I'm working on writing a series of fanfiction on Shampoo, but have reached
a small block on procedure. I have only seen episodes up to the 2nd video
in the 4th Year series (Outta Control) Where Ranma masters the Hiyruu
Shouten Ha, the OAVs and the movies. 

To get to the point:

Would Ling-Ling and Lung-Lung know about Shampoo's Cursed form? And if not,
how
would they react upon knowing about it? 

I would appreciate any response. I would think they would know about it,
but there are scenes which suggest they don't. I just want confirmation on
this.

Souldrake