Asstyn Martyn visits her doctor, Ace Bigs, about a problem she's been having. For some reason every time she shakes her ass, it gets bigger! Ace offers to measure her ass to see if he has any solutions. Next thing you know Ace is letting his BBW patient suck his dick as much as she wants, then fuck him on the examing table. Asstyn loves getting filled up and sucking on Dr. Big's cock and balls, seems she's going to need this treatment every week!