Rule 34 Dev - 1boy armpit_hair azalien bare_chest bich_hoan bichhoan big_penis blonde_hair completely_nude cum cum_on_self demon_slayer detailed_background ejaculation erection gay genitals hand_on_penis kimetsu_no_yaiba looking_at_viewer male male_focus male_only muscular muscular_male nude nude_male on_back on_side one_arm_up painting_(artwork) penis pubes pubic_hair realistic rengoku_kyoujurou solo solo_focus solo_male sword thick_eyebrows two_tone_hair uncensored yaoi|6072146056