FURVERT!

2013 ambiguous_gender anal anal_vore basic_sequence belly belly_expansion big_belly black_and_white colon cutaway duo expansion feral flexure four_frame_image four_frame_sequence generation_3_pokemon generation_5_pokemon going_deeper_inside guts hi_res inflation inside_colon internal intestines linear_sequence longlevy monochrome navel nintendo organs pelvis pokemon pokemon_(species)rib_cage sequence simple_background snivy vore white_background zangoose