Nobody can remember who first suggested masturbating together, but this year it's become our little treat after games class every Wednesday. We go to a private school with a massive sports field. It has a large changing block split in two halves by a narrow corridor. Our lockers and showers are to the left, and the boys have their own to the right. The games teachers have a policy of never entering the pupils' changing bl...

Once a week for most of the school year, the boys had been squeezing into our changing rooms for what they called Wank Wednesday. It was exactly what it sounds like. After games class, we'd been watching each other masturbate. It was originally a female-only group, but the boys were allowed in at the suggestion of my friend Tiff, and it turned me on a lot. Fortunately, the teachers always kept their distance so we had som...

With a huge thanks to Jack, four of our changing room group were able to keep meeting and masturbating during the summer holidays. Every Friday night, his big sister Samantha let him use her flat while she was out at the clubs, allowing him and his friend Steven some time away from their parents. Our fourth member was my best friend Tiff. She had originally said she wasn't keen because she was more interested in having se...

Steven was sitting on the living room couch being masturbated by Jack while Tiff and I gently sucked on his nipples. The boys turned to kiss each other and Tiff ran her fingertips over one of my breasts. Steven was just about to orgasm, so I lowered my head from his nipple, ready to catch it in my mouth. Unexpectedly, Samantha walked in, and she spoke before we knew she was there. 'What's all this, then?' We all turned to...

The five of us were masturbating in front of each other. 'This is weird,' Jack kept saying. 'This is really weird.' 'And yet you're still here,' said Samantha. 'Go out the room if you don't like it, or go home.' Jack and Samantha were siblings. Less than an hour earlier, she'd caught us all playing together. Our sessions always began with solo masturbation and trying to hold ourselves on the edge of orgasm. But by the tim...

Only the previous week, Samantha had found out we'd been secretly using her place for our masturbation group – and that her little brother had organised it. Instead of freaking out, though, she'd ended up joining us and had even helped Tiff and I to buy our first vibrators. Every session started off with solo play. It was during that part when Samantha made an announcement. 'Tiff and me, we're now a couple.' 'What?' I sai...

For about a year, I'd been part of a mixed-sex masturbation group with my classmates, meeting up every Friday to pleasure ourselves and – more recently – to have sex with each other. But for the first time, I had to miss a week because my parents were taking my brother and me on our annual holiday. They always timed it around the time of our birthdays. This year, Ryan had turned sixteen about two weeks before I turned eig...

Our weekly masturbation sessions had a really nice vibe to them. They always started with solo pleasure while watching each other, then we would naturally pair off and have sex. Samantha and my best friend Tiff were now girlfriends, while Jack and Steven were boyfriends. I'd recently brought in Thomas to make up an even number of six. We weren't a couple, but we'd had sex a few times. Occasionally, some of us would play w...

While on holiday with our parents, I needed to masturbate badly, but there was no privacy. I ended up asking my little brother if I could do it while he was in the room. This had evolved into other sexual contact up to and including oral – but not penetration. Once we were home, I expected us to put this strange period behind us and go back to being like any other sister and brother. Yet we'd broken through a barrier and...

At the start of the summer break, our masturbation group left school forever. Unfortunately, the members were moving to different colleges all over the country, so the dynamic of our group had to adapt as well. Steven and Jack were no longer a couple, so I'd suggested Steven and Thomas make a go of it as boyfriends. It seemed a logical step; they'd had sex before and enjoyed it, plus they were at colleges in neighbouring...

Steven, Thomas, and I began our first threesome as boyfriend-boyfriend-girlfriend, nicely cementing our new relationship. By habit, we always started with masturbation. They then placed their penises together and Thomas gripped both of them, stroking them up and down. They kissed with tongues, and I took the chance to run my hands gently over both their bodies: from their chests, down their arms and legs, then back up aga...

College had ended for Christmas and I looked forward to going back to my parents' house to see my siblings. Ryan was younger than me by two years, and we'd met up during term-time but not very often; Rachel was six years older than me and I saw her even less. Ryan and I had started a top-secret relationship, stemming from a caravan holiday. There had been no privacy to masturbate so we agreed to do it in the same room and...

