Wife has passengers in car while on M1

My wife and I were traveling on the M1 from london to milton keyenes area last week. We had 2 guys in the car. They were people we met at a party while in london. My wife was a bit tired from the night before so she sat in the back seat with one of the guys to have more room for a snooze. I sat in the front passenger seat as I was a bit hung over and one of the guys drove. She had a short skirt on, high heel shoes, white panties and bra and a front buttoned blouse. As she lay back on the seat her legs opened and her skirt rode up her legs a bit. She had her shirt loosely buttoned and so the guy in the back could see a nice bit of her tits. He told me and the guy in front what he could see and that she was turning him on, and apologised to me if he was being rude. I told him it was ok. My wife moved a little and moaned. He said her skirt moved up a bit more and that he couldn't help have a feel of her long legs. She moved a little and moaned a bit more when he moved his hands over her legs. Keeping her eyes closed she unbuttoned more of her shirt as he moved his hands towards her pussy. Her shirt was fully unbuttoned now and she was undoing her bra from the front and then her ample tits fell out and she opened her shirt to reveal her great breasts. The guy started licking one breast and fondling the other. Her eyes were still closed as he moved one hand down to her cunt. She moved her skirt further up her body and started to slide her panties down her legs. The guy took over and slid her panties off. She sat in the corner of the seat and moved one leg on to the seat so that she had her legs opened. He immediately went down on her and started licking her cunt and fondling her tits - her nipples were fully erect and her eyes stil closed. Within seconds she came and went straight for his cock - her eyes met mine and we smiled. She indid his trousers and a huge cock popped out and went straight into her mouth. He was holding her head and sliding his cock in and out of her mouth. She moved away and lay back with her legs open and told him to fuck her until he came inside her. He slid his huge cock inside her soacking cunt and started ramming her fast and hard - she was screaming now - and within a minute he shot his load inside her. She looked at the other guy and smiled and beckoned him to her. We were in a service station by now and he drove to a far corner. The guys swapped over and she told the driver to get back on the motorway. She undid the new guys trousers and out popped another nice cock which she took in her mouth and sucked for a few minutes. She then turned around and told him to fuck her from behind. He slid his cock inside her and started to fuck her hard and fast. She then told him to wank his cum over her and a few minutes later he took his cock out and wanked his cock and shot a load of cum over her arse. She told me to get in the back and lick the cum off her and then fuck her. She went on her back, opened her legs and I rammed my cock inside her as we smiled at each other while fucking. We all had another go at her before we reached our destination. Best journey I have ever had on the M1!