You're out on the grassy fields walking along when out of the tall grass a Braixen pops up. She dashes at you from the grass and before you can make sense of what's happening she's hugging your leg and rubbing her face against you

She's biting her bottom lip smiling, looking at you with pleading eyes. Her tail is wagging. Braixen! Brai brai braixen... braixy~

You weren't expecting a wild pokemon to be so bold and willing to be caught. She's dead set on being yours it seems