Rule 34 Dev - 2boys 333shime assisted_exposure bite black_hair blood canon_crossdressing chinese_zodiac closed_eyes collar cow_boy cow_ears cow_horns cow_print cowbell crossdressing from_behind gay gintama gintoki_sakata hand_on_chest hijikata_toshiro male male_only official_alternate_costume pecs sharp_fingernails tiger_boy tiger_ears tiger_print tiger_tail toned toned_male torn_clothes undressing_another white_hair yaoi year_of_the_ox year_of_the_tiger|9298111432