Rule 34 Dev - 1girls asriel_dreemurr asriel_dreemurr_(god_form) big_breasts black_background blue_horn breasts female_asriel goat goat_ears goat_girl goat_horns goat_tail long_ears looking_at_viewer looking_back monster monster_girl mtf_crossgender rule_63 rusal32 simple_background tail toby_fox undertale undertale_(series)|7093439104