The way this grandmother reacted is comical.

Rachel and Jordan Flom went viral after posting their pregnancy announcement online. The grandmother's reaction is hilarious, but exactly how we'd react if we found out this news.

In the video, Rachel is in the kitchen with her mum. They're looking at photos of her sonogram on a laptop when her mother realises they're marked, 'Baby A', Baby B', and 'Baby C'.

Rachel confirms to her mum that she is not only expecting triplets, but three boys.

Her mum starts screaming with shock and delight and the look on her face is just incredible.

Rachel's followers couldn't get enough of the video, which now has over 13 million views.

"She's on fire with excitement!!! I love her!!!" one said.

Another added: "The primal scream gets me every time. I bet it got those three boys too."

A third joked: "She’s screaming because she knows she is going to have to look after them at some stage."

One triplet-mum then said: "I have identical boy triplets too. They are now 14. When we told my mom she didn’t believe us. She thought my husband was joking. It took her about 10 minutes to actually believe we were telling the truth. My daughter was 10 months old at the time. It’s the best life now!!! I love it so much!!"

Watch the viral video here.

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