[invictus]

Nothing "unethical" about doing research, but definitly wrong to proceed unless both of you want to do so.

We were approached by another couple which brought up the topic to us for the first time. It was a couple of years later before we actually did anything. One of the reoccuring conversations in that time period was when we would occasionally watch a XXX video. Both of us would say "what do you think of that?" or "Do you like that?" or "Would you like that?".

Might be an ice breaker to a real conversation.....