When I got home, I went for a bath, I wanted to make sure I was not sweaty for our meal. I got into the bath and started to wash myself. As I was cleaning my cock, it started to get harder with me thinking about what had happened in the afternoon. The more I thought about it, the harder I got, and soon I was wanking myself faster and faster. Within a few minutes I was spraying a jet of my hot cum into the bath water. I sponged myself down again and got out of the bath and got dried. It felt good that I had cum twice today, and it was not even dinner time.

I went to the bedroom and got dressed in a new pair of jeans and t-shirt, Mum had given me them for my birthday. I then went down to join the rest of the family.

Mum was wearing a skirt and blouse, (I could see her bra through it). Katie was wearing a dress, she looked prettier than I had seen her for a while. Kelly was wearing her new blue dress, she looked incredibly sexy. She had her hair tied up, making her look very sophisticated. Mum said dinner would be ready in about an hour, so we went and sat in the lounge, listening to music while we talked. Mum asked if I would like a drink, she gave me a whisky and coke. She then offerred me a cigarette, saying that she knew that I had been smoking for a while.

After about 20 minutes, Dad appeared at the door with a birthday present for me, it was a new SLR camera. When he saw Mum ank Kelly I could see that he was getting excited. He asked if he could stay for dinner, but Mum said NO, and he eventually left, just as we went to the table for dinner.

Dinner was very good, Mum gave us wine with it. After dinner Mum asked us what my plans were. I told her I had not really thought about it. Kelly suggested that we go to the lacal pub for a pint, (I had been getting served for a few months), Mum thought it was a good idea, so I agreed. I had presumed that it would be just Kelly and I, but when Mum put Katie to bed, and started to get ready, I realised she was coming too. I asked her what about Katie, just as the doorbell rang, and the girl from next door was there, asking if she was on time, (Mum had organised for her to babysit Katie).

10 minutes later a taxi arrived to take the 3 of us to the pub. It was a good night, but I only had a few drinks, as I was not too used to drinking. Kelly did the same, but Mum had quite a few, as she was hetting chatted up by some of the men who were there. It was good to see her having some fun for a change. WE left about 10.20pm and got a taxi home.

When we got home the babysitter left, then Kelly put Mum to bed, while I went up to my/our bedroom.I got undressed and got into bed, and switched on the tv as I studied my new camera. A few minutes later Kelly came into the room. She asked if I had enjoyed my day, I told her that it had been great, she then told me that it was not over yet.

Kelly came over and stood in front of me, about 4 feet away, she asked if I thought she looked pretty, I told her I thought she looked amazing. She said do you like my dress, I told her she looked great in it. She then said, your birthday present from me is under it. She unzipped it, and let it fall to the floor, she was standing in front of me in very sexy blue bra, panties, stockings and suspender belt. I could feel myself harden looking at her. I could see that she had a wet patch in her panties.

Kelly then said that she felt she had been a Virgin long enough, and asked if I would do something about it. She told me to move over and got into bed with me. She reached down to my cock, and told me how much she loved me. I told her I loved her too, as I reached over and started to rub her breasts through her bra. Her nipples were hard. I reached down and started to rub her pussy through her soaking panties. As I reached under her panties, I could tell that she had trimmed her pubes again. She was wanking me quite fast by now, so I asked her to slow down.

I asked Kelly to lie on her back, then I knelt between her legs, she looked beautiful lying there, she was still wanking me while I was between her legs. I pulled her panties to the side, then lowered my head so I could lick her pussy, it was so wet, and tasted so clean and fresh. I continued to wank myself as I licked her pussy. 

Kelly then told me it was time, I lay on top of her, and rubbed my cock against her pussy lips, it was amazing how slippery it felt, she told me to put it into her, I slowly started to slide my cock into her wet pussy, it felt really tight, but good. (I was thinking as this was happening that I had never thought that my first sex would be with my big sister). I had managed to get about half of my cock into her, when she told me it was hurting her, so I stopped sliding it in, to give her a chance to relax, soon she told me she wanted all of me in her. I started to slide my cock further into her, until her pussy finally contained all of my cock.

I only managed a couple of dozen thrusts into her before I filled her with my cum. She then pushed herself up and kissed me, a proper kiss, tongues and all, and told me she loved me so much, and hoped that we could do this again, I told her I hoped we could. She then asked if I would be her "secret" boyfriend, I told her that would be fine...