Well, I believe that some things are better left in the realm of fantasies, or that one have to wait to be in the situation/with the person they really feel like trying said things.

I also think that like anything sexual, when you're turned on, and that you communicate well with your partner (no matter if short/long term...) it works better, even though it's also natural to try certain things and then realize that you like them better when in thoughts than in actions.