Temptation Men’s Spa

My fiancé and I (25 and 24 y/o) are thinking about going to a Men’s Spa to spice some things up. We haven’t yet talked about if we would watch others or let other guys join in between us. What should I expect when going? Is there a possibility for just us two to be more private but still more kinky? I am really just looking for some advice on how to approach the situation so neither of us get hurt.Thanks!