you have hit the age old question which is how much do we protect our kids from what we like and do that we feel should not be known.

As open as I am about who and what I am, I allowed wife/slave to hide who and what she was from the kids. I have spent a lot of time thinking about this and how it ruined our marriage.

So I advise you to plan for these thing in advance, because the kids do need to be protected from seeing mom and dad together so seeing mom, dad and others in action probably falls into that category too.

You have already hit on the easiest solution, sleep overs for the son, or baby sitter and go to a hotel/motel for play.