Teddy Lupin and the Gross Letters (слэш)

“What’s up, Ted?” Teddy was an anxious boy, but even more so now, causing Harry considerably more worry than he’d have liked. 
“I got a package from my grandmother last night, you know how she likes sending me my mum and dad’s old things sometimes…” Harry nodded, focusing fully on Teddy now. “Well, I found letters. They were written to my dad. And, er— who’s Padfoot?”
Harry’s eyes went wide and his heart immediately cracked, he couldn’t imagine anyone not knowing of the great man that had died nobly to save Harry. 
“Padfoot? Oh, he was just one of your dad’s old school friends.”
Teddy looked skeptical. 
“I don’t know… if you read these letters, well, maybe you shouldn’t, I felt horribly invasive while doing so—” Teddy cut himself off and Harry thought he saw the small boy shudder a bit, the corner of his mouth tugged up into a smirk against his will.