Hotwife making out in the backseat with her lover

We were coming back to the seashore from this well-known Holy City in Tunisia, it was nighttime and I was driving. My wife had decided to sit in the back with her Arab lover - I've already narrated in another story how, to make peace, I had accepted that summer to share her with him since he had convinced her he was the love of her life (he was primarily the lover of the money she left him with and the visa she might have provided him with). All the time we drove back to the seashore, in the night, she played with his cock on the backseat, and at one point I heard the unmistakable sound of her sitting in his lap, obviously sliding his very erect cock in her more than wet muffin. She has a way to sigh when she's being fucked, not very loud, and she rarely moans a lot (except with black lovers, as I discovered later) but unmistakable. He sighed as well, they obviously didn't want to make too much noise since I was driving and he was still uneasy about fucking her in my presence (he would quickly learn I liked to share her and watch), and all of a sudden there was the clear smell of semen mixed with vaginal juice, obviously he had come in her and the spunk was flowing out onto the car seat. She quickly asked if I had some kleenex tissue because they were both sneezing and of course I had some - but the only thing sneezing was his glans, and she had obviously been contaminated by a bad case of flu since her cunt was doing the same! She knew I knew, and when we were in bed later that night we had a good laugh sharing what had happened on the back seat of the car while I was driving. That road was so boring...I had to do something, she whispered, smiling, like the cat full of cream that she was...