Cute Charm is an ability introduced in Generation 3. So far, 3 Pokémon have this ability.
If a Pokémon with Cute Charm is hit by a move that makes contact, there is a 30% chance the attacker will become infatuated. It will not infatuate Pokémon of the same gender nor genderless Pokémon.
Infatuated Pokémon have a 50% chance of being
immobilized by love each turn and unable to attack.
Outside of battle
If a Pokémon with Cute Charm is the leading party Pokémon, the chance of encountering a Pokémon of the opposite gender is 2⁄3.
Pokémon with Cute Charm