It's a casual relationship
In many cases, what you get is a casual sexual relationship. You can all enjoy sex in this relationship. You don't have to be distracted by any difficulties in planning for the future or in a committed relationship. That's why it's called the NSA relationship. First of all, you are friends, so you can do whatever other friends can do. You can go out to play, drink and so on. But when you do these things alone with your friends, the atmosphere becomes subtle and gives you a sense of dating. Moreover, when you benefit from this relationship, you will find that many people will oppose this relationship.
You have a common pursuit
The most important thing for the two consultants is that they can fully understand the meaning of this FWB and whether they want to pursue the same thing. If one of you wants an NSA relationship and the other is more likely to choose a committed dating relationship, the relationship will be out of balance. So never force another person into a relationship that he is not ready or willing to enter. If it's stressful for you, my advice is to stay away from casual relationships. When you are tired of the relationship or want to escape, honesty is the key to solving all problems. No matter in FWB relationship or friendship, if there is no honesty, you will complain to each other.
Don't limit your FWB
If you want to run a successful NSA relationship, you should avoid looking for any commitment in that relationship. Don't try to limit your friends to meet your desires. When you are friends, will you stop your friends from eating and sleeping with another person? If you don't, then you shouldn't do it now. You can spend time looking for someone who can accompany you for life, but you should not interfere with each other. This is not what should happen in an NSA relationship.