Mum doesn't reveal she's having twins... until AFTER the birth

When Theresa Slater and her husband found out they were expecting twins, they decided to keep it to themselves – for the entire pregnancy. 

Yup, by waiting until after the birth, the couple certainly gave their family one hell of a surprise – as can be seen from their immediate reactions. 

A few double takes, PLENTY of smiling faces, and even a suspicious question or two thrown in for good measure: "Did you know?"

But they were NOT the best responses of the day. 

No, you've got to wait until more family members come in – and see Granny's reaction.

Shocked? Appalled? For the first few seconds at least we're not sure, especially with the number of filthy looks that she throws.

And she's still in disbelief when more people walk in (yes, we are ALSO questioning the number of visitors this hospital lets in at a time!).

Theresa and her husband, who already have a daughter, show the reaction of every person who walks in the door, but Great-granny's is definitely the best.

A brilliant video that would almost make you wish for twins or triplets – well, until this clip that is:

The video is ten minutes long, but SO worth it!

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