Happy 4th of july lerk off

my sister came to visit for the 4th, we were sitting on the patio talking and smoking, asI looked over at her I noticed instantly that I could see up under her slinky dress and saw a good beaver shot several times. I rapidly started getting a boner which was obviousfor her to see. she gave me a big smile as she stared at my bugling pants. I smiled back as I gently rubbed my cock and worked it out of the leg of my shorts for her to see.I was so horny and my cock throbbed hard in my hand.
I asked her if she remembered when we were teens and played around with each other, she said yes and wished we could do it again, I spread my legs apart holding my cock out for her and said here s*s enjoy yourself if you want to, I would like it a lot I nearly shot a load off when she reached over to stroke my hard cock. I reached over putting my hand between her legs feeling the warmth of her hairy pussy with my fingers
I leaned back in my chair as far as I could pushing my cock up and out for her. we sat together for some time having fun playing with each other until we both camemy roman candle exploded shooting hot streams of cum everywhere.