there used to be heaps more opportunity for men to share cock such as communal showers, glory holes, cruisy toilets and rest areas and adult cinemas ...look at how many frustrated guys want to try cock its just natural.
I've been telling her for a long time that I get so aroused thinking of her being with someone else. I tell her that I want to suck her breasts while she fucks someone. It hasn't worked yet but I keep trying.