Lonelyman has good points. I have talked about the fantasy because it happens to be a fantasy. However, things I have discussed tend to be things that involve "consenting" where even in the movies I discussed there is a warning of content before viewing takes place. When what you shared is done the way your husband has wanted, he is not considering the person/men that are taken by surprise and he is just assuming they "want" to experience his own fantasies. The main worry many posters have here is how your husband is using others for his own enjoyment without their conscent and expecting you to do the same with him.