Well if you mean the characters actually look like girls, this author has a lot of characters meant to look like girls:
http://www.mangago.me/read-manga/harem_de_hitori/
(Her style overall is on the more girly-looking side but it's yaoi)
Watanabe Asia also draws really pretty girly guys. :)
no no I mean like this http://www.mangago.me/read-manga/ai_to_yokubou_wa_gakuen_de/
or like this http://www.mangago.me/read-manga/dannasama_to_mitsugetsuchuu/
I'm just in love with all minami haruka's drawings
no no I mean like this http://www.mangago.me/read-manga/ai_to_yokubou_wa_gakuen_de/
or like this http://www.mangago.me/read-manga/dannasama_to_mitsugetsuchuu/
I'm just in love with all minami haruka's drawings
Maybe stuff by Ootsuki Miu. The art is more bold tho. :)
hmm.. ٩(๑❛ᴗ❛๑)۶ can anyone suggest to me yaoi mangas which the caracters are so beautiful I mean they're so pretty like girls ! pleaseヾ(☆▽☆)