Girl's tantrum after finding she's a minute younger than twin will leave you smiling

Sibling rivalry is quite common when children are still young and trying to make sense of their surroundings. But these identical little twin girls sure have a strong competitive streak.

Twins Alexis and Ava are YouTube stars already at the tender age of three. Their parents choose to share the girls’ delightful years with the world via the McClure Twins.

But despite being identical twins, Alexis and Ava still have their differences…and it looks like neither of them is happy about it. While Alexis is distraught that her sister is a full minute older than her, Ava can’t cope with the fact that she is the shorter sister of the two.

Click on the link below to watch their cute antics.