Guess the OTP meme

Done this before, but doing it again because I'm a sheep. (baaaaaaaaaaaaa)

► Pick up to 20 OTPs
► Describe them in less than (or equal to) 15 words.
► Have your flist guess the OTP

1) Different worlds, identical hearts. Alphonse/Alfons
2) Opposites attract. It'd work quite well if the spaz would stop long enough to realize. Doumeki and Watanuki
3) One tall, one tiny, a mutual love of pets. (Works best in future.)
4) Trumpet and flute. Not likely, but cute. Hihara Kazuki and Yunoki Azuma
5) Pure brotherly love and devotion. Emphasis on love and devotion. Elricest
6) Their alters are rivals, but they'd be sugary sweet together. Yuugi/Ryou
7) A maid has no place in high society, but they'll fight for their love. William Jones/Emma
8) A true OTP. Just ask their otaku friends (especially the mangaka)!
9) A childhood friend, a chosen warrior. He'll never stop saving her, no matter what trials await. Link and Zelda
10) Orange and white go well together.
11) Het yuri. No, really. Tsukasa/Subaru
12) A dancer makes for a rather different kind of pet. Sumire/Takeshi(Momo)
13) What does it matter if one of them isn't quite human? His boyfriend doesn't care. Tohya/Yukito
14) "'n m'wife." Sweden/Finland
15) The sun and the moon. Yuuri and MuraKen
16) They're the neighbours. Ignore them. Honey/Mori
17) Men onstage, women off. The eldest on the team, they might understand each other best. Maria and Kanna
18) GEEK LOVE. ...after the computer's shut down and the fretting over tests has ceased... Jou/Koushirou
19) Finding true love at an anime con. Christie and Matt
20) "MOMMYYYYY!!!!" Tamaki/Kyouya