While having a twin has its perks, it has downsides too – seen most especially when a pair of twins marries another pair of twins. That’s what happened to two pairs of Chinese identical males and females.

Chinese twin brothers Zhao Xin and Zhao Xun, from a village near Yuncheng city in Shanxi province, dated and eventually married Yun Fei and Yun Yang, identical twin sisters from a village 10 kilometers away from theirs, reports news portal Chinanews.com.

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The pairs married each other during the recent Lunar New Year celebrations, with Zhao Xun marrying Yun Yang and Zhao Xin marrying Yun Fei. A union between two sets of twins is called a “quarternary marriage,” reports Today.

Both pairs of twins have various similarities that make them so alike, including their voices. These similarities make it difficult for people, even their families, to distinguish one from another. During their wedding day, both pairs even had to ask each other who’s who to avoid making errors.

Although each married the right one, identification problems continued showing up after the marriage. One such problem is caused by mistaken identity: one of the brothers went out for an after-dinner walk and returned home to find his brother holding his wife’s hand. Of course, he was mistaken.

Because of this, the couples asked doctors at a hospital in Shanghai to make some ‘slight’ cosmetic adjustments to their faces so that it would be easier for them to distinguish one another.

If that wasn’t weird enough, here’s another twin-marrying-another-twin story, this time with much more grandeur in terms of doubles.

A wedding held in Kerala, India last 2015 had two identical pairs as well, reports Today. More than that, the marriage had more than just twin brides and grooms in the ceremony: twin brothers Dilraj and Dilkar Varikkassery reportedly married twin sisters Reema and Reena, and their marriage was officiated by priests Reji and Roji, who were twins too.

In addition to that, the flower girls and page boys (equivalent to ring bearers) were also identical twins, and all of these pairs dressed alike. All in all, there were seven pairs of twins present in the wedding ceremony.

Tagsquarternary marriage, Twins, Lunar New Year