wheew there's a lot...but this one was pretty good http://www.mangago.zone/read-manga/penthouse_xxx/
a lot of the popular ones are of that type actually
I guess this one is good http://www.mangago.zone/read-manga/bj_alex/?av=2
this one's a bit fucked up but if you like fucked up ٩(๑❛ᴗ❛๑)۶ http://www.mangago.zone/read-manga/may_belongs_to_me/
http://www.mangago.zone/read-manga/abarenbo_honey/
http://www.mangago.zone/read-manga/shishi_mo_kobamazu/
http://www.mangago.zone/read-manga/hapira_hajimaru/
http://www.mangago.zone/read-manga/royal_servant/?av=1
http://www.mangago.zone/read-manga/on_or_off/
http://www.mangago.zone/read-manga/hana_to_junketsu/
http://www.mangago.zone/read-manga/kono_ore_ga_omae_nanka_suki_na_wakenai/
http://www.mangago.zone/read-manga/totally_captivated/
Hope this helps (=・ω・=)
any manhwa recommendations that's about a girl/guy who was cold to their pair but then grew close to them. straight and yaoi are acceptable!! ^^ ٩(๑❛ᴗ❛๑)۶