you must be kidding... it is obvious tht she does what she does lately only as a show for the cams!. its not her sexual needs and it can be seen on her unexpressed face during their times... my personal conclusion for tht face during their sex could be explained by two thoughts which could be both or one of them.
my first thought was tht he is totaly clueless and tht he doenst have an idea what he has to do exept penetration. (i m now wondering if ever saw them kissing.....)
my second thought (and i expect all the haters to attack) based on her body shape her boob-job her way of dancing tht she could have been working (idk for how long) as a stripper/escort. i ve seen her face (boring) expressions only on professionals (escorts/strippers) faces who need 200% more foreplay in order to "start their engines"
but of course i could me wrong.