I opened the door slightly and the steam from the hot water rushed out and brushed my face and teased my nipples. I stepped in, behind him slowly and ...hut the door. He was still oblivious to my presence. I placed my hands on his shoulder blades gently and ran them down his back. He looked over his shoulder, saw it was me and smiled. He stayed looking at me, I continued. I very softly kissed his shoulder blade, my upper lip protruding over the lower, in a slope of subtle sexual invitation. I ran. As soon as he returned home from college I asked him if he wanted too. Of course mum, when?Tonight okay? Get yourself an early shower and I'll get a take-away ordered so we can start early.Dinner over and a quick freshen up and we were ready Up in the bedroom we were both naked, Michael's cock aroused and erectMichael I want to try something different, okay?'Why not', Michael said 'what did you have in mind'Well I haven't mentioned it but I like a little BDSM, are you shocked?No not at all, I. I gasped as it hurt. He slammed into me hard and repeatedly. It hurt, but now it was hurting in a good way. He grabbed my hips and thrust hard one last time and thrust hard. I felt him blast his load into my ass. “You’re very good.”“Thank you,” I said. I just thanked a man for violating my ass.“How long will your parents be gone?” Darren asked. “At least until Monday,” I said. It was Friday. “Good when your sister is asleep comeback here for a real show,” I snuck back into the garage and put on. If anyone was to look at our family from the outside they wouldnt know anything was different. We went to a local church, I participated in Sunday school and church events, and until my boobs got too big, I was a swimmer and a runner, a part of the local high school teams even though I didnt go to school there. Even though I was home schooled, I had friends I could go see, but I never said anything about what happened inside my house. I didnt think it was wrong or think it was anything.