"Who can tell me what this potion is ? Yes, Mr Lupin ?"
"It's Amortentia, sir. The most powerful love potion ever. Its smell is different for everyone depending on what attracts them."
"Absolutely right, Mr Lupin ! Five points for Gryffindor. Now what do you smell ?"
"I can smell chocolate, fresh parshment and..." He stopped before mumbling : "And dog fur."
Remus tried to hide his blushing cheeks but thank Merlin the professor had already asked someone else.
"It smells like gingerbread and lilies," James replied after a Ravenclaw girl.
"Great. Do you see how strange and vicious this potion is ? Its adapted smell makes it very dangerous for it can trap everyone. Please tell us what you're smelling instead of laughing, Mr Black."
"Yes sir," Sirius sighed. "I can smell... sea and lemon. Old dusty books too," he added, winking at Remus.