If there were any unattractive fat guys playing in the first place, the "hot girl with gem" (or the "hot girl with whatever prop she deems useful" for that matter) job opening would probably already have been filled.
Several times.
On the other hand, how would you like an attractive female...
Not being the dominant party in bed is one thing.
Hearing "Umph! You now turn around; me spank YOUR bottom!" from a half-naked, seven feet tall ape-woman shaped like a savage body-builder is entirely another!! :eek: