Potters/Weasleys/Chang?
Malcolm approached his classmate slash housemate with a somewhat sheepish smile and his cheeks were slightly red. Why did his sister delight in torturing him? Well, like she knew. Maddie's mind was focused on business, not the social fears of her little brother. Making his way to the swarms of Weasleys and Potters, he opened his mouth pondering what to say like an idiot, "Um... hi, Rose. How was your... summer?" His voice cracked a little which made him wish the ground would swallow him up. That never happens in the stories. Never! Over the summer, he had grown a couple inches but not much had changed otherwise.