Horny couple get it on in rear of cab

Well this hasn't happened for a while, my next fare for the day was a young couple from Hungary they were all over each other in the back of the cab and the woman especially was very horny and you could see she wanted fucking. Her boyfriend was trying to tell her to behave but I assured him they can carry on it's fine by me, within minutes they were going for it she was sucking his cock, he was playing and licking her pussy, then they started fucking each other. All I could look at was them and it wasn't long before we were well lost so I parked up in a country lane. I explained that I was enjoying the show and as a result we are now lost. The guy said why don't you jump in the back and join us, this was fucking music to my ears but first I needed to find a better place to pull up while that lucky bastard still had her all to himself.