It does say in the sheet that she has near instantaneous reaction speeds.

In regards to things you have to take for granted, well frankly it's impossible for the character to exist with that ability without certain physical abilities. Her body would have to be adapted for moving at that speed, in regards to bone density and muscle tone. The same way that Judgement has to have incredibly strong bones, to support huge weights. You just can't have the ability without these factors existing, it would be like saying you have to state a human has eye-balls when they can see. 

The mons pubis is basically the fleshy bit below your belly button and above your groin from what I vaguely remember.