Finally with a Spectator

Good evening everyone. This is the first, and hopefully not the last, story I've written here. After spending years reading about other people's adventures, the time has finally come to share a personal, real, and recent adventure with my girlfriend.

A brief description of us: we've been together for four years, we're both 29 and full of fantasies we want to fulfill. She's 5'7" tall, with 150 lbs. 34-cup breasts and a nice ass, and I'm 6'5" tall, with 175 lbs.

The incident happened on Friday evening, as usual, we were out with our old friends, having a drink at the pub, and the evening was slipping away amidst the usual chatter, with the usual boring routine that's been weighing us down a bit lately.

As usual, she had her drink, I had my beer, and off we went, talking about the same boring things with our friends. Around 12:30, bored, she told me to go because she had to work the next day and that she was just getting bored anyway.

As soon as we got in the car, after saying goodbye to everyone, her naughty side came out. She whispered in my ear that she wanted to liven up the evening, and as we often do, instead of heading home, we looked for some secluded spot where we could have some fun.

The drive wasn't easy, as the lust was building, and my girlfriend, who I'll call E from now on, had already started unbuttoning my jeans and playing with my tool. I then decided we'd arrived, we'd already left the city (we live in a small town outside the city), and I found a parking lot that was only occupied by two cars that evening. I didn't even have time to choose the darkest spot, furthest from the road, because E was already with her breasts out and not her mouth on my cock.

We moved to the back seats and she continued her little job, and I started fingering her, halfway through my orgasms.

After lubing me up, she climbed on top of me, and I started penetrating her from my seat. It's our favorite position in the car, the one that allows for the best penetration and the greatest pleasure for both of us.

While she was on top of me, I saw that instead of looking me in the eyes like she usually does, she was captivated by something behind me. At first, I thought she was just checking out the situation, but after a while, I decided to look back and what I saw was a man in his 50s. I think he was enjoying the scene and touching his penis.

I looked at her and she reassured me, telling me not to worry and to let her do it. The guy comes closer to our car so he can see us better, although luckily he keeps his distance. Now he has a perfect view of us from the side window. He tries to get closer again, but she waves him off.

He then pulls out his cock and we continue riding, watching him. He starts jerking off. E. tells me now I'll make him come. She gets off me, pushes me aside so I can see the guy, then bends over doggy style, showing him her ass and pussy, and starts giving me head while touching herself from behind. After about 3 minutes—and I'm not kidding, it must have been 3—the guy comes in the middle of the parking lot, and I come in E's mouth, too. She gulps it all down, and without even getting dressed, we start the car and drive away. We leave laughing, happy and satisfied. The guy was very polite and it was perfect for our first experience.

At home, with a cool head, we talk again. I immediately tell him that we have to do it again or that we have to make our fantasies come true... it was too exciting... his response was: "we'll see"....