My Husbands Sister Showing her Vagina to Me

My husbands sister came to stay with us for a week for the first time we were off work for the week as well, we all went out for day trips and meals out and got on very well together, in a morning we had a brew in our night clothes or in bed we didn't rush to get dressed, I couldent help but notice she only had her dressing gown on I could see it flapping open revealing the her pubic hair and the top of her volva, I didn't mind I enjoyed it, I am bisexual, my husband doesn't know that was a previous life, one morning we were up he was still in bed, we were sat in the front room watching morning TV her opposite me, she didn't have her legs crossed considering she was naked beneath her robe her legs open nearly wide I could see everything I didn't mind and tried not to look between her legs but when you try not to look you are drawn to it, I was went very wet it was stirring wonderful old memories, she saw me looking sorry I said, its ok I don't mind if you don't I can tell your a bisexual I've shown you mine now you show me yours I didn't hesitate I put my leg over the chair arm and finger fucked my self while she did the same, that was the beginning of a relationship, there is more but not now.

Zen