Swinging Generations
Copyright© 2026 by Tim-Rachel
Chapter 1: Every story needs a start
Coming of Age Sex Story: Chapter 1: Every story needs a start - Our life so far in various chapters... Swinging and a lot of first times, together with how our story is coming on....
Caution: This Coming of Age Sex Story contains strong sexual content, including Ma/ft mt/Fa BiSexual Cheating Wife Watching Swinging Masturbation Oral Sex
I’m Tim and my girlfriend is Rachel. Our story is a bit unconventional, but one I don’t think any of us would change. I have known Rachel since first school. She was petite, clever, and kind, but always quite shy. All through middle school and into senior school, nothing changed. She preferred to stay mostly in the background. Towards the end of our time at senior school, we suffered our GCSE exams. The day that all the exams had finished, I met Rachel walking through the park as I was going to an end of exams party. We were both (just) sixteen.
Despite her shyness, we knew each well. I’d always got on fine with her and we’d often chatted. That evening, she was wearing a short skirt and a stripy top, but she was also wearing makeup. I couldn’t remember ever seeing her wearing that, and I had to admit that it suited her. I told her that she was looking very pretty, probably just through kindness at first, but the more I looked at her, the more I realised that she really was!
I asked if she wanted to come to the party with me. She was nervous at first, but I told her that I’d love to go out with her. So, we went to the party. We chatted, we danced, we kissed and cuddled, and in the dim light of one room at the party, I fingered her hairy pussy under her short skirt. As she gasped and shuddered, the old Rachel melted away in front of my eyes!
That summer, we were inseparable. She made me a better person – getting me to study to prepare for going into sixth form. We went cycling, walking, to the cinema and ice skating. Then came the day of our GCSE results. Rachel did, as expected, brilliantly, but, very much surprisingly, I did much better than anyone expected.
For the final couple of weeks of the long summer holidays, Rachel was going to stay for a week with her Grandma, who lived along the south coast. I was invited, so we made the long trip down south. The trains were on time and we reached the south coast around 7pm.
Rachel’s gran was an older version of Rachel, just as small and petite. She’d had a fall some months before and now slept downstairs, as the stairs were too much effort for her. There was a full bathroom upstairs, but also a shower and toilet downstairs, so the lack of access to upstairs for her didn’t really cause a problem. She was quite hard of hearing and you needed to ensure you stood directly on her good side to get her to understand you.
Gran told us where to find the bed linen and to make up the two guestrooms upstairs. We made up both rooms, but one had a double bed and we soon decided that it would be safe for us to share. That night, I undressed Rachel for the first time. She had the tiniest of boobs - 30AA – but she loved having her nipples sucked and played with. I had a pack of condoms in my wallet, a pack I’d had, unused, for several years, but we were both virgins. I undressed and she was amazed by my cock. I too was amazed but nervous that I’d be too big for her. I needn’t have worried. Cocks always seem bigger than they are and pussies are much more elastic than you’d imagine.
We kissed and I masturbated her for a while until I climbed over her and put my penis at the entrance to her pussy. She tensed up and I told her that if it hurt, I’d stop. We’d brought beach towels with us and we put those under Rachel to catch any blood that happened whilst losing her virginity. I think we thought it would be like a period, with quite considerable amounts of bleeding, but there was not that much. In the end, I found her very wet and I slipped inside easily.
I tried to take my time, but the new sensations for both of us, combined with her tightness and my teenage hair trigger when it came to cumming, meant I didn’t last that long. She didn’t have an orgasm, and I was mortified by that, but she assured me that all the books say that that comes, if at all, with practice, preparation and performance. She then lay back on the bed and masturbated in front of me. I’d never seen that, nor even knew that she masturbated at all.
Watching that was mesmerising and hearing her breath quicken, I was standing at attention once more. This time, I lay back on the bed, and she straddled me. I realised she’d done a lot more reading about sex than I had done, though I shouldn’t have been surprised. She looked at me as she controlled my strokes inside her. Sometimes she took it slow, sometimes almost maniacally fast and occasionally she’d drop down hard on me and I’d push up at the same time, filling her deep. The sound she’d make at those moments was wild and guttural.
