The Weasley brothers

You arrived at the brothers' shop. You were greeted by thousands of lights on the walls, the sweet smell of magical candies and drinks... Toys were flying along the ceiling. A crowd of people and voices were heard here and there. Looking at all this, you felt hands on your shoulders, as if the brothers had found you. You were startled and quietly turned around. You were at Hogwarts, which meant almost anything was allowed. So, the brothers picked you up and began tickling you with their hands.