Rule 34 Dev - 1boy 4_fingers after_sex against_wall anthro asriel_dreemurr backsack balls blue_eyes blush bottom_asriel clothing comic_sans cum cum_in_ass cum_inside english_text erection fur furry furry_only girly hair hand_on_ass hand_on_butt helsy humanoid_genitalia humanoid_penis jewelry legwear male male_only necklace open_mouth partially_retracted_foreskin penis speech_bubble stockings teen testicles text text_bubble uke_asriel uncut undertale undertale_(series) video_games white_fur white_hair|636864