My girlfriend and I are going to get married this summer. While over the years we have enjoyed sex very much and we have a strong relationship. During sex on of her biggest fanasty's is to have a threesome with another man. This fanasty comes from years of us acting it out with vibrators and dildos while watching porn. Recently she has brought it to my attention that she might like to try it on a one shot deal and maybe also with a woman afterwards. When I am horny I am all for it and think it is hot, but when I am not horny I am so-so on the subject. We have two plans 1) go out and just find somebody attractive and do it. 2) work up to it by going out dancing one night and letting her stray, then if comfortable another night with maybe light sex to make sure we feel comfortable with the situation. My girlfriend has never sleep with anybody but me and would like to try after we are married. So what is the best plan and if anybody else has done this what should I expect after. We both said after we would talk about how we felt to see if it enhances the relationship, but we do not want to ruin our relationship. Let me know your opinion