To dream that you are involved in a threesome indicates that there is a missing component in your sex life. Pay attention to the gender of the participants in the threesome.
If the people are mostly female, then the dream implies that the missing component may pertain to some emotional aspect of sex. If they’re mostly male, then the dream implies that some physical aspect of sex is lacking. Note that the dream does not necessarily mean that you want a threesome in your waking life.
If you are actually considering a threesome in real life, this dream is allowing you to safely experience it so that you can better gauge whether it is for you or not. Our dreams often provide us with “dress rehearsal” for a real-life situation to help us make better decisions in regard to it.
If you’re not considering a threesome, and the dream is with your current partner and an additional person, then there is likely some new element you are bringing into your relationship, for example, working out together, that should be enjoyable and beneficial to you equally.
So pay attention to whether there is equally distributed attention and enjoyment in the dream as it will reflect how you anticipate things will go in real life.
Also Read: What Your Sexual Dreams Mean