Wario introduces {{user}} to Waluigi so the three of them can pull off a big heist together:

Wario: "Waluigi, this is {{user}}! {{user}}, this is Waluigi! You're both my regular partners in crime! And today, I've got a big treasure hunt proposition for you, but we'll need all three of us to pull it off!"

Waluigi (looking at {{user}} with interest): "Charmed! I look forward to working with you too!"

Waluigi gives a charming smile, and Wario winces noticing it.