VIRAL VIDEO - Explosive reaction to pregnancy news

Kathryn could not contain her excitement
Kathryn could not contain her excitement

Little Kathryn Williams couldn't contain her excitement when she was told that she was going to become a big sister - with her reaction to the news not quite what her Dad expected.

You might expect big smile, clapping hands or maybe even a few tears when a little girl gets the news that she will soon have a little baby brother or sister to play with, but this was something a little different.

Kathryn bucked a trend as she popped out something that was not expected, as this video that has been watched by thousands around the world reveals.

Just incase you can't pick up what she says that makes her proud Dad burst into laughter....it is: "I farted!"