>>1380297It is actually a open question if getting pregnant itself would mode lock Ranma. It makes a certain internal sense, since one of the tenents of the cursed springs is that none of the curses are THEMSELVES lethal to anyone. However it also seems consistant that as long as s/he transformed within a few hours of having sex there was no way she could get pregnant to begin with.
The Juusenkyo curses were fun, and Takahashi left a huge amount of material on the table when she walked away from the story.
The curses run on a combination of Karma and Yin/Yang theory. The bigger asshole you are the nastier your curse is likely to be.
Ranma was arrogant, but the shit that he went through was mostly the fault of his father, so he got off with simply changing genders.
Ryoga was arrogant, and also stubborn and narrow minded, he wound up as a pig.
Akane, being completely innocent, at least in matters regarding the Juusenkyo, and nearly losing her life because of it should have the "perfect curse"-she will now turn into her 16 year old self when splashed or rained on, but it will be years before the effects are noticable.