Cristiano Ronaldo's Miami Chick Posts Fitness Video

Cristiano Ronaldo's smokin' hot Miami makeout pal wants to share the love ... with a brand new workout video to help you get her world-class ass.

You remember Casi Davis ... the Florida-based fitness model who cuddled up and made out with CR7 poolside earlier this summer.

Well, Casi also happens to be a beast in the gym ... and has been puttin' in serious work to make sure her donk stays up to par for the biggest soccer star in the world.

Keep up the good work.