Rule 34 Dev - 2boys anal_penetration anal_sex anal_uterus anal_womb animal_genitalia anthro belly belly_inflation dipodomyine duo duo_focus femboy genital_slit genitals goo_creature goo_transformation herm hermaphrodite heteromyid hi_res inflation intersex invasion kangaroo kangaroo_mouse likeable likeablemouse macropod male male_focus male_only maleherm maleherm_sans_pussy mammal marsupial mouse murid murine oral penetration penis prehensile_penis reptile rimming rodent scalie sex size_difference slime slit_play snake tentacle transformation unbirthing unusual_anatomy urethral uterus velux vore womb|12006781080