Smuttiest manga you've read? Like....not a manga/manhua where they're doing one thing in a...

Yaoi, Yuri, or Ecchi? (⌒▽⌒)

Doesn't matter!!! Though I prefer yaoi

Yatamomo

（￣へ￣）Opens secret treasure box........
http://www.mangago.me/read-manga/blood_bank/
http://www.mangago.me/read-manga/love_neko/
http://www.mangago.me/read-manga/wagamama_wanko_no_shitsukekata/
http://www.mangago.me/read-manga/black_sun/
http://www.mangago.me/read-manga/bousou_kareshi/
http://www.mangago.me/read-manga/hidoku_shinaide/
http://www.mangago.me/read-manga/sex_therapist/
http://www.mangago.me/read-manga/kyokan_hunter/
http://www.mangago.me/read-manga/canvas_ni_kuchizuke_o/
http://www.mangago.me/read-manga/kuroneko_kareshi_no_asobikata/
http://www.mangago.me/read-manga/fudanshi_kun_no_honey_days/
http://www.mangago.me/read-manga/ten_count/
http://www.mangago.me/read-manga/nemuri_otoko_to_koi_otoko/
http://www.mangago.me/read-manga/hetalia_dj_aru_otoko_no_haiboku/
http://www.mangago.me/read-manga/taiyou_to_himitsu_secret_and_sun/
http://www.mangago.me/read-manga/coyote_zariya_ranmaru/
http://www.mangago.me/read-manga/kichiku_encount/
http://www.mangago.me/read-manga/razoku_no_hanayome/
http://www.mangago.me/read-manga/yarichin_bitch_club/
http://www.mangago.me/read-manga/h_jigyoubu_eigyou_ni_ka/
http://www.mangago.me/read-manga/sweet_heart_trigger/
http://www.mangago.me/read-manga/darkness_hound/
http://www.mangago.me/read-manga/you_re_my_loveprize_in_viewfinder/
http://www.mangago.me/read-manga/crimson_spell/
Here you go! I attempted to put stuff that is both "graphic" and isn't PWP. But you know, it's yaoi so......yah. Anyway hopefully at least one or two of these tickles your fancy. Fair warning: Some of them do have plot, but start off with random sex, because wtf not. (￣∇￣")
Enjoy! ლ(´ڡ`ლ)

it's difficult.
maybe
http://www.mangago.me/read-manga/kyuuso_ha_cheese_no_yume_omiru/
and it's sequel
http://www.mangago.me/read-manga/sojou_no_koi_wa_nido_haneru/

Definitely his manga (yaoi) called "pink no omocha" the pages went from 0 to 100 REAL quick

For me, this one is the best as smexy yaoi theme.
http://www.mangago.me/read-manga/nemuri_otoko_to_koi_otoko/