Star Trek is famous for slash. There are a lot of ST books with
a Kirk/Spock pairing. Harry Potter is going the same way these
days.
Just go down to the Scusa thread at Fictionalley Park and take your pick. You have
normal pairings, slash and even incest! Adding to the pot-pourri
are cross-generational pairings. Sometimes, it totally squicks
me.
My favourite pairing so far has been Harry/Ginny followed by
Ron/Hermione. Remus/Sirius may be slashy, but it just seems like a
cute pairing. Dunno why. hehehe