what is cheating though?

i know of an open relationship where both partners have multiple other partners. "cheating" for them means having sex with someone else in their actual shared bed.

i have heard arguments that masturbation is cheating, that porn is cheating, that having fantasies of any sort is cheating.

personally, i think the coming sex robots wil mean different things to different couples. some will demand they be banned, some will just think they are wierd, some women will buy one for their husbands when she goes away to the next conference.