EXCLUSIVE
Kiss-tiano Ronaldo????
Seems someone has finally tamed the tan stallion ... because
Cristiano Ronaldo was getting VERY up close and personal with a hot blonde in Miami this weekend ... and even planted a kiss on her!
The two were all about the PDA -- holding each other in the pool ... and literally getting on top of each other on the deck chairs.
At one point, a smokin' hot friend came over and began smackin' the lady on her butt -- and no one complained.
Despite all the attention, Ronaldo has yet to put her on his Instagram page -- so, it's not official ... at least not yet.
11:09 AM PT -- MYSTERY SOLVED!!!
The woman is Cassandre Davis -- a Florida-based fitness model who's racked up more than 500k instagram followers due to her ass-centric workout videos.
Shirtless Cristiano Ronaldo kisses model Cassandre Davis as they cosy up poolside
The footballer looks to be getting very close to the Instagram starlet while he was on holiday 
