abs anus balls bara barazoku beach big_ass big_balls big_butt big_penis blush blush_lines bone butt dialogue flower gaping gaping_anus genitals green_body half-erect hands_behind_head lying lying_down male muscular nipples on_back penis petals plant seaside skeleton solo spread_legs spreading text text_box undertale_(series) vein veiny_penis white_face rulethony34tano_(director) undertale flowey_the_flower sans elemental_creature elemental_humanoid flora_fauna humanoid plant_humanoid edit