I want a manga with more story development over sexual stuff in yaoi manga or just a shounen ai manga is good too.

Manga like this
Super Lovers
Rin!

So basically with more story than sex or a very slow romance would be good.

[img]http://fc08.deviantart.net/fs71/f/2010/012/6/c/Natsu__s_Sig_by_TerryStarlox.png[/img]

Koimonogatari (TAGURA Tohru) Shounen-ai and fits your description to a T.
Yasashiku Oshiete
Hana wa Saku ka
Konya mo Nemurenai
Koi to wa Yobenai
Number Call Shounen-ai
Blue Sky Complex
Koi Nanka Shitakunai
Yuuutsu na Asa This manga is heavy in plot and talks about Japanese history in detail. So if you're not interested in things like that, this will probably bore you.

lιvιɴɢ ιɴ α yαoι woɴderlαɴd
-QaF-

most of these fit what I want I have read one of them I just don't like historical yaoi at all so I don't read it.

[img]http://fc08.deviantart.net/fs71/f/2010/012/6/c/Natsu__s_Sig_by_TerryStarlox.png[/img]

I just jotted down what came to my mind but you might find some plot-less works here. Most of them have action / adenture genre .....(I guess that makes the story stick to the plot)

Yaoi:
Acid town
Konya mo nemurenai
Totally captivated
Yellow
Yamada to shounen
Konbini-kun
Keep out (Kisaragi Hirotaka)

Shounen-ai:
Asterisk
Silver diamond
Jinjuu horetsuden
Gohou drug
Koimonogatari
No.6
Saiyaku wa boku o suki sugiru
Bokura no hentai
Canis
Kabe no naka no tenshi
Yume yume shinjuu
Gorgeous carat and related series

Genwaku no Kodou
Koori no Mamono no Monogatari
Concrete Garden
Hanamatsuri
So wa Reirei no Yuki ni Mai
Vassalord
Yasashii Ryuu no Koroshikata
Let Dai
Shingakkou - Noli Me Tangere
Tantei Aoneko
Afuresou na Pool
Eerie Queerie!
Yarouze!
Hanakisou
1999 Shanghai
Luo Xue Cheng Bai
Golden Days
COY
Komatta Toki ni wa Hoshi ni Kike!