He closed the door to the payphone stall and dropped some muggle money into the slot. He punched in the numbers he had memorized by now. He tapped his fingers on his leg and leaned against the wall, waiting for her to answer. Her parents had given her a cell phone for over the summer so she had contact with them when she left the house.
"Hello?" He smiled hearing her voice. "May I ask who's calling?" He grinned and pursed his lips.
"It's Fred, Hermione." she didn't speak for a second, but she talked back eventually.
"Who is this, really?" He could hear it in her voice; she was already losing her patience. He tried his hardest not to laugh, succeeding and talking back to her.
"It's Fred. Fred Weasley. Remember me?" He paused and she started to speak again, but he cut her off.
"We're coming for you." He hung up and laughed, putting more coins in and dialing the same number. She picked up, obviously flustered.
"Who is this?!" She was breathing heavy, and he couldn't hold it in anymore. He laughed and held his side, trying to stop but failing. Hermione shouted at him. "Sirius?! Is that you?! What the hell is wrong with you?!" He stopped enough to speak a few words.
"C'mon babe, calm down!" He laughed again. "It was just a joke!"
"Well it wasn't funny!" She grumbled. He slowly stopped laughing and smiled, talking sweetly.
"Alright, I'm sorry. I called to ask you if you wanted to get some lunch together." he chuckled.
"Alright, you know where to find me." Sirius smiled and hung up, heading over to the library.