FURVERT!

alphys anthro anus avian backsack balls beak bent_over berdly big_anus big_butt bird blue_balls blue_body blue_feathers blue_perineum blush blush_lines bodily_fluids breasts bubble_butt buckteeth butt butt_focus cellulite dark_anus deltarune desk duo embarrassed eyelashes feather_tuft feathers female fingers freckles furniture genitals head_tuft hi_res huge_butt inside looking_at_viewer looking_back male narrowed_eyes nervous non-mammal_balls nude open_mouth open_smile overweight overweight_anthro overweight_female perineum pink_anus plump_labia presenting presenting_hindquarters reptile roccorox scalie short_tail signature simple_background smile sweat sweatdrop table tail tail_feathers take_your_pick teeth thick_thighs tongue tuft undertale_(series)vulva yellow_beak yellow_body yellow_skin yellow_vulva