Three-year-old Caiden Henson picked out his Halloween costume all by himself for the first time. This year, he chose to be Elsa, one of the princesses from Disney's "Frozen." 

When Caiden's dad saw his son dressed up in a Princess Elsa costume, he didn't make a fuss. Instead, Paul Henson said he'd dress up like Elsa's sister, Anna, to complete the look.

The older Henson even shared a photo of his preschooler dressed up in his Princess Elsa dress to Facebook on Sunday, boldly explaining why he has no problem with his son's costume choice.

"He wants to be Elsa. He also wants me to be Anna. Game on," he wrote.

To date, his post has been shared more than 20,000 times. 

The 28-year-old dad told Yahoo! Parenting he often lets Caiden make his own decisions (fashion and otherwise) but that kids at school weren't as accepting of his costume choice as he was. "A girl wants to be a firefighter or Thor or Spiderman and it's OK," he said, "but when my son wanted to be Elsa, he was getting bullied."

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Henson said the children told Caiden he wasn't allowed to dress up as the Queen of Arendelle because he wasn't a girl.

"Halloween is about children pretending to be their favorite characters," Henson wrote on Facebook. "Just so happens, this week his is a princess."

No matter what the kids at school think, the father and son duo have every intention of dressing up like the Disney sisters this Halloween. The proud dad says he's still getting his Anna costume together but that they're really "gonna do the whole [princess] thing."