Rest stop fuck

Stopped in a rest area late last night with my girlfriend. Things got a little crazy as we had a couple of drinks after dinner when she started to go down on me. Off with all her clothes and she started giving me head leaning over the console of my truck with her ass in the air. After about 5 minutes another car pulled in right next to us and parked. At first she was a bit nervous but I assured her everything was cool and that i thought it was hot to have someone watch us ! She was into it to my surprise and continued going to town on me . I was watching the other car when i noticed a man get out and walk over to the window of my truck. He dropped his pants and began masturbating while watching my girl deep throat me. I was so turned on by this i told my girl he was watching and jerking off to her . She was wet and moaning as i fingered her i asked if i could open the window and let him touch her , she approved and i lowered the window and he reached in and started to finger her then asked if he could fuck her! She let out a loud moan and i unlocked the door. as i watched him standing in the moonlight i noticed how big and hard he was and told him to use her like a dirty whore. He shoved his throbbing cock deep in her hole and she screamed fuck me ! ! I was so turned on i shot my hot load down her throat while he pumped furiously in her wet pussy. She was loving every second of it and i sat back and watched him fuck her for 15 minutes until finally he shot inside her as she moaned and squirmed . After he finished he thanked us and asked if he could fuck her again sometime ,she replied how about tomorrow night same place and bring a friend or two if you like ! I can't believe what I've gotten into but i'm loving it and can't wait until tonight ! I'll keep you all informed on how it goes !