Twins
To dream of twins represents conflict, ambivalence, dualities or opposites. It may also reflect conflict between ideas or decisions. Feelings about similarities to others that are obvious and don't require discussing. Problems with remaining monogamous or loyal to one person.
Positively, twins in a dream may reflect heightened feelings of cooperation or harmony. Working or getting along with someone very well. A person in your life that you do everything the same with. Perfect equality that is obvious and requires no discussion.
To dream of fraternal twins may reflect feelings about similarities to others that are not obvious and require discussing. Negatively, fraternal twins may reflect a need to lie about perfect equality in a relationship so nobody gets their feelings hurt. A need to openly discuss how someone else is "just as good as you" when you don't really believe it.
Feeling that partnership or happy relationship looks fake. Feeling annoyed at having to discuss similarities that are not obvious.
Alternatively, dreaming of fraternal twins may reflect problems with making a choice between two similar, yet different feeling options (e.g. money or love, smart or funny, caring or protective).
Example: A woman dreamed of giving birth to twins. In waking life she started dating, but still had strong feelings for her ex.