Reality star shares before and after weight loss photo, credits Blac Chyna

ALSO READ: Stars finally credit Blac Chyna for changing Rob's life

The photo collage shows Rob at his heaviest and what he looks like now, with the word, "BlacChynarmy" scrolled across it, as should be seeing as the 28-year-old model is responsible for his stunning weight lose.

The post obviously had Rob cracking up at his old self as he writes:

"LOL ‼ still got a lot of work to do and weight to lose but glad I'm getting better :):):)."

Blac had taken on the responsibility of helping Rob lose weight and it has been working awesomely well, except that their workout routines may have slowed down considering the fact that she is pregnant.

There nothing like love to turn a man's life around as the stunning changes in Rob since Blac had come into his life continue to be glaring.

ALSO READ: Star calls Blac Chyna "my motivation"

Watch video clip below: