Hello everyone. My story is about my wife's younger sister Y who is 35 years old. Every since I know my wife, the has always been a great deal of sexual tensions between Y and myself. I seen her naked on one occasion when she used my private bathroom (when we had invited them over for a party). On that day I saw her pussy (very hairy, thick black hairs all over) and I could not help wank directly after they left and when I was alone. I always wanted to sample her and I know she feels the same way too because she gives me this 'oh so naughty look' sometimes.
Well, today I went to visit her in a hospital as she is approximately 5 months pregnant (she still does not show the pregnancy and looks great) and the doctor suggested that she undergo some precautionary observations. When I got there, she was alone in her private room and the door was shut. I knocked, and entered. She was awake and we chatted for a while. I suggested that I rub her back...which she kindly accepted. She had this grown on...over her nighties. I rubbed her back for a while and asked her to pull off her grown. She did this (perhaps reluctantly) and then I continued to massage her back and shoulders.I continued for a while and gently pushed her nighties out of the way so that I was now massaging her bare skin. As I was standing behind her, I could see her breasts from above her...and they looked so soft. I continued to massage her and exposed her shoulders and breasts even more. She seemed a bit guilty but I asked her to just relax. I massaged her for almost 45 minutes and all that time staring at her breasts. She knew after a while that I was looking at her breasts, but pretended otherwise. By that time, my cock was so hard that I felt like I needed to wank. It took every last ounce of inner strength that I had not to caress her breasts or to masturbate there and then. I stared at her beautiful breasts and salivated thinking how good it would be to suck them or even to just touch them. When I left, I went back to work and checked my underpants....there were traces of pre-cum all over. All afternoon I remained (more or less) aroused. I decided to write my experience down to savour it and then to masturbate my now very hard cock thinking of Y. As I rub my cock, I am thinking of Y's breasts and how they looked...ooooooooooo. I decided to cum screaming out her name.....here goes......thanks Y