Dream about sister having twins is a message for an inner battle between your own ideals and values and between the ideals and values of others. You have some sort of crush on someone. You need to pay attention to the message that somebody is trying to convey. The dream is a symbol for your need to belong and to fit in to a larger group. You need to be both receptive and communicative in some work situation or personal relationship.
Sister having twins dream refers to earth. You are being deceitful, cunning or manipulative. You are becoming someone who you are ashamed of or someone who you longer recognized. This dream hints your possessive nature. Someone or something is in pursuit of you.
If you dreamt about sister having twins:
Expect changes in your relationship, especially in terms of the boundaries you may have placed on yourselves. There are probably certain things you will do as a couple, and certain things you will not. Today brings a chance to move beyond your self-imposed limitations and begin to explore new dimensions and new options for your future together. Dare to expand your minds!