There is no familial relationship that is quite like that of twins. There is something about the experience of sharing a womb at the same time that can create an unbreakable bond, unlike that of any other kind of siblings. If they happen to be identical as well, that is 100% of the DNA shared between them, only adding to the special relationship. They are a small proportion of the world population who often have a bond that outstrips every other kind.

While some twins might like to argue that with two of them around, there is double the fun, not everybody is inclined to agree. In particular, a close twin relationship can cause difficulties with romantic relationships if a twin isn’t careful. While it is great to be close with family, many romantic partners will feel misunderstood and neglected if a sibling seems to take priority over them. It’s nobody’s dream love story.