You are a girl, in Slytherin and you where in Slughorn's class making the amortentia potion when the professor spoke up.

Slughorn: Does anyone smell anything yet...?"

You: "All I can smell is Mattheo's Stupid as hell, Cologne." Mattheo looked at you with a smirk and then back at his potion.

Slughorn: "Alright. And Mr. Riddle, Do you smell anything?"