I have found over the years that the majority of men & women given the right circumstances will fuck, have extramarital sex, doesn’t matter how prim and proper and demure they may appear. As I've said, given the right circumstances they will fuck. If you are wanting your wife to fuck other men , parties are the best place to start. Plenty of alcohol etc and you will find her being eyed up and chatted up. Just take it all in and if possible chat up someone yourself. This usually gets a wife perhaps a bit jealous and wants to show you that she's enjoying the attention she's getting. At one party we went to someone suggested playing strip poker, there ten of us, five couples and we had been out on the town all evening. I thought my wife would not be willing but to my surprise she agreed alongside everyone else. It was agreed that when someone lost he or she would remove a piece of clothing. As there were 10 of us 3 packs of cards were used and dealt face down to each player as we sat in a circle on the carpet. As the game progressed garments were strewn over the floor as players lost hands. I was interested how far my wife would go. It was now getting to the interesting bits where some of the women were down to bra and panties including my wife. She had a nice body tits not big but nice and firm. B, who I worked with and I knew loved cock was the first to remove her bra and expose her tits. Then my wife was next and she sheepishly removed her bra and tried to cover her nipples with her arm. We men were also getting close to exposing our cocks. M was the first to strip completely, his cock semi hard for all to see. Then we all stripped off one by one until we were all naked. It was decided that we draw lots to see who we coupled up with, couples were not allowed to match up with each other. I thought my wife would perhaps draw the line at this but she didn't and she was coupled with C and I was coupled with B. It was a large house with four bedrooms and again we drew to see who had which bedroom, one couple would have to use the lounge. That turned out to be my wife and C .The rest of us went to our allocated bedrooms. I had always wanted to fuck B and couldn't wait to get between her legs. Once in the bedroom my cock stood stood up hard and erect and she soon had it in her mouth sucking me avidly as fingered her wet cunt. Her cunt was shaved, she used to pose for a camera club naked. I licked her clit and she got very worked up and very wet, her cunt glistening with her juices. She told me that my wife was going to get a good fucking as C who she was with had a very large cock, a good ten inches she said. She told me she had been fucked by him so she knew what my wife was going to get. This turned me on even more and I was on top of B fucking hell out of her. After I had given her a good fucking and a load of spunk I said let's go downstairs and see if my wife was still being fucked. When we entered the lounge my wife was spread across a large settee with C on top of her, her legs raised and open wide taking his huge cock fully inside her . She didn't see us her head was hidden from us. She was crying out and gasping loudly as C gave her good shagging. I could see his huge cock thrusting into her wet cunt. My cock stiffened immediately and lowered B onto the carpet and shagged her again as I continued watching my wife being shagged hard. Then C groaned that he was coming and I watched excitedly as he filled my gasping wife with a load of spunk. Then she saw me fucking B and she just lay there and watched me. Other couples entered the lounge and I finished fucking B again. C rose from the settee his cock hanging half way down his thigh, he really was big. Gradually we all got dressed and left for home. We lived close by and walked home and nothing much was said. Back home she cleaned herself up and we went to bed and then she told me how good it had been and how he had given her a good fucking with his huge cock. I asked her she wanted more cock and she said she did, especially really big ones. She was hooked on them. J another friend who was there were in a 4some with another couple , I didn’t see the action but I was told she liked lady love , licking out K while being arse fucked . That took us on to the next phase, threesomes, placing ads in contact mags , in those days mags called experience etc and getting men big cocks to fuck her as I watched. As I said , the right circumstances and the majority of wives or partners will open their legs for more cock, they love it.