Fate on christmas night

This is my first story. It all started on a chrismas nite with my elder sister jasmin. We celebrated that nite with family and frnds in a grand style. My elder sis jassu who is 4yrs elder to me was in a beautiful blue saree was looking like a angel that day. I never really had any feelings of this sort before untill this magic happende on the fateful nite. After the party we were actually to drop my sisters dfrnd sanju to her house, so my sister who was in her saree wanted to change her dress before we left. As we had many guests in our house she couldnt find any room so she asked me that she would be using my room which i obliged because that was not at all aproblem for me. But this is the incedent which had a huge impact on my life thereafter. As she was in a hurry she immediately removed her saree and petticoat infront of me without even waitingfor me to leave the room. I thought of avoiding contact but couldnt really do that as she was simply looking like a angel in her inner ware. She was wearing a light blue panty a silkyone and black bra. She was looking amazing with beautiful round breasts somewhere around 36. She is not that thin she would be around 30 in waist with a little stomach coming out but definately sexy. I kept looking at her while she was changing her dress but she didnt really minded that. She changed into her salwar kamiz a yellow one and we started to her frnds house, this was the time when incestous feelings started in my mind and i was feeling like having sex with jassu very badly. We went to sanjus house and her parents were waiting out for us, as her parents were about to leave to railway station to leave to banglore. Sanju took my car to drop her parents to the railwaystation and me and jassu were waiting in her house.Jassu told that she is tired and went into sanjus room and i was waiting in the hall watching tv but couldnt really concentrate on anything else. The thing which happened a hr ago was making me feel restless. I called sanju to find out when will she be back she said that it would take atleast 2hrs as the train was late. Suddenly i could hear some sounds from sanjus room where jassu was taking rest i slowly popped into tha room. She was watching porn to my surprise. I entered the room silently it was pitch dark and she was restless as she is completely got herself involved in watching porn and she didnt even notice me. I realised that she was fingering her pussy with one hand and was browsing with the other. Suddenly she turned back looked at me and to my surprise she was not at all ashamed of what she was doing. I too got aroused by watching wat my sister was doing. I sat next to her and asked her on wat she thinks of having sex wit me. She was so aroused that she didnt evn reply me but just started kissing me. I then started pinching her nipples and she was getting more aroused. I could see her round beautiful breasts in the dim ponr lite. I took off her dress and was kissing her all over then i enterd the most exciting part of her body the pussy. It was completely wet by the time i removed her panty. I was a cute little bushy hairy pussy everyone would dream about. I started licking it and continued to drink the pussy juice. Then i took out my dick which was rock hard and about to explode. She wanted to give a blowjob but i was more interested in inserting it quickly into her cute hairy pussey which she obliged. The next 20min was best time in my life. He had a very passionate sex for the next 20min and i cummed into her pussy and both enjoyed it a lot. We took rest in each others arms and were ready for another encounter in 10min. After sometime sanju came back and we left for our home. We had one more session in car on way back home and many sessions after that. I later found out that she always had feelings for me and the xmas dress change treat was a part of her plan to make me aroused. We enjoyed our incestous relationship for few yrs untill she got married and moved back to us.