Looking for: Master - Slave - Pet (YAOI)

http://www.mangago.me/read-manga/leopard_hakusho/
http://www.mangago.me/read-manga/kimochi_no_yukue_meiji_kanako/
http://www.mangago.me/read-manga/love_me_hard/
http://www.mangago.me/read-manga/m_nano_baka_nano_hentai_nano/ This one isn't exactly a serious bdsm type manga, but you still might like it. Also if you don't mind paying for yaoi, you could check out Wicked Prison House on Renta.

One of my favorites in this subgenre for it's uniqueness on the master-slave situation:
http://www.mangago.me/read-manga/kishidou_club_bangaihen/

A literal take on master-pet: http://www.mangago.me/read-manga/if_dogs_could_also_walk/

Sorry for posting these one by one, my phone keeps refreshing the page every time I go look for a manga on another tab.

http://www.mangago.me/read-manga/meikon/
http://www.mangago.me/read-manga/kowarekake_no_omocha/
http://www.mangago.me/read-manga/yami_ni_tooboe_mune_ni_toge/

Human-Demon contract: http://www.mangago.me/read-manga/akuma_to_issho/

http://www.mangago.me/read-manga/yurusareta_uta/

Thank you:)

Thanks for all the help:)