It felt, the vacuum inside her cunt is sucking my penis into a dark wet hot hole. I stopped for a moment. I took out my penis and it was required othe...rwise I would have spurted out at that moment only. I pulled her up and asked her to turn into doggy position. Her big ass was in front of me now. I need and smacked her ass really hard. She seemed to like it.I smacked it again it was so hard blow that I could see the red marks on her ass. I again inserted into her. I started stroking again. Meanwhile I reached a state where I couldn’t control my ejaculation any more and I ejaculated a huge load of sperm in to her womb. We were exhausted and slept for about an hour. Again woke up due to some one knocking the door for lunch delivery.She wiped her pussy and my tool with her hand napkin and we dressed up in the same way. Opened the door and had lunch. After that I got a crazy idea to fuck her ass hole. I asked her if she has coconut oil in her bag(Funny to ask a mallu girl for coconut. I was at that time of life when I was preparing to leave the safety of the educational system with a degree that assured me of suitable employment unless I elected to sponge off my doting mother and prosperous stepfather for some post-graduate work at a near-by university and still live at home like the proverbial jerk most people opined that I actually was beneath it all.It never seemed like a sin of Taboo where my step-sister was concerned because we had only met each other a few months. On Friday afternoon she called me with a computer problem. I said I would come over right away and she said "Give me 5 minutes I need to change" When I got there she had the lowest neckline shirt you can imagine, with her 38C cleavage and I could see nearly all of those tits. She said her husband's overseas till next weekend - hint - I kept looking at her cleavage while I was talking to her fixing her network. When I was done she thanked me and I decided this was the time to push my luck after.