I saw a post earlier that made me think of this. I want a manga were the two leads WANT each other a lot and yet are unable to do something because of either guilt/obligation/ etc. I want to feel the tension.

Kinda forbidden love-ish
but I want the two lead to attempt to do something (kiss w/e else) but stop because of backstory issues.

Example: Dengeki Daisy in general? NO. (could be okay if it was more mature and less shoujo)
But in some parts you could tell Kurasaki want to literally just grab her and hug or kiss her. You can FEEL it. But unfortunately because of backstory issues (Teru's bros death) he is unable to.

To sum it up for those who can't read:
-Sexual Tension (I literally want to grab and kiss you, but I can't b/c of issues)
-Must be felt by BOTH characters.
-No ecchi, no hentai.
-Yuri and Yaoi -_- If you must post them, do so.

THANK YOU

Kimi wa Petto should fit, and Believers as well though I don't think it's the kind you want. xD

i believe that's Kitagawa Miyuki sensei's specialty
try Tokyo Juliet, Seisei Suruhodo, Aishiteru and Tsumi ni Nureta Futari

Hmm... I know that there's this crazy chemistry between Holo (or Horo) and Lawrence in Spice and Wolf... I suggest watching the anime for it.

I guess Antique Romance works for your request (though I don't really like it that much...)
There's a sense of restriction in Black Bird... if you read it, you'll understand...

Oh yes!! I totally second Seisei Suruhodo, Aishiteru!! I'm craving for more releases -- zomg... it's so deliciously scandalous!!

why not try reading incest manga?

Bronze no Tenshi that's sexual tension. Keep reading till the middle when it started to be so good
Masca same like above
Silver (FUJITA Kazuko) Silver started to lure him, make him want her

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Help! I'm looking for... manga with dangerous guys http://www.mangaupdates.com/showtopic.php?tid=39874&pa ge=1#post594033

Yubisaki Milk Tea but it's ecchi

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I'm watching my TV, or is it watching me?

Hmm... Chobits?

Nana to Kaoru would be a perfect fit but its ecchi (but not much, you only see nipples)
if i were you i would give it a read, its exactly what you want plus SM.

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My name is Hans. <BR>Drinking has ruined my life. <BR>I'm 31 years old!

Tsumi ni Nureta Futari