a little history:

Chubby chu walk in the forest looking for food and find this Stunky, he looks surpriced to see him swell, the Stunky ask to pichu if he can pull his finger, he explainhe try a move but fail.
Pichu don´t like the idea of do this but if he leave the stunky maybe he swell out of control and make a more worst stink...

what pichu can do?

[ ] leave the stunky [ ] wait for look if he swell more [ ] pull his finger [ ] rest on top of him

( Can someone explain to me about the relationship? Do they have to pull your finger and help you expel a gas?

Stunky and pichu belongs to Pokemon Company