Rule 34 Dev - abs androgynous arm_up black_hair blush blushing boxers bulge_through_clothing cute demon_slayer embarrassed emotionless hair hair_in_bun hair_up hand_up kimetsu_no_yaiba measuring muichiro_tokitou muscular_male nervous nipples petite pubic_hair shy small_bulge small_hips small_waist sweatdrop teal_eyes teal_hair thigh_gap thighs underwear unsure young younger_male|9984797008