"She's a good little cocksucker, did she learn that from you?"
"Uhm"
"Ugh fuck she's got my balls all nice and tight already." he said, shifting slightly in his seat and pushing Amanda back off his throbbing cock. She sat up a little and looked at me, sitting there now entirely naked in my back seat. Her 36cs rested on her chest, looking so perky and round as only tits that young can look.
The hitchhiker was reaching for them now. He turned Amanda so she leaned back again him and he held her in his arms. His touch was gentle, loving and his hands moved along her sides up to her breasts where he cupped them and began tweaking her nipples, exactly the way she liked. She leaned her head back on his chest, her long dark hair on his skin and moaned softly, almost as if she was in disbelief at how this was going. I began to smell her sex fill the cramped car.
Sure enough, Amanda's pretty fingers were moving down to her soft pussy, and I could hear the gentle wet slick noise as her fingers began playing with her folds, teasing her clit. She moaned softly and the hitchhiker began rubbing his fat cock on her back, dry humping her soft pale skin as she masturbated. I thought about how wet she gets when she's really turned on and worried about my upholstery, she was definitely going to drip all over it.
The hitchhikers hands were on her hips now, controlling my girlfriend as he continued rubbing that fat snake on her soft back. Amanda put her head back now, her hair flowing over her shoulders and onto his chest as she relaxed completely against him. I watched, afraid to move up until this point. The entire thing felt like a dream and I was fighting mixed emotions. I had only recently told my girlfriend, sheepishly, that I had fantasized about what it would be like to see her with another man. She didn't seem too into it, but had teased me a few times about it, tugging on my dick with her hand and cooing things in my ear about how I couldn't handle her with another man. Inevitably, she didn't let up on her soft but insistenttugging on my cock, and her stories would keep going until eventually I came in her hand, like some sort of pet or toy. She'd tell me I was a good boy, pat me affectionately, then go clean off her hand.
Now as I watched my fantasy come true, she wasn't paying any attention to me. It felt wrong, I had gut reactions of jealousy and worry. But my cock was literally pulsating inside the boxer briefs I'd put on that morning and I was getting that urge, like an itch, to pull it out and start stroking. But I didn't dare move, afraid of what they would do next.
The strangers hands, which had been using her hips to basically lift her and rub her entire soft little body against his cock, now put my girlfriend's butt back on the seat. I watched as he pushed his hands further around her and down between her legs. For a minute, his big older hands rested over her pretty soft one, which was still methodically teasing her own clit. Then with a soft moan she allowed him to push her fingers off herself and take over. She gasped now as he expertly flicked her tiny little clit, and that noise of her juices slick around his fingers filled the otherwise silent car.
I couldn't stand it any longer. I faced forward for a minute so I would have more flexibility. With my body turned the right way I was able to get my belt off and pants down around just one leg. I fumbled like an idiot, glancing around quickly to make sure no one was near our car. Next, my boxer briefs slipped down off one leg and finally my aching cock sprung free. As it did, the thought flashed through my mind that I was normally proud of it, but it looked suddenly smaller and not as...thick...given that I'd just been staring at the hitchhikers own tool pressing into my girlfriends mouth.
