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Quite a few years ago now I was called up for two years National Service in the Army. On my first leave I went home for a few days to visit my parents who lived in a small town in Scotland then spent the rest of my leave with my married eldest sister Jean wholived in a much bigger town.

At that time jean was twenty-seven and had been married to her husband Alf for about five years. Alf was quite a bit older than Jean and they had no children. The first morning Jean woke me after Alf had gone to work and bustled around in her dressing gown getting me breakfast and so on.then she went off to have a bath and get dressed. I settled in the living room with a cup of coffee and a cigarette and after about twenty minutes she cam back wearing a button through dress and carrying a pair of nylon stockings.

She sat down in an armchair opposite me and to my utter surprise started to put on her stockings. She rolled the first stocking slowly up her leg over her knee then slowly up her thigh moving the dress up as she went until the stocking was right up and her thighs were exposed. I could see as she fished around for the front suspender that she was wearing a pair of peach coloured wide legged french knickers. I was fascinated as as fished around eventually catching the suspender and fastened it. Then as she reached up for the back suspender and twisted slightly to fasten it her knickers moved to one side and I could see her neatly trimmed bush and the outer lips of her cunt.

By this time I had a real hard on and my cock was swollen hard. I thought "My God I'm looking at my sister's cunt." She then repeated the process with the other stocking and by now she had pulled her dress right up so that all her thighs and knickers were on full display with her knickers to one side exposing her cunt. I was now just staring at the sight and when I looked up I could see that she was looking at my hard on tenting my trousers.

She looked at me and smiled sort of tilting her head in a come hither motion. I needed no second invitation and moved over and knelt between her thighs and bent and kissed her bare thigh above the stocking top.I then slowly kissed my way up until I was running my tongue over her exposed cunt. As I licked her I could see that her clit was swollen and standing out hard and red. When I began to suck it she started to pant and give little moans. I pushed a finger into her cunt and she was soaking wet. I followed up with a second finger and gently fucked them in and out while still sucking her clit.

By now her panting and moaning was really loud and she was wriggling in the chair and she suddenly cried "Oh fuck me Jack. Fuck me. I pulled down my trousers and underpants and grasping my hard throbbing cock I slowly pushed it into her. Her was really tight and it was obvious that I had a much bigger cock than her husband. I had great difficulty right into her but eventually with a lot of hard pushing I was right up her and began to fuck her with long hard strokes. In no time at all she was screaming "OH YES. I'M CUMMING. I'M CUMMING."

At that I thrust even harder and faster feeling my knob banging against her cervix until with a cry my cum blasted into her.We lay for a while with my cock soaking inside her. She then suggested that we went to bed. We got fully undress and after sucking and playing with her tits and cunt while she sucked my cock into another erection we fucked again.

She explained that she and her husband had been trying desperately for a child for five years without success and they were both hoping that i would make her pregnant. After that I fucked her twice every day and yes nine months later she had a lovely baby girl.

She now has two teen age boys as well with a very loving father Alf and a very loving uncle Jack. Although she does want any more kids I still fuck her from time to time and she still cums screaming.