*Ten months after giving birth to her first child, Amber Rose showed off her slimmed down frame on Instagram Saturday, writing “Before & After my baby boy Sebastian.”

Rose, 30, who welcomed her son with rapper Wiz Khalifa in February, shared a split-screen comparison of her baby bump before giving birth with a more recent photo. Wearing a figure-flattering gray tank and boy shorts, the new mom appears proud of her transformation in the selfie.

But she isn’t the only one with a changing body in the Rose-Khalifa household — even though he’s just 10-months-old, Sebastian is already making waves.

“Bash’s Doc said the rate he growing he’ll probably be 6’5! Wow! He’s 9 months & wears 24 month clothes He wore 3-6 mo when he was born :-),” Rose Tweeted last month.