Lil Bub, The Internet's Favourite Cat, Has A Baby Brother And They're Incredibly Cute

Lil Bub, aka Lillian Bubbles, took the internet by a storm a few years ago thanks to her loveable little face and sticky-out tongue.

Her parents have made her into an Instagram sensation, giving Grumpy Cat a serious run for her money.

And now she has a baby brother, it's almost too much cuteness for us to handle.

So this is Lil Bub...

A photo posted by Lil BUB (@iamlilbub) on Aug 23, 2014 at 10:22am PDT

And this is Lil Bub's dad...

A photo posted by Lil BUB (@iamlilbub) on Sep 5, 2014 at 10:01am PDT

This is Lil Bub's new brother, Rosco...

Quality BUB and bro time.
Posted by Lil Bub on Monday, 8 June 2015

Rosco and Lil Bub get on pretty well, and Lil Bub's settling into the big sister role comfortably...

Lil BUBFFs
Posted by Lil Bub on Wednesday, 27 May 2015

A photo posted by Lil BUB (@iamlilbub) on Apr 24, 2015 at 11:41am PDT

She's even getting used to heading on trips with the baby in tow...

A perfect example of how excited and active BUB gets on trips. Check out the vertical on BUB!
Posted by Lil Bub on Tuesday, 9 June 2015

SEE ALSO:
Vine Of The Day: Lil Bub Meets Grumpy Cat
Baby Meets His Mum's Twin And Has The Best Reaction Ever

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