2boys, alternate_costume, animal_ears, antlers, bara, beard, blush, christmas, couple, dark-skinned_male, dark_skin, deer_boy, deer_ears, face_to_pecs, facial_hair, fate/grand_order, fate_(series), fenman, full-face_blush, green_eyes, grin, hat, interracial, iskandar_(fate), jewelry, kemonomimi_mode, long_hair, lord_el-melloi_ii, male_focus, multiple_boys, muscular, muscular_male, necklace, pectoral_press, pectorals, red_eyes, red_hair, reindeer_antlers, revealing_clothes, santa_costume, santa_hat, smile, thick_eyebrows, upper_body, waver_velvet, yaoi