PeterJ does an excellent job of explaining the distinctions between swinging, hotwifing, and cuckolding. While my husband and I are involved in "traditional" swinging, I am also a hotwife sometimes. He has encouraged me to have sex with other men while he has minimal contact or while he merely watches. I have also had sex with other men alone. In fact, our first lifestyle experience was actually a hotwife experience. Both of us derive emotional pleasure from it. My husband is part of the experience even if he is not there, because he is part of the planning process and I tell him all the details of the encounter at some point afterwards. However, we are not involved in any humiliation or cuckolding.