Mexican Bath Tub

Ive been staring at this phote for like 20 minutes trying to think of a comment that really describes what im thinking, but im having the hardest time trying to figure out the story behind this picture. I thinking is this the way they shower, or are they warming up with some impromptu sex play in the shower? 

What ever it is, she is too damn big to be sharing a barrel with anyone. Is that a look of disgust on his face or is he having problems breathing cause her gut is crushing him?