe ..."

"I did pull out in time"

"Maybe you did. But your fingers were inside her. I saw how vigorously you rubbed her after it was all over her pussy?"

He stared at me. "What are you saying? Why were you watching so intently?"

"I don't know. I swallowed. "I love you; that's why I watched so intently near the end. Why is Sophie talking about wanting a baby?"

His expression changed slightly, but I saw it. "What does that have to do with anything?"

"I don't know."

Neither of us spoke. Then I said the words I'd been afraid to say. "I don't trust you. You took it too far."

He looked wounded. Maybe I was wrong. Maybe he'd followed every rule we'd agreed on. Maybe he'd really been asleep when he said Sophie's name, but that still meant she was on his mind. Maybe Sophie simply wanted a baby, and her messages had nothing to do with anything.

Maybe I'd allowed jealousy to turn uncertainty into evidence. But maybe not. That was the problem. And that was the truth. For eighteen years, I had known Mark. I knew his face, his voice, his moods, his body. I thought I knew his limits. Now I wasn't sure I knew where his limits were at all.

"For now," I said quietly, "I don't want to do this again."

He was silent. Then he said: "We need to talk about this properly, all four of us."

I closed my eyes. Because suddenly I understood something I hadn't understood when we'd started. The most dangerous part of crossing a boundary wasn't discovering what was on the other side. It was discovering that you couldn't always find your way back. And perhaps the most dangerous promise in a marriage wasn't the one that got broken. It was the one you suddenly realised you could no longer believe.

***

Note from the author: If you made it this far and enjoyed this story, I'd love to hear what you thought. What worked for you, what didn't, and would you read more stories from me?

I enjoyed writing this story and wondered whether one could make a side income from this kind of work. I probably won't venture into publishing books as I have limited time due to a lot of volunteer work.

What would make you support an author whose work you enjoy? I'm still figuring out what that might look like, so suggestions are welcome in the comments.

Thanks for reading.