The Special Panty experience

When I was young it was my habit to when alone to loook for Mothers undies to play dressing up.Now usually this was a corset or later a pantygirdle (when tights came in). Panties were nylon -pastel colours and fabric that felet like crep paper. Oh and of course a clingy nylon slip.
In the bottom right hand drawer of the dressing table however was a real treasure. There was an unworn pair of knickers that I knew had strangely been a Christmas gift from our elderly widowed neighbour. These panties were special. They were navy full cut panties in a satin nylon with a lacey front panel. These were my favourites at the time.Any opportunity to get them out and wear them was taken.
How I enjoyed wanking off in them (always I thought being careful not to leave nast boy juice in them. I used them for years.
She must have known, but never said anything. I am sure she knew that I enjoyed being a girl.