Temple of Ranma's Sailor Senshi Seifuku

http://www.fanfiction.net/s/5574256/1/T ... dom_Reborn has Ranma time sharing with Serenity's mother (Ranma when he, Selene when she).

http://www.fanfiction.net/s/3578272/7/A_Surviving_Mau has Ranma at I think eight as of the most recent chapter.

There's also: Silver Sun by VentureH
(3ch/16kw)
2010
Incomplete, ongoing?
http://www.fanfiction.net/s/5871220/1/Silver_Sun

I seem to recall one where Mercury gets killed, and Ranma gets endowed with her powers. In the process, he accidentally gets her mind as well. The explanation in the story was that if their personalities had been more alike he would have just absorbed her, but the vast differences between them caus...

If I remember right, http://www.fanfiction.net/s/5953631/1/T ... _Interview has both Ranma and Akane as otaku.

http://www.fanfiction.net/s/4819770/1/O ... an_version has that in chapter seven.

There's http://ranmafics.com/Stories/Lines_of_D ... index.html that has it.

Talons: An avaricious claw grips at your very spirit, rendering you unable to tap into your truest power or the power of magical items until you make a significant gesture of generosity and receive a ritual to remove the lingering blight. In game terms, you can't use Encounter powers, Daily powers, ...

http://www.fanfiction.net/s/2544599/1/L ... r_Like_Son is a dead fic that has Ryoko from Tenchi as his mother.

http://www.fanfiction.net/s/179718/1/Ra ... Love_Story has this I believe. No one except Ranma knows about her being a male with a curse. If I remember right, both Akane and Sayuri act like you described.

Both http://www.fanfiction.net/s/3605736/1/Fist_of_the_Moon and http://www.fanfiction.net/s/3867046/1/P ... he_Planets and it's sequel have what you're looking for, I believe.

http://www.fanfiction.net/s/3795922/1/Visiting_Aliens has Ranma and Ranko sometimes separate, but at others be split personalities.

There is scene like that in a later chapter of http://www.fanfiction.net/s/26926/1/Destinys_Child . I think Michiru is tempted to play the Benny Hill theme while watching Ranma be chased around.

Ranma replaces a fallen Sailor Mercury in http://www.fanfiction.net/s/796212/1/Bl ... _For_Blood , it's either a dead story, or just not marked as complete.

http://www.fanfiction.net/s/4817913/1/Lord_Ranma has Pluto only in chapter one so far. She tries everything to get rid of Ranma she can think of, before just tossing him back in time and hoping he'll die there.