An interesting story.  Unfortunately, I don't see Ranma killing Nabiki.  
If he's nuts enough to just murder her, I don't think he'd wait for the 
baby to be born.  Nor do I think would Ranma see killing Nabiki as the 
way to extract justice if he was sane.  Ranma isn't the killing type.  
Killing Shampoo for killing Akane, yes.  Killing Cologne for her part in 
it, yeah, I see that.  But I don't see him just murdering Nabiki, even if 
it is PARTLY her fault.  

So ultimately, I don't buy the ending.  

John Walter Biles :  MA-History, Ph.D Wannabe at U. Kansas
ranma@falcon.cc.ukans.edu      bailesu@bbs.arizona.edu  
http://bbs.arizona.edu:1080/~bailesu/falcon.html 

     P-chan ran across the field and hopped into Akane's arms.  She
snuggled her little pet.  "I love you, P-chan, especially with a little
apple in your mouth and that special sauce Ukyou makes."  They cooked
P-chan over an open fire and made special okonomiyaki out of him.  And
all was good.

--Draft of Lemon Sherbet, Episode 12