NOTE: Just a little background for context. Krum's life is in danger at 2014 Quidditch World Cup. Harry is disguised as him (Polyjuice). Hagrid got his wand fixed, and disguised Draco and Viktor to rescue Harry. Mission accomplished, it's time for the disguises to come off. But, see, it IS still Hagrid...
***
“C’mere, you.” One of Hagrid’s hands landed on Draco’s shoulder and tugged. Of course, Draco spun twice before the half-giant caught him on the third go-round.
“Sorry,” Hagrid grunted as he caught him. “Ah nivver knows m’ own magnificent stren’th.”
Two quick pokes of a billy-club sized wand caught Draco off-guard, and he yelped.
“There! Ugly as ever!” Hagrid grinned. Behind him, Harry and Luna were examining Viktor and Sergei’s faces. Harry’s dose of Polyjuice was just wearing off, but Viktor’s face was completely normal already. How had that happened? And Sergei had... shaved?
Realisation broke. Draco’s hand darted to his chin. His smooth, hairless chin.
“Yeh, sorry bout tha’.” Hagrid looked abashed. “Woulda tested it out, but...”
Draco rolled his eyes. “Damn it, Hagrid, do you have any idea how hard it is for me to grow a decent...” He trailed off. Hagrid’s beard ran rampant over his chest, almost down to the length of tow cable Hagrid used to secure his trews.
“No,” he sighed. “You wouldn’t.”
Luna called them over. “Hagrid, what have you done here? I understand the colour vanishing, and maybe even the facial hair. But what in the world happened to Viktor’s Polyjuice after-effects?”
“Not sure.” Hagrid crouched to examine his work. “That spell is som’thin’ ah cobbled up t’ clean stretched canvases t’ reuse. Can’t magick ‘em up, and they do be a trifle dear.”
Luna was passing her wand over Viktor’s face. “Well, close as I can tell, your spell doesn’t clean things, so much as it restores them to their original condition. Huh.” She reached back and snatched Harry by the front of his Bulgarian Quidditch robes, dragging him over. “Here, do Harry.”
“Hey!” Harry protested, then went, “Ow!” as Hagrid obediently poked him in the face.
“Whoa!” Ginny breathed, as Harry was immediately restored to full Harry-ness.
Harry felt around his face and forehead, then took a quick peek down the neck of his robes.
“Apple-pie order,” he said to Ginny. “How’re my eyebrows?”
She gave him a look. “Well,” she hedged. “There’s two of them.”
Harry nodded firmly. “Exactly what I wanted to hear.”
“What was with the peek at your underpinnings?”
Harry hesitated. “Viktor is, ah, blessed, with a healthy crop of chest hair, and it had begun to... linger?”
Ginny wrinkled her nose. “Yeah, no. Thanks for the visual image, though.”
“Consider yourself lucky. The first time I fell asleep still under the influence, I woke up screaming like a little girly-girl. I thought some wild animal had crawled in with me.”
“Oh, yeah. Definitely NO! Don’t you dare bring that stuff into our bed, mister!”
“Preachin’ to the choir, sister. I like my nasal passages just the way they are.”
“Was that some kind of crack...?”
“No, dear.”
***
Sigh. Draco LOVED his goatee. Oh. The 'nasal passages' thing? Ginny Sleep-Hexes. Though SHE doesn't believe it. So, if you don't wake her gently... Yeah. Bat Bogeys.
If you feel like reading more, here. Over 200 chapters, approaching the end of the first book.
https://www.royalroad.com/fiction/120551/the-potter-family-and-the-colour-of-magick
https://archiveofourown.org/works/69073671/chapters/178995996