I slowly began to fuck her and she was soon thrusting her bum back at me. At first I was holding her firm against my thrusts by grasping her hips, but...then I slid my arms around her and held her with one hand cupping her tummy and the other on her cunt. I thrust some fingers inside her pussy and rubbed her clitoris with my thumb and this action combined with the thrusts of my cock soon carried Mum to her orgasm. I reached my own climax at about the same time and I clung desperately to her,. "I can see that," I said. "I'm not going to order anything," I said. "Maybe coffee," I added."I thought you said you were joining them for dinner," said the puffed up man with the pencil mustache."I said I was waiting for them," I corrected."What is your business with them?" he asked suspiciously."Well, I'm her boyfriend and her sister wanted me to stop by and check on her."It was the truth. Which is why I said it that way. Can I help it that he misunderstood and thought I was stalking one of. So I became friends with you both, we did everything together as friends and nothing was ever mentioned at first about your sex life. But we became closer and closer (Or should I say You became closer and closer to me).You began to open up to me and tell me all your desires and your problems. You said that he hadn't been intimate with you for a couple years and that you needed that closeness but he never gave it to you. I filed that bit of info away to use later. I always told him most of what. I think she had just propositioned me, or was working up the nerve to discuss the possibility. I needed an appropriate response and it needed to be made without delay."Char, are you saying that you would consider having me as your lover?" I asked delicately."Yes," she said simply."Would you like us to secretly be lovers, sharing our special secret with no one else in the worls, no exceptions?" I further probed."Yes, that's what I had hoped," she responded."Could I take you as my lover.