Boy's reaction to mum's pregnancy announcement is the best thing ever

We love a good pregnancy announcement. Revealing that there's a new member of the family on the way is an exciting time for all. 

However, welcoming a new little brother or sister into the family can be difficult to adjust to if you're an only child. But this little boy handles it like a champ. 

In a recent Love What Matters post, an anonymous user posted a video of their 10-year-old son finding out that he's going to be a big brother to not one, but two baby girls. 

In the adorable footage, the boy unwraps a big containing a t-shirt. When he holds it up we can see that the words "Only Child" have been struck out with "Big Brother" written underneath.

"Big brother, what? What does that mean?" he asks in surprise. After the initial confusion the penney drops and his little face is priceless. 

"Well, this is new. This is really surprising to me." What a cutie. 

He's too quick and points to another box, which holds a clue to whether it's a boy or a girl. He pulls out a pink baby grow. 

But there's something else in the box, a second pink baby grow. And then it dawns on him: 

"You have twins?!" He's overwhelmed with emotion and starts crying and our little hearts can't take it. 

The Facebook reaction is nearly just as cute. With other commenters sharing their own stories of families with big age gaps: 

He's going to be such a good big brother!