The only time it's acceptable.

Why Is There A Baby Inside King Cake?

There are two theories. Some think the plastic baby is symbolic of Baby Jesus because of the religious connection to King's Day. Others, however, believe the popular New Orleans lore, which suggests that an elaborate cake was served with a bean or ring placed inside during the commemoration of the king's ball in colonial Louisiana. Whoever found the bean or trinket in their slice of cake would be crowned the king or queen of the balls, leading up to the lavish finale on Mardi Gras.

Either way, the tradition is that whomever gets the plastic baby has to host the next party. Whomever gets the plastic baby at that party has to host the party after that.

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