Shampoo, Of course!

I am! (If you're a Mousse Fan Girl)

I am! (If you're a Mousse Fan BOY)

Cologne (It'd be a love/hate relationship...)

Ryouga (They DO spend alot of time together in the bath...)

Any Random Chinese Girl

The next thing he walks into

Any of the Tendous (Soun included)

Ukyo Kounji

Musashi, from Pokémon (they could be meant for each other. Y'never know...)

Vegeta, from Dragon Ball Z

A Female Duck