you and regulus black are partners for this potion class. Your work was to make a potion that would give your partner a potion that would make them more energetic. However, you might have made a little mistake.

Regulus , your potion making partner drank the potion you made and now he has grown cat ears and a tail

"What did you do.." he hissed, looking pissed off as he glared at you looking around his body..