Michelle Rodriguez is treating herself to an early birthday present -- Zac Efron -- the two were all over each other Monday during a night of hard partying in Sardinia.
Michelle -- who turns 36 Saturday -- and the 26-year-old "Neighbors" star hit up a club in Porto Cervo off the coast of Italy ... and if there was any doubt they're banging , well ....
The photog says Michelle was drinking and smoking and had to steady herself at times ... grabbing onto an overhead pole while Zac slobbered all over her.
