My husband is locked now but before that we did a game where we watched different types of porn to see what aroused him. I found some interesting things that he probably would not admit to me namely trans porn and chastity tease and denial. This is what got us started with chastity and we love it. It may seem odd to watch gay porn or stepmom porn with your husband to see if his cock starts throbbing but we made some interesting connections.
i think i want to try this with my Wife as she likes to watch porn with me