Encounter at work

I was working as liaison between my company and an owners association of some houses that were being refurbished about 30 years ago.
Until this I had never considered other women.
The leader of this association was a lady I shall call B
When I first met her it stood out how smartly dressed she was. She was an housewife whose husband was at work.
I visited her a few times a week and we discussed progress and the other owners issues. We became quite friendly and as the first time she was very smart in a nice dress usually. Things became a little more personal and she lent me a very erotic book about a girls boarding school. One chapter in particular discussed the friendliness of a dwarf who worked on the maintenance staff. The girls loved his tongue apparently.
On another occasion B lent me a tape containing some very rude jokes.
After several months we became very friendly and I began to wonder if she was flirting and I was becoming curios. Maybe I was flirting as well. One day I was chatting to her and it was a hot day. I think I was stood in her kitchen and about to leave. She was wearing a skirt which was unusual and no tights or stockings. I felt something between us and mentioned to he " no tights today the'" to which she replied " no knickers either". This was very personal and we had obviously became more personal after our first meet. I must have felt excited and bold but I placed my hand in the small of her back and then I felt the urge to slide my hand inside her skirt waist band and down onto he bare bottom. she gave me a told you so look. Not sure if we kissed but her husband was due back and she invited me back the following day.

Im not sure if she offered me a cup of tea the following day but all I remember is being led upstairs to her bedroom.
she undressed and got in the bed and I did the same. Then some passionate kissing and touching and I soon went down under the covers and licked her lovely sweet pussy. This made her groan with pleasure. she then took my cock in her mouth. She was expert at this. After about 30 minutes kissing and touchin she finally wanked to an ecstatic orgasm some of which she liked to lick up. She didn't want full sex as was very worried about getting pregnant.

I didn't have a great deal of time but we met a few times a week for several weeks.Usually we would have a cup of tea and then go upstairs. On a few occasions when there wasn't much time we would kiss in the hallway as I was leaving but this led to much touching and her giving me a wank before sending me off. She would catch the cum inher dress and wash it as soon as I had left.