I want to watch my wife getting fucked by another guy. He would have to be longer and thicker than me. I want to see the discomfort in her face as his huge cock stretches her more than she's ever been stretched. I want to see her expression change from pain to pleasure as she orgasms. Then I want to see the panic in her eyes as he cums in her.

My wife was all for it from the get go. She was receptive to discussing it so I asked her what turns her on in the way of another guy. (She had not totally agreed at this point.) She told me and the next few times we had sex I would tell her to close her eyes and pretend I was those fantasy guys. It didn't take long for her to suggest that we actually go for it. Well, I actually said after we were done one night that wouldn't it be fun if I had actually been that fantasy? She said hell yes and that was the opening of the door. Within a week or two we were very active in the swing lifestyle. I had previously joined a couple swing sites and had already started posting photos and a profile.

Get a blindfold on her and start roleplaying.act like it's a stranger and tease her.