I worked my finger around a bit before pulling out and inserting the plastic tube. I opened the valve and let the water flow. The bag was half empty w...en Cindy yelled for me to stop. I assured her that she could take more and began rubbing her stomach. I looked down and was surprised to see Cindy’s naked tits hanging down as her top had fallen open and she was braless. Cindy was grunting and sobbing and saying she couldn’t hold it any longer. I stopped the flow and told her to squeeze it tight. “Probably on my own,” I replied.“Oh, that’s a bit sad; you really should find someone to go with you. It’ll be more fun.”“Like who?” I asked. “All my mates are married and their wives won’t like the idea at all.”“Well, I could go with you...”“You must be joking, Sis. Why would I want my step-sister to go on holiday with me?” I laughed, thinking it had to be a joke.“I was only saying. Keep your shirt on, Sean,” she replied, clearly a bit put out nevertheless.“Sorry, Pen,” I answered earnestly as. ”“I’m thinking about what’s to come next. You haven’t told me what you have planned.”“I want it to be a surprise.”“What would you like me to wear?” she asked.“Nothing. Enemas are best taken in the nude.” I drove a bit further. “If we’re going to engage in any sort of rough play, we should agree on a safeword.”“Tallahassee,” she replied.“Tallahassee?”“For some reason the word came into my head.”“You know, if you say the safeword, everything stops. No questions, no arguments, no guilt, no fault.. She wasn’t very old either, in fact she didn’t look much older than us. She was really pretty and she had nice brown hair in a ponytail hanging down her back to her waist.She kept an eye on us as we grabbed our fishing poles and equipment and then let our bikes fall to the ground. We went downstream a bit but not far enough where we couldn’t keep an eye on her.She sure was a lucky fisherman. She kept catching fish and releasing them while we didn’t catch anything. Eventually we went back to her.