These pics of Zac Efron and his brother roughhousing in swimwear are a gift

He captioned the shots:

Happy birthday @dylanefron! Honestly, I never in my wildest dreams, would’ve thought that the little terror, devil, monster that was my little brother would turn into my very best friend. I’m so proud of the man you are today. Let’s save the world together- one waterfall at a time. Love ya little brother!