My wife is a hard 'no' to involving another man, but she tolerates my occasional request to role play with the concept. Sometimes I'll pretend to be someone else, we'll have sex, and I'll talk down about "your husband" to her. She always redirects it, where she'll say hot things about the fictional other guy she's fucking, but she'll never say anything derogatory about her husband. One small thing changed recently. We were having sex and I told her, "I love fucking a married woman," which isn't out of the ordinary for us ... I asked her how it compares, and this time she said, "He's okay and all, but your cock is so much bigger!" That did it -- I climaxed right afterward. There was something about the fantasy of her complimenting another man as being better than the husband, that totally did it for me.
