A dad bakes his daughters the most epic birthday cake ever.

One dad was faced with the ultimate challenge when his daughters asked him for an unusual birthday cake.

When this dad asked his 4-year-old twin girls what sort of cake they’d like for their up-coming birthday, he received an answer he certainly wasn’t expecting.

“My 4-year old twin girls wanted a Hulk Princess cake for their birthday. So I made one!” he wrote on Reddit under his username NobodyLikesASmartAss alongside this image.

The 'Hulk Princess' cake 'NobodyLikesASmartAss' submitted to Reddit.

We have to admit, we've seen a lot of birthday cakes in our time and spent hours trawling through the Australian Women's Weekly Children's Birthday Cake Book as a kids.

But this 'Hulk Princess' cake is certainly unique.

Here's to celebrating a dad that is happy for his gorgeous girls to enjoy both princesses and superheroes.

What's the most creative birthday cake your kids have asked for?

TAP on the image below and scroll through the gallery to see some incredible birthday cakes...