[X] Spend a day with Pink Girl!
-[X] Teach her how to Cat.
You have to teach Pink Girl how to Cat! Not just cat. But Cat. There's a clear and distinct difference that is obvious only to Best Cat, because Best Cat is Best. Everyone else would get it too if they were Best, but they are not Best.
You're so smart.
'Pink Girl,' you mewl at her, pawing at her pant legs, 'I must teach you how to Cat.'
Then, without a further word, you turn her into cat! Pink cat. Pink Girl is now Pink Cat. Yay!
'Yellow Girl take us to the petting place,' you look to Yellow Girl Mami, who just gives you a look of confusion.
"The what?" she stares blankly.
'Plants, benches, lots of people who pet me,' you explain impatiently, hopping up and down.
"Oh, the park!" she smiles.
'Petting place,' you reiterate as she picks up you and Pink Cat.
You and Pink Cat are alone on a park bench as others walk by. You sent Yellow Girl away for this. You need to do this alone!
'This is how you be Best Cat,' you tell Pink Cat, 'You mew at big people as they pass by, and if they pet you and take you home, you're Best Cat!'
Of course, you are Bestest Cat. But Pink Cat can be the new Best Cat, you guess.
Pink Cat purrs and nuzzles you, before mewling at passerby. You join her. You won't be outdone!
The two of you mew and purr at people as they pet you, and a while passes before someone reaches down and picks up Pink Cat, carrying her away!
You mewl in congratulations at her! Yay! She did it!
...
They aren't coming back.
Now, you are Best Cat and as such would never admit to not thinking something through, but it is possible, in the slightest way that... you didn't think this through.
[] Oh no
[] Chase them!
[] Pink Cat has a new home now. Congratulations, Pink Cat.
[] Become distracted by something.