If Luke and Leia are twins, why don't they look alike?

Originally they were not siblings at all. Various drafts came along and they were cousins, lovers, no relation and other relations. Eventually we came to the twin draft. Luke and Leia were gestated at the same time, but as with pretty much all if not most opposite sex twins, they are fraternal, not identical. read more

These are called fraternal twins. Given that Luke and Leia are different genders, they cannot share identical DNA; if they did, they would both be XX, girls, or XY, boys. It is not surprising, then, that they don’t look the same as each other, nor that Leia is shorter than Luke, more often than not a sister is shorter than her brother. read more

By Brian Cronin A few months back, I did a piece on Comics Should Be Good about the moments during the Star Wars comics where Luke and Leia kiss, moments that look kind of odd in hindsight when we discover in Return of the Jedi that Luke and Leia are twins. read more