This happened to me many years ago.It was my first fanny.My aunt had been teasing me with her knickers for some time,which I fondled prior to fingering her pussy,I was so stiff when I began to shag her,I very soon jerked off.Glorious.--Needless to say I was into her knickers as often as I could.She would undress to her undies let me put her panties on and wank me off.I have been a devout Panty Lover ever since---