It's not that she wouldn't mind at all, it's just that it makes for good blackmail material.
And god knows she'd never let him live it down, let alone not dangle it over his head every time she wants him to do something for her...
@criver
There's still some legal questionablity when it's a quid pro quo kind thing, and trust me when I say she'd never let him do it without taking several pictures before hand...
@kevadu