Since my parents got divorced I stayed with my mom but spend all my vacations with my dad. I like it more when when we go alone, just me and him but sometimes he brings a girlfriend. Last year it was amazing, it was only the two of us and this happen. I got horny and start to suck my dad's cock in the water, then guys started to come close and my dad shared me with them. I even got fucked from behind while in the water and sucking my dad's dick. I loved it and they didn't know we were father and daughter.