She came before me, briefly, and as I pulled out, she lay next to me and masturbated, having at least one more orgasm before we both went under the sheets and cuddled. Sleep came easily and I woke to find me spooning her from behind. She was already awake and my morning wood was pushing her from behind. She reached between her legs and guided my cock into her pussy, still wet from the night before. This was a slower fuck, but felt really good. I reached around the front of her and held her as we screwed. It was only as I came inside her that my mind registered that I hadn’t worn a condom. She told me not to worry as she went on the pill, the day after we started to go out!
Her Gran heard nothing and suspected nothing. We had a great couple of weeks and went back home, and on to school, as a very happy couple. Sex continued between us and only got better and better. Rachel’s parents knew, because she told them. My parents knew, eventually, because they caught us. Cue much merriment from my parents and plenty of good-natured teasing. Both sets of parents were very supportive, once they realised we were being sensible.
For the next two years, we became stronger and stronger as a couple. Rachel was good for me, made me better at school and helped me to realise a potential of which I was unaware. I was good for Rachel in helping her to be more relaxed and outgoing. She became less nervous and more likely to be a part of conversations with others. As we came up to our final school-leaving exams, we both were sensible and studied properly, even though I’d rather have spent more time with her. Rachel’s final exam was two days before mine, so she had a Tuesday and Wednesday free, before meeting me on Thursday night.
On Thursday night, we went out for a meal. Nothing fancy, but not fast food either. Rachel seemed a little preoccupied, but I thought it could be tension following the exams, especially if you think you have mucked up. She said it wasn’t that, but she certainly wasn’t her normal self. We went back to her house and saw her parents before we went to her bedroom for the night.
I never got tired of seeing my beautiful girlfriend, dressed or undressed. My cock appreciated her too and as it was my turn to choose the first position, I bent her over the bed and took her doggy style up her pussy. She always loved feeling my balls slap against her ass. She didn’t cum with me this time, which I always tried to make happen, and as she turned round, I saw she was crying. If ever anything can turn a moment off, it’s seeing your girlfriend crying.
“What’s up, Rach?”
“I’ve let you down,” she sobbed.
“I’m sure you haven’t. What do you think you’ve done?”
More sobbing, so I held her close to me.
“I was with another guy on Tuesday, and with a different guy on Wednesday.”
I felt sick. I thought that this was the end for us, because she was going to leave me.
“So, you’re breaking up with me?”
“No, no! I don’t want to, but you’ll break up with me, because of what I’ve done”
I sat there for a moment, mind just reeling. Was I going to break up with her? I didn’t want to. Did I still want to be with her? Definitely.
She broke the silence
“Say something, please, Tim. Don’t hate me”
“I don’t hate you. I couldn’t hate you. I love you. I’m just very surprised, confused. I suppose, why, Rach?”
“I do love you, Tom, but I just keep wondering about sex with others. I’ve only ever been with you...”
“ ... and I’ve only ever been with you too!”
“But don’t you ever look at someone else and wonder what they’d be like? I do. I still want you. But I want to go with others too.”
I was totally confused. I couldn’t get my head round whether that meant we were a couple, or just friends with benefits. She was the best thing to happen to me, and I didn’t want to lose her, but I just couldn’t see what she really wanted.
“I don’t want to break up with you, but you want others as well as me?”
“I want you all the time. I’d like to add other people from time to time.”
“Just guys?”
“No, of course not. You’d have other girls, maybe we’d share other people. But you and I would still be a couple. Nothing else would change.”
Nothing would change, she said. Still, my head was spinning. There were so many thoughts going round and round in my head, but weirdly I wasn’t feeling upset or repulsed. I know I felt relieved that we weren’t splitting up, but I worried how I might feel later on.
We decided to go to sleep and to talk again in the morning. Sleep though, for me at least, didn’t come easily and my mind was running at 100mph with thoughts. I woke up at about 4am, having dreamed about her being fucked by another guy with me watching. I was rock hard. I think that was the point that I knew I could give this a try, but I was worried that my thoughts might change over time. I wasn’t really the jealous type, but this might test my resolve.
We started talking again about this when Rachel woke up.
“So, you need to tell me more about how you want this to work. I don’t want to lose you, but I need to understand”
“I used an app to find guys. I chatted to lots but chose the two I liked best. I met both guys in public and had a drink with them. That gave me the chance to say no. But I didn’t.”
“Where did you go?”
