Favorite Couplings at the moment (SemexUke) (SemexSemexUke) (Italiic means topfavorite)

Hitman Reborn
Reborn/Lambo
Yamamoto/Gokuderu
Dino/Hibari
Anyone/Dino

Gintama
Kondou/Hijikata
Okita/Hijikata
Gintoki/Hijikata
Gintoki/Katsura

Bleach
Shunsui/Ukitake
Ichigo/Ishida
Isshin/Ryuuken
Ryuuken/Ishida
Renji/Ishida
Aizen/Gin
Ganjyu/Hanatarou
Ichigo/Hanatarou
Byakuya/Hanatarou
Renji/Byakuya
Ichigo/Renji
Urahara/Aizen
Aizen/Ukitake
Urahara/Ukitake
Byakuya/Ukitake
Ryuuken/Ichigo/Ishida
Ichigo/Renji/Byakuya
Shunsui/Urahara/Ukitake
Ichigo/Byakuya
Amagai/Ukitake
Ikkaku/Yamichika
Ichigo/Urahara
Urahara/Shinji
Shinji/Urahara
Ichigo/Shinji

Gundam 00
Lockon/Tieria
Ribbons/Tieria
Allelujah/Tieria
Lockon/Allelujah

Pet Shop of Horrors
Leon/D

Dragon Ball Z
Goku/Vegeta

Yuugioh
Yami/Seto
Atemu/Seto
Atemu/Seth
Seth/Seto
Bakura/Seto
Bakura/Seth
Bakura/Atemu/Seto

Final Fantasy VII
Cid/Vincent
Tseng/Rufus
Reno/Rufus

Code Geass
Schneizel/Lloyd

Soul Eater
Black Star/Death the Kid
Spirit/Stein (why do Americans like Stein seme?! He's an uke in Japan! UKE!)
Giriko/Justin
Giriko/Mifune

Saiyuki
Gojyo/Hakkai
Sanzo/Hakkai
Gojyo/Sanzo

Hunter X Hunter
Leirio/Kurapika

Neo Angelique -Abyss-
Rayne/Nyx

Loveless
Ritsu/Soubi

And possibly many, many others that will be discovered in the favorite fics section.

Favorite type of fic: Mpreg

NOTE: very picky about seme and uke positions.