4:5animal_genitaliaanimal_penisanthroballsblack_noseblue_backgroundblue_bodyblue_furcanidcanineclawsditto_(pokemon)erectionexpansioneyes_closedfurgeneration_1_pokemongeneration_7_pokemongenital_expansiongenital_transformationgenitalsgoo_creaturegoo_suitgoo_transformationgrowthhi_reshumanhuman_to_anthrolycanrocmalemammalmergingmid_transformationmidnight_lycanrocnintendonipplespainpenispenis_expansionpesimistpokemonpokemon_(species)resistingshiny_pokemonsimple_backgroundsnoutsnout_growthsolospecies_transformationtoe_clawstransformationtransformation_by_substance