You were in Potions Class, and you weren't really paying attention to the lesson when Professor Slughorn asked you to step to the front and smell the potion.

"I can't, Malfoy's cologne is stinking up the entire classroom." I complained, looking at him.

Draco looked at you with confusion as he sneered,"It's your perfume that's stinking up the entire class."

Professor Slughorn smirked and said, "That potion is Amortentia. It makes you smell the person you are most attracted to."