Having three younger brothers isn't always easy, and sometimes they get on my last nerve, but over the years I've discovered some undeniably true facts about being the oldest.

1. You feel very responsible for your younger siblings at a very young age.

You always had to make sure they didn't accidentally put their hands in their birthday cake or do something equally horrific.

2. Every time a new baby was born felt like Christmas.

No matter how loud they cried, you never got over how adorable they were.

3. You always had someone to play with.

What's the best part about brothers? Putting them inside of a box.

4. You always had someone dress up.

He's rocking that feather boa. I was quite the personal stylist back in the day.

5. You were always there to keep them from falling down.

Literally.

6. You prided yourself on being the "mature one" in group photos.

Can you tell that I'm so mature because I'm not holding up a candy sword like a pirate?

7. You always made sure to hug them when they didn't want to be hugged.

Again, they were just so darn cute. Who wouldn't want to love on my baby brother?

8. Your little siblings were always invited to your birthday parties and play dates.

My little brother didn't care that he was at my all girl birthday party.

9. No matter how much they annoyed you, you still loved your little siblings.

7-year-old me is rolling her eyes at my brother's paper Pikachu.

While it's not always easy being the oldest sibling, you have to admit that it can sometimes be a lot of fun.