Prince George is getting the hang of this whole "being royalty" thing at nearly two years old, but it can become a little much at times!

While at his sister, Princess Charlotte's christening over the weekend, the little guy showed that even though he's a supportive big brother, he can definitely make it reign sometimes!

VIDEO: Princess Charlotte Christened In Same Church Princess Diana Was Baptized In

Not to take pleasure in your pouting, George, but that pout is so pro! And just look at him grumpy-mug the cameras.

Awwww, you cute little grumper!

PHOTOS: Princess Charlotte of Cambridge's First Pics

He's just a little heirritable right now.

Luckily, he can't keep up his pout when he peeks into his sister's stroller!

All in the day of a prince!

PHOTOS: A Royal Family Photo Album

Here's hoping England's sure-footed leader got a much needed nap.

Keep it regal, little George!

Now, this old interview of Princess Diana talking about her hopes for Prince Williams future will bring you to pieces.