Rule 34 Dev - 2d 2d_(artwork) 2d_artwork anal anal_insertion anal_sex barefoot caretaker_au chara chara_(undertale) color condom cum_on_body dark-skinned_male dark_skin english_text gay gay_sex male/male male_chara male_focus male_only male_penetrating_male original_character skinny uncensored uncensored_penis undertale yaoi|11444013448