If they stick with the comic's rules that's true but I have seen some sue storm rule34 that has x-ray. I mean are we really going to to be pissed off if a porn creator does not stay true to source material?...Being invisible wouldn't make her phase stuff like a ghost. Once she starts blowing you, you're dick would keep disappearing too. Eventually when you cum you wouldn't see anything unless she opens her mouth to show you, which you would just see floating cum. If that's worth it then cool, but I feel you were imaging a more x-ray fetish type thing happening.