Rule 34 Dev - abs anthro bdsm biceps big_muscles bodily_fluids bondage bound chain clothed clothing cum erection eyebrows fur genital_fluids genitals hair male muscular muscular_anthro muscular_male muscular_sub penis solo submissive submissive_male thick_eyebrows underwear amakuchi morenatsu juuichi_mikazuki american_black_bear bear black_bear mammal ursine hi_res|1717748025