Sherlock Holmes+John Watson (JohnLock) -Sherlock-
Amy Pond+Rory Williams -Doctor Who-
Callie Torres+Arizona Robbins (Calzona) -Grey's Anatomy-
Sailor Mercury+Sailor Jupiter -Sailor Moon-
Sailor Moon+Tuxedo Mask -Sailor Moon-
Severus Snape+Lily Evans -Harry Potter-
and that's all I can name off the top of my head.