I have just returned from six months overseas with the army. My wife Cath is gorgeous, slim, about 5ft 5 inches tall, 34c tits, long dark hair and blue eyes. Some of the letters she sent to me while I was a way were mind-blowing, and I couldn't wait to get the mail every day to find out every detail of what she had been up to. She knows how much it turns me on to think of her with other men, and her letters were very explicit, telling me all about some of the men she had allowed herself to be picked up and used by whilst out on the town, and how they could not wait to get their fingers into her cunt once they realised she was not wearing panties underneath her short skirt. Often she would write to tell me how she had gone down on her knees in some dark car park and sucked off several cocks in one night, greedily gobbling down load after load of spunk. A couple of weeks before I returned home, she wrote and told me how she had met one older guy in a night club and before long she was giving him a blow job in the car park. He shot his load all over her face and bare tits, and then pissed on her breasts. She said she loved every minute of it. Well, you can imagine that by the time I arrived home we were both as horny as hell. I spent hours fucking her whilst she recounted some of the dirtier things she had gotten up to, and it wasn't long before we were eager to arrange a meeting on our favourite car park. We drove to the car park and could see straight away that it was busy. I parked the car and started kissing Cath. She was wearing a white top with no bra, very short black skirt, black hold ups, black stilletoes and, of course, no panties. She wore her hair up and looked absolutely fantastic. After a few minutes she took out my cock and began sucking it. Pretty soon I could see that we had an audience - a young guy of about 20 was standing some distance away watching us and wanking his cock slowly. I beckoned him over and he came up to the car. I could see that his cock was huge, maybe around eight inches, and very thick, and Cath wasted no time in getting it into her mouth and began sucking him through the open car window. Cath was loving it, as I could tell from the moans and the wetness of her cunt as I pushed three fingers into her. By now I was desperate to see my wife being fucked by another man, and this one seemed like the perfect candidate. I whispered to her to get into the back seat, which she did and lay on her back, hitching up her skirt. The guy lay on top of her and thrust his fat cock straight into her cunt and began pounding away. Watching this total stranger fucking my wife was amazing. Cath was loving it - her legs were wrapped around his back and her long nails were digging into his arse urging him to fuck her deeper. I knew that she was not far away from coming, and neither was I, and just then she yelled out to the guy "Fuck my arse!". Her legs went up over his shoulders as he penetrated her tight bumhole, and she cried out again "Fuck me - I want to feel you coming in my arsehole!". This was altogether too much for me and I orgasmed, shooting powerful jets of spunk over her face and hair. Seconds later the stranger was unloading his cum deep into my wife's bowels. When we arrived home that night, we were both hornier than ever. Little did I know that the best was yet to come...