The new mum-of-one was pictured splashing around with her tiny tot - whose father is rapper Wiz Khalifa - and looked adorable as she kissed and cuddled him in the water.
And apparently, Bash was eager to learn how to swim - despite not yet being 1 year old.
Amber captioned one of the sweet snaps: "My boy wants to learn how to swim at 7 months old.... So I'm gonna teach him."
In another photo the curvaceous model can be seen pouting while holding little Bash up in the air.
She also revealed that although her son is only 7 months old, he is growing at an incredible rate.
Alongside the picture she wrote: "My Munchie is only 7 months old and wears 12-24 months clothes! He's such a big boy.... He was born big."
But although Amber bombarded us with all kinds of cute mother-son shots on her Instagram this week, we couldn't help but notice that she'd switched up her shaved hairstyle too.
The 29-year-old socialite - who shot to fame after dating Kanye West - decided to have some fun with her short 'do by dying the edges black, so that they formed a bold and eye-catching outline around her head.
And she somehow manages to pull it off!
Amber is known for experimenting with her look and has proved on more than one occasion that shaved hair doesn't have to be boring.
Earlier this year she stepped out in super long wig that was dyed with a subtle pink shade and stretched all the way down past her waist!
What do you think of Amber's latest hairstyle? Let us know below, as the best comment each week wins £50!