I was at the mall today and ran into my ex's sister Kelsey. I had taken her driving last week and finally worked up the nerve to jack off in front of her. I was so nervous that she was going to tell someone about my show and today I found out that I did not need to worry.
Kelsey was with one of her friends Darcey. Darcey is sixteen has black hair, brown eyes, and nice boobs. They said Hi and Kelsey said 'Darcey this is my friend Mark, the guy that showed me how to drive last weekend.' Darcey giggled a little and said 'Hey' Kelsey told me that they had some time and would I take them on a drive. I said 'Ok.' Both still have to drive with an adult as they have learners permits.
We got to my car and Kelsey said she was going to drive. I got in the passenger seat and Darcey was in the back. After driving for a while Darcey leaned forward and said 'So you like to beat off with panties?' I almost died. Kelsey must have told her about last weekend. I did not know what to say and Kelsey looked over and said 'I told her about you and we both want to see you do it again.'
I looked at both of the girls and asked 'What do you want to see.' They laughed, Darcey made a fist and acted like she was beating off. I told them that if they wanted to see me masturbate I needed their panties. Kelsey pulled over in an empty parking lot and pulled her shorts down. She handed me a pair of yellow satin panties. Darcey had taken her bra off and said 'This will have to do.' I pulled my cock out and began to jack with the panties. I laid Darcey's white satin bra across my legs. Both girls were watching and Darcey started to say 'Beat it, beat it, oh yea, cum for us.' I just kept stroking and finally blew my wad all over Kelsey's panties. We then drove back to the mall and both girls told me they would see me later.