"Can you show me some magic that we can see?"
*fucking unimportant long explaination about magic and stuff*
"Ok, let me ask differently, Can you show me some magic that we can see?"
"Ah, should be no prob, *FIRE POOF*"
@MangaAddict69,
I'm sure that it become staple even before hentai. It's not even about "female heroine", it's about "cornered character that prefer death over dishonour". I saw tons of those from both genders and without "hentai" implication too, most used in scenes when somebody trying to get information from the character.