The first picture was that of my sister Cathy who happened to be wearing a very nice dress but something wasn't right with the photo. I realized after... a moment that you couldn't see her redish brown hair. A few strokes from the mouse and all was well with the world. "Damn, she looks really hot in that dress." I said to myself. I was so lost I never heard the door to the computer room open. I heard a cough from behind me, I turned and saw my sister Cathy standing there looking at me. "What are. I went back in and kissed her again, I slid my hand onto her pussy outside of her bottoms and push my fingers inside her and rubbed her clit, she tried pushing me away but I was too strong. I slid my hand inside her bottoms and down to her pussy, she was wet, she was horny. I slid my finger inside of her and moved it quick and aggressively, she said ‘please stop, this isn’t right’. I kissed her again, she was hardly kissing back but my cock was telling me to carry on. I put my hand up her top. But i was sure abt the lab.I looked at the warm watery expectant eyes of the lab. he was now standing. eagerly lapping his tongue at my belly. I pulled his face closer to mine and put out my tongue. He eagerly licked it. I was getting turned on by this whole foreplay again. I had plenty of this with bull. The lab was already 6 inches out. I applied some vaseline on his cock as he tried to hump my hand. but i wldnt let him cum. not so fast. When i was finally ready i went on all fours and. "It felt great."They went to bed completely nude and kissed and cuddled each other to sleep, but by unspoken agreement their hands stayed out of crotches.Sunday morning it was Catherine that woke up first. She looked at her beautiful friend and tried to analyse her feelings. Being naked in bed with Hannah was wonderful, but was this what she wanted? Thomas had been an interesting experience too - a pity really that Hannah and Mark had fitted so badly. Damn and blast having to choose. Damn and.