DISCLAIMER: Anything you recognise belongs to JKR.
"This is BRILLIANT!"
Peter grinned as Sirius flipped through their assigned reading for muggle-studies, trying to find more lines to torture their friend.
"Here's one," he said, quoting with an arm dramatically outstretched from his position sprawled on his back across Moony's bed.
"He that is stricken blind cannot forget; the precious treasure of his eyesight lost."
Peter saw Moony, who had actually read the thing before, wince and look up from rummaging through his battered trunk.
"But there he's talking about Rosalind. A better one would be 'She doth teach the torches to burn bright, it seems she hangs upon the cheek of night. Like a rich jewel-OW!"
Peter found his own laugh cut off by a second pillow from the bed nearest the door, followed by a disgruntled snort from behind the half-drawn curtains.
"Ah Prongs, stop sulking," Sirius called across the room with his usual grin. Peter noticed he hadn't got a pillow thrown at him; maybe because James knew Sirius would throw it back. "I'm sure she'll forgive you eventually. Maybe even before we finish school. Hey, if we quote these while she's nearby she might-"
"Don't you dare, any of you!" The face that appeared between the plush scarlet drapes looked stricken, his glasses askew and eyes slightly red, and for a moment Peter thought that his friend might actually be as in love with her as he said he was. Then Sirius snapped his fingers and exclaimed, "Wait, I've got it! 'What's in a name? That which we call a Lily by any other name would smell as sweet."
When he saw Prongs' mouth twitch in a smile at that Peter knew that it was safe, and was still all just a game.