the only one that comes to mind is heru U are
BJ Alex
http://www.mangago.me/read-manga/hoshi_to_harinezumi/
http://www.mangago.me/read-manga/tashiro_kun_kimi_tte_yatsu_wa/
http://www.mangago.me/read-manga/you_re_my_princess/
http://www.mangago.me/read-manga/sonna_me_de_mite_kure/
http://www.mangago.me/read-manga/tadatada_suki_to_iu_dake_de/
http://www.mangago.me/read-manga/fukouchuu_no_shiawase/
http://www.mangago.me/read-manga/koi_wa_etude/
http://www.mangago.me/read-manga/shitteru_yo/
http://www.mangago.me/read-manga/shishi_mo_kobamazu/
http://www.mangago.me/read-manga/abarenbo_honey/
Not sure if these are exactly what you're looking for but I hope this helps.. ^^'
Boku no pico?
That man...is not sweet
Try these maybe:
http://www.mangago.me/read-manga/sonna_me_de_mite_kure
http://www.mangago.me/read-manga/shitteru_yo/
http://www.mangago.me/read-manga/yume_no_you_na_hanashi/
http://www.mangago.me/read-manga/koisuru_taka_wa_tsume_o_kakusu/
http://www.mangago.me/read-manga/kirei_ni_shiteyo/
http://www.mangago.me/read-manga/koi_made_hyakurin/
Forgot this one :
http://www.mangago.me/read-manga/senpai_danjite_koidewa/
i've been wanting to read a certain type of story where the main character looks scary or mean but is actually sweet or something i've only seen two like that but i've finished them and want more. could anyone recommend me some? (=・ω・=)