We met up one night for a quickie - but had nowhere to go, both our places had other people in them and we didn't want anyone to know what we were up to, so we jumped in my car and went to a local park. It was just on dusk when we arrived and there were other people around, so we just started kissing. It didn't take long before things got hot and heavy. I started sucking that beautiful cock, running my tongue wherever my ok me, down the shaft, taking his balls in my mouth one at a time, tugging at them, not so gently, and rimming his arse with my finger. He had put his hand down the back of my jeans and was teasing my arse with a wet finger. I was soon straddling him and he had pushed the seat back as far as it would go. He removed my jeans and undies and pulled off his jeans, slid on a condom and was rubbing that massive hardon against my throbbing clit. My nipples were hard as he sucked on them. I happened to look out the window and noticed a couple in another car watching us. I smiled at them and waved. They waved back. I motioned to my fuck buddy that they were watching us and he motioned them over. They got out and stood outside our car as we continued. I noticed it didn't take long before she was on her knees sucking his cock while he continued to watch...... I was so horny by now that I quickly placed my soaking wet pussy above his throbbing cock and slid down onto it........mmmmmmmm.....We quickly got into a rhythm, me not noticing that my knee was wedged between the seat and the door. He whispered "I want to fuck your arse" and pulled out of my pussy and placed his cock at my arsehole. I slowly slid down onto it. It was nice and wet with my pussy juices and fit nicely......all the way to his balls.....Slowly riding his cock while he sucked on my nipples was making me so horny that I started moving faster..... looking out the window to see her now getting fucked from behind so they could both see us made me so hot....Soon he was slamming that massive cock into my arse, making me moan. He was breathing heavily too, the car windows having fogged up even though it wasn't a cold night. All that friction in my arse was making me want to cum, especially after playing with my clit while he somehow had three fingers inside my pussy........ I was so full and I wanted to explode...... grinding my arse up and down on his cock I soon exploded - knowing they were watching us - and not able to be quiet I let out a loud shuddering scream while he laughed at me.......... When I was done, I pulled his cock out of my arse, pulled off the condom and started teasing him, sliding onto his cock and then pulling off. After doing this for about five minutes while kissing him he grabbed my hips and thrust his cock into my dripping pussy, one quick motion. He started grinding me on his cock, my clit getting a workout too. His massive hands worked their way around to my arse and he quickly started fingering it, pushing a finger all the way in. The grinding motion was starting to have its effect and he started to fuck me hard and fast, building up to a massive orgasm that he blew straight into my hot pussy.......before I had time to realise what he was doing, he shifted positions and slid out of my pussy into my arse, blowing the rest of his load into it, in turn making me cum again......... I pulled my now aching knee out from between the seat and the door, waved to the couple that were now getting straightened up, got dressed and we went home. I couldn't sit down comfortably for a week, and walked with a limp, but every time I did I smiled!