Public bathroom stroking my 10 inch cock

I was in public with my friend she was wearing a skirt I was walking behind her watching her ass bounce she bent over looking at some stuff and she caught me looking, she said wow just like a man damn, do you like what you see pervert ? I just smiled and said fuck yea, she walked off I followed she went to the shoe section and picked out some shoe's she sat down to try them on and I was looking up her skirt again she didn't notice I turned and started looking at some shoe's when I turned back around she was kicked back legs wide open panties pulled to the side showing her pretty pink wet fat pussy I said holly fuck now that is what I'm talking about she ask is this what you trying to see i said well it wasn't my plan but if you're going to flaunt it I'm going to look every time that pussy is so fat and pretty she looked down and said holly fuck you got something busting out there, she busted her legs open for me then said go to bathroom record video of you jerking off an send it to me