The most forbidden one....
I love my younger sister.

Nulla in mundo pax sincera
"Always go too far, because that's where you'll find the truth." - Albert Camus

Snow Drop

the rest have already been posted, plus, this manga is amazing =]

OtaniXKoizumi, Adorable Couple <3

1001 Nights..some of the stories relates to forbidden love. (also includes incest)
Hotarubi no Mori E
Hitsuji no Uta
DOLL: Ic in a doll <-- complex love between humans and androids. Very complicated!
Chobits

EDIT: lol, this thread was made a year ago O___O;;;;

[img]http://i268.photobucket.com/albums/jj11/obinrobin31/FINISHED2-Roger.gif[/img]
[color=black]The Hidden Agenda=[/color][color=red]Gol.D.Ace[/color]

[color=black]This Week's favourite:[/color]
DoLL (Okado Tatsuya)
Xp

Flower of Evil
and i second Angel Sanctuary