2boys, abs, arm_hair, ass, bangs, bara, beard, blue_eyes, blush, brown_hair, chest_hair, completely_nude, dark-skinned_male, dark_skin, erection, facial_hair, feet_out_of_frame, hairy, large_pectorals, large_penis, leg_hair, looking_at_viewer, male_focus, male_pubic_hair, mature_male, messy_hair, multiple_boys, muscular, muscular_male, navel, navel_hair, nipples, nude, onsen, pectorals, penis, pubic_hair, scar, scar_on_arm, scar_on_chest, scar_on_leg, short_hair, steam, stomach, stubble, testicles, thighs, uncensored, veins, veiny_penis, yaoi