READ: Model goes braless on Los Angeles beach

Blac shared throwback photo of her 17-yr-old self, pictured smiling with chubby cheeks, and the caption:

"Girl bye Chubby face  17 years old."

The suave looking, and very endowed model may have lost her baby fat but looks pretty much as she used to.

Meanwhile, Rob Kardashian also shared a new photo of Blac, rocking a swimsuit, while expressing just how beautiful he thought she was.

The reality star who seems to find it difficult to keep their love for each other under wraps, gushed about her, commenting:

"Why she so pretty tho? lol  @blacchyna."

The couple who began dating about 2 months ago, have stuck like glue with each other, with Rob already playing step father figure to Blac's son, King Cairo.

READ: Reality star shares cute no makeup selfie of Blac Chyna

Who says a former model cannot have good things going for her too?

Watch video clip below.