Oh BOY...Gundam boys and Jusenkyo... 

Priest: [geeky and wimpy looking] "Whoever left this kettle of hot water here? I shall clean it up for them, before someone spills it on themselves and becomes injured." 
Pig: [wearing bicycle shorts, rams the priest] 
Priest: "Oh dear!" [spills hot water on himself, becoming Duo] 
Duo: "YEARGH! That's IT! I am NEVER drinking spring water AGAIN! What kind of SICK BASTARD sells spring water from CURSED SPRINGS, anyway!?" 
Pig: [snorts] 
Duo: "Gotcha." [pours water on pig, which becomes Heero] 
Heero: "Whoever it is, they're gonna pay." 
Duck: "Quack!" 
Duo: "Got it, you're next!" [pours hot water on duck, which becomes Wufei] 
Wufei: "Just one 'queer as a duck' comment, Maxwell..." 
Duo: "Hey, don't worry about it...you leave MY curse alone, I leave YOUR curse alone." 
Wufei: "Sounds fair. On to hunting down the perpetrator, then?" 
Duo: "Just one more..." [pours hot water on a nearby cat, which becomes Trowa] 
Trowa: "As much as I may like lions, those are BIG cats. Count me in." 
Heero: "That's it, then. Let's track the idiot down." 
Quatre: "Aren't you forgetting someone, guys?" 
Duo: "You weren't affected." 
Quatre: "EXCUSE me? I'm a GIRL now!" 
Duo: "You are?" 
Wufei: "I hadn't noticed a change. Anybody else?" 
Heero: "..." 
Trowa: "..." 
Quatre: "HELLO! Do I NORMALLY have THESE!?" [squeezes her bust] 
Duo: "Never really noticed 'em before...that's kinda unusual for me, I'll admit..." 
Wufei: "But everything ELSE seems the same." 
Heero: "Could've been strapping them down." 
Duo: "Hey, Trowa, you ever get to second base?" 
Trowa: "A gentleman never tells." 
Wufei: "There goes that idea." 
Quatre: "I am NOT a WOMAN!" 
All: [raise eyebrows] 
Quatre: "Usually." 
Heero: "Guess we have to take her word for it." 
Quatre: "HIS!" 
Duo: "Whatever." [throws away the last of the hot water] 
Quatre: "I-I needed that!" 
Duo: "No ya didn't." 
Wufei: "We all like you better this way. Less confusing." 
Quatre: "What's THAT supposed to mean!?" 
Trowa: "Cheer up, Quatre. At least this way, you can wear pink all you like and they can't complain." 
Quatre: ¬¬ "You're not helping..." 

Noin: So how is it around the house with Duo's curse? 
Hildie: It's AWFUL!!! One little splash and the next thing I know, he's being polite, PRAISES my cooking and actually cleans up after himself! I don't know if I can handle much more of this!!!
Noin: .... You're kidding.
Hildie [miserable]: He hasn't flipped my skirt in a week.
Noin: I think I may have a solution for you. I swiped this off Treize's desk earlier.
[Holds up the Acme Cataloge]
Hildie: You think they might have a cure?
Noin: Might as well. It has everything -else- in it...
[Later]
~splash!~
Duo: Wahooo!!! [Flips Hildie's skirt and goes running]
Hildie: Yippie!! I feel like a woman again! Come back here and do that again, ya crazy pervert!!! [Chases after Duo.]
Noin [reading bottle label]: 'Spring of Drowned Horny Pervert'. Wonder how Sally would take it if I splashed Wu Fei...