Hello 1sweetpleasure,
You will get a lot of advice from this and other boards likes this one. Some of these people are real, some fakes. Some think everyone but them are fakes. Many will give very good advice. You can learn from the people on here. Most will say the same things to begin with.
We believe It is critical that you and your husband are in a very secure relationship. This must be a mutual desire at all times. One of the biggest turn on's, as well as relationship anchors is open and honest communications. This includes before and after (you will be preoccupied during... lol). Talk about how you both feel. What doi you want from this? What is not OK? There is a big difference between fantasy and reality. Communications will help bridge that gap and secure your current relationship, as well as the one(s) you will enter.
Now the door... if you will. The old saying "Once you go black, you never go back" is true in many different ways. You both need to not only understand this but embrace it as well. Jealously can destroy a good thing if allowed to foster.
We are very open and not jealous in any way ( well not jealous like you would expect).
Never allow pressure (from anyone) to play any part. Do not confuse sex with love, or love with sex. They are different and should be kept that way.