Rule 34 Dev - 2boys alternate_costume bite_mark bite_marks black_hair blood blue_eyes chain_leash chains cigarette collar fur_cape gay gintama gintoki_sakata halloween halloween_costume hijikata_toshiro looking_at_viewer male male_only marrbl open_pants pecs pointy_ears red_background red_eyes scars sharp_fingernails smoking suit toned toned_male topless_male vampire_costume werewolf werewolf_costume white_hair yaoi|10723636496