Male Wigglytuff won't breed with female Jolteon in Pokémon

Hey I'm having a weird thing happening with my Jolteon Bulbapedia says at level 50 Jolteon can have up to 200 speed with max IV and EVs

Jolteon Bulbapedia, the community driven Pokémon

jolteon learnset Locations: Jolteon doesn't appear in the wild To get it, use a Thunder Stone on Eevee at any time This Pokémon naturally learns the following techniques (Red

jolteon bulbapedia JOLTEON! The Lightning Pokemon! Jolteon is a fan favorite amongst the eeveelutions