I sensed what was going on in her mind. I prepared tea for both of us & served, she said she was feeling too hot to have tea.I offered her cold drink....To which she winked & told for some hotness cold drink is not enough. I asked then what she wanted to which she said don’t be so naïve & innocent, and she kept her hand on my thighs. We both were breathing heavily which was only sound audible in the room. Her touch had given me an instant erection. She saw that & smiled.Then I kept my left hand. I rubbed her legs all the way to the top and when I got near her pussy she said No…Im sore…..but you can fuck my ass! I almost passed out. I said Really! Honey she said… after allowing me the most incredible night of sex how can I not repay you. She rolled to her back, pulled up her skirt and placed her hose covered heels high up on my shoulders. I moved in and rubbed the head of my dick onto what was now a dry and clean and beautiful pussy. I lubed up with some spit and pushed against her. I lifted her hips up a little higher and gently spread her ass cheeks wider and lapped around her bung hole. I penetrated her rectum with the tip of my tongue and I heard her breathing become shallow and labored. I slipped my tongue in as deep as I could and she went wild. Her body shook with convulsions as she had yet another intense orgasm. I held on to her hips with my tongue buried in her ass as she bucked and trembled. Cora had totally relaxed and it took her awhile to realize that the. “Did you ever grow up?”I couldn’t help myself, I started laughing when she said that and started choking and coughing. Being the caring sister that she was, Laura just sat, laughing at me.“No, I’m okay, don’t worry your pretty head,” I said as I stopped coughing and took a sip of my coffee. Laura just raised an eyebrow again.“I was smirking because of comments like that, that’s something mum would have said, and she would have clipped us both around the ear for the stubborn staring match we.