It was NYE and my partner and I and four other friends were going on a boat in the harbour. Right near The Harbour Bridge. The day before, we found out there would also be 5 backpackers with us. A mother with her two daughters and a married couple ( friends of one of the daughters ). They were lovely people. We got on board about 12 midday. So sitting in the sun and drinking and swimming and eating we were having a great time. Long story short, I went downstairs to cut up a salad and the wife of the married couple was down there. We started talking and she kept telling me how gorgeous my eyes were then she leant over and kissed me. I was a bit shocked at first but then I went along with it. As we kissed I played with her tits. I pulled one out of her dress and sucked on her nipple. My hand slipped up her dress to find she had no undies on. Her pussy was so wet. We heard someone coming so stopped. Later that evening I found her and her hubby on top of the boat. They enticed me up. I wasn't going to say no - she was hot - and she wanted me. I climbed up there with them. Boy what a night. We fingered each other, even her husband fingered me. I wanted to eat her pussy so bad but she wouldn't let me do that. I can't remember a lot about it but I know it was horny as. We both sucked on her husbands cock, then she rode him for a while , while he fingered me. Then she climbed off and told me to get on, so I did. A little later my partner found us. He climbed up there with us. He played for a little bit but was too smashed so he went downstairs and left us to it. We played for a bit longer then they said they were going to bed to finish off. I wasn't invited which was really disappointing but I had horny fun leading up to that moment. I never in my wildest dreams would have thought that something like that would happen on our harbour NYE.