Rule 34 Dev - anal anal_sex animal_genitalia anthro ass balls belly belly_expansion belly_inflation big_belly canid canine canine_genitalia egg egg_implantation expansion fantasy fin_the_fox fox genitals growth hi_res huge_belly inflation male male_only mammal mimic mimic_chest naked nude oviposition ovipositor_in_ass penetration penis pregnant pregnant_anthro pregnant_male rapid_pregnancy sequence solo_focus tail tentacle tentacle_penetration trapped ulvbecker|11967001504