Yaoi with guys that have a lot of tattoos and/or piercings
http://www.mangago.me/read-manga/cover_up/?eYix
this! http://www.mangago.me/read-manga/piercing_hole/
http://www.mangago.me/read-manga/nights_before_night/Prequel: http://www.mangago.me/read-manga/mods/
Want to take a look as well
Yaoi with guys that have a lot of tattoos and/or piercings