Boy/girl twins are always fraternal or , rather than identical They can only form from two separate eggs that are fertilized by two separate sperm The terms identical and fraternal don't describe what theA husband and wife are expecting twins;1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars 2 The Thirteenth Tale by Diane Setterfield (Goodreads Author) 396 avg rating — 296,450 ratings score 3,353 , and 34 people voted Want to Read
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