Rule 34 Dev - 2022 anthro asriel_dreemurr blush bodily_fluids digital_media_(artwork) erection fur genital_fluids genitals hi_res horn humanoid_genitalia humanoid_penis linuell looking_at_viewer male male_only nude open_mouth penile penis precum simple_background sitting smile solo tail tongue undertale undertale_(series) white_body white_fur|8871612728