Rule 34 Dev - 2boys abs black_hair brown_hair bulge demon_slayer earrings erect_nipples facial_mark failuu fundoshi gay green_eyes inosuke_hashibira kamado_tanjirou kimetsu_no_yaiba male male_only muscles muscular muscular_male nipples open_clothes open_legs open_mouth open_shirt pecs pectorals pink_nipples red_eyes scar spread_legs topless two_tone_hair underwear yaoi young younger_male|12190793728