Does anyone know any yaoi with fetishes?

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

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

I know of ones that are definitely out there but not for the faint of heart.
I guess what I'm asking is what are the limits here?

A to Z fetishes and kinks list: http://www.mangago.me/home/mangalist/93704/

Oh my god you're a hero.

Ote o haishaku
Links

Hydra