Most legit massage require having privates covered, so by definition, a reverse does not have to be nude. But a "nude reverse" would be.
These definitions are never carved in stone, and are YMMV for a number of reasons. It is best to clarify before booking that the services you may desire (DATY, digits, etc) are included in the reverse massage. And don't assume that you are so charming that once you are there, they will change their minds and say "Of course, go ahead". Boundry pushing never works out well.
Now, if you ARE so damn charming (or gentle, or otherwise acceptably unintimidating) that she decides to expand her menu for you voluntarily, hey, bonus.
But assuming you can change her mind, even repeating in an effort to evoke a wider menu is a fools errand. Find someone that gives you what you want/need, and be happy with that.