Children often experience a variety of emotions when their parents become pregnant again, so when these teenagers learn that their mother is carrying another child, their reaction is absolutely priceless.

When their parents revealed they were going to start a family again, Ana Mello, 20, and her brother Lucas, 17, were rendered speechless.

Their amusing responses to the news were captured on tape and circulated on social media all over the world.

The youngster appears to still be in awe and cannot believe what he is hearing, while the girl can be seen shedding happy tears.

When a new baby is brought home and everyone pitches in to help the infant feel at ease, it can be extremely frustrating for older siblings to find that they will have a new brother or sister.

Here is the video: