Car blow job

I was in a car part waiting on my girlfriend to come out the shopping mall it was me and her 21 year old girlfriend sitting in the car waiting i was chilling with music on about ten min after she went in the store i Heard a sound from behind me it was her sister rubbing her pussy leg wide open on the seat i watch her playing with her pink pussy thought the mirror i pull out my very hard cock she was moaning so load sounded so sexy i was getter in to beating my cock felt geat i then felt warm small hand on my stomach going down to my growing cock she said mmmm baby does it fell good dont tell my sis she then climp over the sea her ass up at the window she put my cock with her hand in her month she began sucking me better then her sis and she suck very good i pull her head deeper on me i seen people park next to us was looking im they could notvstop watching i started spanking her ass while she suck me i put twp of my fimgervim her momth. She was great to this day i always think of her sucking me in the mall parking lot