I pushed the ladder back, got on the chair and closed the hatch. ‘Thank you so much Bill that was a great help. Come and have a cup of tea and a sli...e of cake … its Lemon Drizzle cake’. How could I refuse?She made the tea and cut two slices of cake. We chatted in the kitchen and she started to tell me about her hubby who had passed away some years earlier. She told me how lonely she gets and how much she still missed him. I said I imagine it can’t be easy being on your own and if there is. You grew up.. a lot." She gave me a warm smile and hugged me. Since I was still lying down when she hugged me, she was positioned as if she was about to straddel me. Forgetting she was my sister, I could only think about her breasts on my chest and her crotch pressing against mine. I used all my strenght to not get a boner.When she got back up, dad called us down stairs. When we got there he said he had some important news. "Kids, I have a date tonight, my first date in years. I'll be out. I prepared tea for three persons and took it upstairs and shook Koushik to wakefulness. Both Ratna and Koushik were still huddled together, both still naked.Koushik on waking up and finding me in the room was embarrassed and picking up a towel rushed to the bathroom. I fondled Ratna’s tits and gave her a kiss.She smiled and said, “Geeta, it was fabulous.”I smiled and said, “Yes my dear Ratna, and I congratulate you for being able to seduce Koushik.”We kissed again. Ratna got up, retrieved her. . I started to take some cooking from the kitchen applied it to her pussy and some to my dick then pushed it, she started to scream in pain ahhhh … Only 2 inches dick went and I thrusted it more my 7 inch meat rod full submerged into her pussy lovely hole of fuck.. Aaaaaa yaaaaaa ohhh.. After inserting the whole rod I started thrusting like a mad man she started to move with me in pace and we are fucking like animals her moans are making me mad … Drilling her deep she says(enaku ne tha.