absanimal_genitaliaanimal_penisanthroballsbdsmbondageboundcage_muzzlecanidcaninecanine_genitaliacanine_peniscanischainchain_leashchained_to_wallcollardigital_media_(artwork)domestic_dogerectiongenitalsgerman_shepherdgradient_penishairherding_doghi_resknotleashleatherleather_collarlooking_at_viewermalemammalmilo_nettlemilo_nettle_(character)muscularmuscular_malemuzzle_(object)muzzlednipplespastoral_dogpecspenispink_hairshadedsinister_smilesittingsmilesoft_shadingsolospread_legsspreadingtexturlveinveiny_peniswire_basket_muzzle