Hmm, but since Ranko and Ranma have the same body, the two
potions will interact directly in his blood.  I wonder what sort of
unplanned side effects this might have.

Wait for it.  ^_^

I can see it now...

(Ranma-kun stands infront of bathroom mirror)

Ranma-kun:I've just got to see her again!

(grabs shower, turns on cold water)

Ranma-chan: (looking in mirror) AH! I've just got to see him again!

(grabs shower, turns on hot water)

Ranma-kun:Ah! I've just got to see her again!~

ad infinitum.. you get the idea ;)

Ryan