This boy's reaction when he found out he was going to be a big brother is so sweet

Just what you need to watch this morning.

Sarah Bromby shared this video of the moment her five-year-old son found out he was going to have a little brother.

And it's such a sweet moment - the boy even offers to let him share his bed.

"Is it in your belly?"

And props to Sarah for artfully answering the awkward question of "who made it?"