“To a hotel in town with one, and to the guy’s flat for the other. On the app, you can get it to send a message to someone if you don’t say you’re safe by a certain time. You’d have got a message, but as I was safe, I cancelled it.”
“What were the guys like?”
“The first one was in his mid-40s, the other one well into his 40s”
My cock twitched at that.
“Some of the ads wanted threesomes or other couples. Some of the guys wanted you with me. I’ll show you”
She showed me her ad on the app. She’d had to verify her age and got a tick mark to prove she was real. She showed me the ads of the guys who had fucked her. The older guy wanted threesomes too. We kept browsing. Most of the ads were from older people, mostly couples and single guys. Some of the few ads from single women seemed obviously false.
“How many replies did you get?”
“145. In one week!”
“Did you reply to all of them?”
“Yes, even when I was only saying no”
I searched for women looking for guys. There weren’t many ads.
“Now try couples looking for guys”
There were more ads, but when you searched for couples looking for couples, there were hundreds to read.
“I want to change my ad from a ‘girl looking’ to a ‘couple looking’, but you’ll need your passport to verify with them.”
We got dressed and went downstairs to have some breakfast, before going to my house to find my passport. My parents had gone to work, so we had the house to ourselves. Filling in the profile details was fairly easy.
- Age immaterial.
- Couples preferred, but will consider single people of either sex
- Partner will always be present
- Can’t accommodate but can travel
- Genuine and open couple
Then it asked about full or soft swap, same or separate rooms. We weren’t sure about this, so said yes to everything. We borrowed Dad’s tripod and took some pictures of us both, clothed and naked, submitted a copy of my passport to prove I was old enough, and after about 60 minutes, our profile went live. Now we had to wait for any interest.
Bing! The first reply arrived within 15 minutes. Unfortunately, this guy was of no interest to us. Only wanted Rachel, on her own. We had several messages like that. Everyone got a polite reply in return.
We went out for a walk and to a pub for a couple of drinks. We could tell we were getting replies to our ad but we weren’t checking them whilst we were out. At my house, my parents were rushing to get ready to go to some party that evening, so we only saw them briefly. Once they’d left, we opened up the app and to our utter amazement, we had over 100 messages in the last few hours. We read every single message. Some were rejected easily, but those were usually because they wanted us apart. A couple of replies were just weird! But that still left over 50 replies which we were taking seriously. One reply which took our eye came from the second guy that Rachel had been with, earlier that week. Rachel was keen to meet him again, and I liked the idea of sharing her with him. We messaged him and he replied almost instantly, saying we were free to visit him that night if we liked. We liked so I ended up using my recently passed driving licence and borrowed Mum’s car for the journey to his flat, about 4 miles away.
I was excited, nervous but looking forward to the evening, totally unexpected as it was. The flat was in a modern block of 4 floors and his was on the top floor, with views out towards the city centre. On arrival, he seemed nervous about meeting me with Rachel, so I made a silly joke about us having things in common – like sleeping with Rachel. That broke the ice, as did his equally cheesy reply that they didn’t do any sleeping! He was, as Rachel said, well into his 40s. Divorced for a few years, no other family, and he worked in some legal capacity with one of the local councils.
We moved into his bedroom, which had huge picture windows. It was a lovely sunny evening, and being so high up, there was no danger of people seeing in. We all undressed quickly, and I looked at his body. He had a bit of a tummy, but nothing large, and it was obvious that he looked after himself. He was about 5’11 tall, where I’m a little taller, but his erection was huge, both long and very thick.
He didn’t want to play with us both, and I wasn’t sure I could play with another guy anyway, but he loved the idea of me watching and sharing my girlfriend. She kneeled in front of him and started to give him a blow job. I saw her suck greedily on his swollen penis, licking its entire length and paying particularly to the angry looking glands. She was good at giving BJs to me, and I knew how the guy would be feeling. A glance at his face showed me I was right! He started to face fuck her as he got nearer to cumming and then shot his cum into her mouth which, as always, she swallowed.
The guy explained to me, as if it were needed, that he liked a blow job before sex as he lasts longer during the fuck. The two moved onto the bed and he opened Rach’s legs and went down on her, a position I’d been in just a few hours before. The first time I ever licked her pussy, she found the sensations hit her in a very special way and it’s an easy way to bring Rachel to orgasm. It was the same with this guy this evening. She ended grinding her pussy into his face.