Any good manga? I'm okay with sexual content, but there has to be a while for the relationship to form, not just rush on( and then again, not a take a hundred pages xC) and the characters:
the uke can't be wayyyyyy too...uke-like I guess, but not too manly (>< dunno what I just said)
The seme can't be A MEANIE, marriad to his work type, EVER hurt the uke in any way or be UGLY XD ( to me, a LOT where 😮 ) soooooooooo, yeah...if you can work with that....oh, and PLEASEEEEEE no long tern comedy! Not too serious, but not stupid, either!

Do you have an example of something you like that fits your request?

Here's some with a decent, good-looking seme and a non-girly uke, in which the relationship develops at a nice pace.
Rakka Sokudo
Hachimitsu Darling - kind of married to his job, but not in a bad way
Arashi no Ato
My Life with You
Sorenari ni Shinken nandesu.
Don't Cry Baby
Kiraboshi Dial or Doushiyoumo Nai Keredo
Ikoku Irokoi Romantan

Are these the kind of things you're looking for?

So you'd like a nicely paced manga that's a good read? Hm...let me list a few of my favorites that you might like..

Harete Bokutachi wa + it's sequel Dokidoki renai
Yume Musubi, koi musubi (perfect pace)
Lucky number 13 (it isn't finished, but it's a seriously entertaining and cute read)
Tight Rope
Not equal (serious incest warning, can be quite angsty, but I found the plot and pacing to be unique and enjoyable)
I'm seconding Sorenari ni shinken nandesu
Koujitsusei no tobira
Non tea room
Itsuka koi ga kanau made