The two hotties got super handsy while lathering each other up with baby oil for a beach sesh in Santa Monica. Unclear why they ditched the sunscreen (maybe they took care of that before getting on the hot sand) but ... do you really care???

Guessing your eyes will be laser-focused on their teensy-weensy bikinis barely hanging on to their assets. Check out the pics ... they also held hands and enjoyed a little splash in the ocean. Nothing new for Cat, whom we spotted on the same beach not long ago.