I was asked as a professional photographer to teach some lessons for the local college/night school. Although it was council backed, there was not a lot of money in it, but I was keen to pass on a bit of my knowledge, so I agreed. The college had a sort of schedule they wanted me to follow, but on the first evening it was clear that the knowledge levels were so wide I would have to start at a much lower level than that set by the college so the lowest level people understood what I was talking about.. They were all adult students and had a wide range of age groups from early twenties to a woman in her sixties. I started by asking what they wanted to get from the lessons and there was a wide range of expectations and to meet them all those with a lower knowledge would require extra lessons and when I suggested that I was prepared to give some free lessons they jumped at it. I was surprised that there was more women than men as I had expected a group of men just wanting to take porn pictures. I did what I could in that lesson and arranged a date for those that needed it to come to my studio on the Wednesday night. The whole group was fourteen students and this smaller group was six students four females and two men. Two of the women were in early twenties, and the other two who were obviously friends were early forties. One of the men was in his thirties and the final member was in his fifties. I had set up a lesson and we made good headway that would allow the next official lesson to work much better. At the end of the session we agreed on another free session and agreed areas that needed covering. The next official session went well and we were soon having the next free lesson. The older man had dropped out due to health issues. I had linked my digital camera to a large TV so when I changed settings they could easily see the results. As we discussed framing a subject and how the foreground sits into the background I needed a subject to demonstrate it and I had some still life objects to do just that. Gina, one of the twenty something women asked some questions and I explained that it was easier to see with a real life subject. she was on her feet in seconds and posed with the still life objects posing a rather sexy pose. The demonstration worked well she soon took to her seat again. It was some while later that another question needed a subject and Shona, Gina's mate stepped forward to be the subject and she deliberately struck and even sexier pose. I don't know about Bill, the other man, but I was slowly getting an erection. It wasn't long before the lessons came to a close and the two older women walked away as Bill came and asked a final question. I turned to get my camera to demonstrate what I was telling Bill to see that Gina was stood in the frame of the camera with her tits dangling. My cock jumped at the unexpected view on the screen as Shona had zoomed the camera into Gina's tits. Shona seeing me looking at the tits on screen asked if that was the best way to frame them or did she need a softer focus. It wasn't my first time taking naked photos of women, but this situation was a first for me. As I took my gaze from the screen to see Shona with my camera she also had her tits out and was wriggling out of her skirt. Now stood in just pink panties she walked over to Gina and posed with her. I was soon at my camera taking shot after shot as the two posed themselves for the camera. Bill was stood with an erection that made a large tent in the front of his trousers. As I continued to snap away both of them were in just panties as they had removed all their other clothes. Then Gina suggested that Bill joined them. Wild horses couldn't have prevented him from joining them. The two of them soon had his shirt and trousers off and were taking up some pretty wild poses. Needless to say Bill was loving it, especially when Shona had her hands on his Y fronts and was easing them down. Once they were off he assisted both women to remove their panties. Then with no prompting Shona was on her knees sucking Bill who was old enough to be her father. As I took several more shots Gina came to me and was taking my trousers and pants down and sucking my cock. All thoughts of photography soon disappeared as Bill lifted Shona to her feet and bent her over and slammed his cock deep into her pussy. The loud groan caused Gina to stop sucking and look at her friend who was now getting a pretty serious fucking. Not wishing to be left out, Gina stood and bent forward offering her pussy to me. It was just seconds before I was slamming into Gina's pussy. It was Bill that suggested that we swap and soon it was Bill slamming away at Gina whilst I did the same for Shona. Bill and Gina came first and Shona and I weren't far behind. Then we were all rearranging our clothes and going home. The following day Shona came back into the studio and thanked me for the previous evening and told me that both of them had fancied me. Bill was lucky that he got some fun by default. She said the following week they would pretend to leave and then come back. That's exactly what happened. I thought that I was going to get my first threesome, but it turned out that Gina was on her period so I only got a bit of a blow job from he,r but Shona made up for it as I fucked her all around the studio. We were practically up to where I needed them to be so the following week should have been the last week. Well it was for the two older women and Bill, but Gina and Shona again returned and I had that threesome that I was looking forward to. They asked if they could if they could continue to come around. I was quick to say yes. Another eight week on, the main course ended with all the students up to a good level. As for Gina and Shona they continued visiting my studio for another three years before Gina stopped coming saying her and her husband wanted children and she was keen to make sure it was definitely his and not mine. Shona continued for another year or so before she also stopped for the same reason. I thought that was it and it was all over. How wrong. About two years later it was a wet morning and I had little work to do and was about to shut up shop when in walks Gina. She was a little thicker set than the last time I had seen her, but was still good looking and sexy. As she shut the door she locked it. "I've been thinking about this for quite a long while," she told me as she started to strip her clothes off. Seeing her stripping I quickly followed suit and we were soon shagging like we had never stopped. Afterwards she was telling me that she now had two children as did Shona and they were both climbing the walls wanting more sex. I told her I was always available. I could see her scar from the cesarean she had for her second child. I asked where the kids were and Gina informed me that Shona was looking after all four of them. Then Gina told me that Shona would see me next week while she looked after the kids. This arrangement lasted for almost two years when Shona fell pregnant again. This time she had no idea if it was her husbands or mine. She told me that she intended for him to raise the child without knowing about me. We had a few more months before she stopped coming. Gina came a few more times and then she also stopped. I often wonder what became of the pair of them, and was anyone else getting the pleasure of their sexy bodies. A year later I married my girlfriend, but I miss the excitement the two of them brought me. I still have a few pictures of them for keepsakes, but I miss them.