In our second year of college, Fiona and I decided to move out of shared halls and into our own place. We found part-time jobs – which happened to be at the same bar – because the new flat cost more than what we were paying before, but at least we were now the only occupants. After moving in, we held a housewarming, inviting the rest of our masturbation group. We were looking forward to it so much that we both held off or...

Fiona and I had moved into our own place, and we'd invited the rest of our masturbation group to the housewarming. The previous night had been the most raucous session yet, with threesomes, strap-ons, and spankings. We'd all tired ourselves out and gone to bed early. But in the morning, we were up and masturbating again, and Tiff wanted to make the most of her time. She asked if it would be all right to borrow Steven and...

At around four o'clock, I met my little brother at the railway station. I checked around me, and when I was reasonably sure there was nobody we knew, I took a calculated risk and kissed him quickly on the lips, which turned me on. The first question out of his mouth was, 'Where's Fiona?' 'Ryan! Not even a "How are you?"' 'How are you? Where's Fiona?' 'You're a cheeky boy, aren't you?' I helped him with one of his bags as...

My brother had come to visit for the weekend. After our meal, he squeezed onto the small couch between my flatmate and me, with his arm around her. She was subtly flirting back. Us ladies shared a bedroom, and later that evening, he would be sleeping on an inflatable mattress between our single beds. Ryan and Fiona weren’t a couple, but they’d had sex a few times. I'd already said I didn't mind them doing whatever they wa...

‘Are you enjoying yourself?’ I asked Ryan. ‘Yes.’ ‘That’s about the tenth time,’ said Fiona. ‘Leave him alone.’ All of us were masturbating with Steven and Thomas in their new place, and this was the first time Ryan had joined us. It had taken a long time for the boys to arrange their housewarming, so it was great to see them again. We were also supposed to have Tiff, Samantha and Jack. They were driving, but they’d calle...

‘We’ve been going over this for ages,’ I said. ‘Yes, he’s my brother; yes, we’re unusually close.’ Everyone was in the boys’ living room, either naked or in underwear, but Thomas had put all his clothes back on. ‘You’re not just close. You have full sex with your own little brother. He gives you orgasms, he puts his sperm in you.’ ‘It hardly ever happens. Most of the time we just masturbate together. It’s only if we’re bo...

Fiona and I had a one-bedroom flat, and my brother had been secretly staying with us. When the landlord found out, we were given notice to leave. We were almost certain this wasn’t allowed, but we needed a bigger place anyway, so we didn’t fight it. With just three days remaining, we found a new place and hosted our first masturbation party with other group members, about two weeks later. Tiff, especially, couldn’t wait....

In our new flat, it was difficult to find the optimal arrangement of beds in our shared bedroom. We settled upon a single and a double bed next to each other, with a narrow passageway between them. I would sleep in the single and Fiona liked the far side of the double, so my brother would be between us. Although we would interact with each other sexually, there were times we would simply watch each other masturbate. Ryan...

Ryan and I were waiting for our older sister. She was working in the area and had invited herself to stay with us overnight, telling us she’d arrive by 6 pm. By 9:30 pm, she still hadn’t shown up and wasn’t answering her phone. I didn’t bother leaving a voicemail. I felt the ten missed calls already sent out a clear enough message. I accidentally let out a grunt of frustration. ‘No luck with Rachel?’ asked Fiona. ‘Nope,’...

When Thomas found out I’d been having sex with my brother, he didn’t want anything to do with our masturbation group. Steven had also reluctantly stayed away because Thomas had made him choose between him or us. At Fiona’s suggestion, it was time to pay the boys a surprise visit and find out whether we could make amends. The rest of the group were enthusiastic and wanted to come along, although Tiff had to work. Normally...

Over the years, the members of our masturbation group had interacted sexually in all sorts of combinations. One-on-one sex happened every time we met, threesomes were relatively common, and everyone had watched everyone else masturbate and have sex. But some members had never been together before. Apparently, on a whim, Tiff suggested to Samantha that she and Thomas should try having sex. It was a suggestion she immediate...

With university finally at an end, Jack had arranged a special masturbation session for the group. For one evening only, we would have exclusive use of the gym where he worked. As soon as we were inside, he locked the doors behind us. ‘This is the reception desk, staff room there.’ He led us around a corner. ‘Weight machines, a few treadmills. I’ve set up all the adjustable benches and there’s a load of towels at the back...