the_debt_of_time

"Why can't I have my wand?" Lily demanded. "James, why does you giving me a
Christmas gift entail Sirius disarming me?"
James laughed nervously. "Because, frankly, love, you've developed a pattern of
hexing first and asking questions later."
"Oh God." Lily grimaced and brought her hands to her mouth. "Is my gift alive?
Does it bite? Did you buy something off of Hagrid?"
At that moment, Mia's cat, Snuffles, attacked a low hanging Christmas ornament,
and it fell from the tree, shattering on the floor. The noise—mixed with anxious nerves—
caused Lily to scream and jump a good foot in the air.
James laughed sweetly at the look of horror on her face but recaptured her hand
and tried to draw her attention back to him. "You see this?" He pointed to a large silvery
scar on his elbow. "This is from the Stinging Hex you hit me with in fourth year after you
found out I wrote 'Mrs James Potter' all over your books."
Lily raised a slow eyebrow. "I remember. You used some sort of permanent jinx
and I had to buy all new books because I couldn't get it off. Alice and Mary kept teasing
me. Not to mention several other people," she added as her narrowed eyes turned to glare
at Sirius, Remus, and Peter—only the latter two looked ashamed.
"And this one here," James went on, redirecting her attention once again, pulling
up his robes and trouser leg to show the scar on his shin, "was from the Incendio incident
in third year when I nicknamed you 'wife' for three weeks."
Lily rolled her eyes and folded her arms across her chest. "I know. I maintain that
actually setting your trousers on fire was an accident, even though you had it coming. And
I've apologised for it. I hardly see the point of bringing it up years later."
James ignored her comments entirely and proceeded forward. "This here is my
favourite." He gestured with a grin, pulling back a section of his hair to show a lined scar
just behind his right ear. "It's where that Static Charm hit me fourth year."
"You deserved it! You proposed to me in front of the entire school! It was
embarrassing!"
"Which is exactly why I had Sirius disarm you." James grinned and looked over
Lily's shoulder to where Sirius was beaming at the couple, Lily's wand firmly in his grip.
Mia scooted closer to Remus, gripping his hands in excitement, eyes wide with
anticipation of something Lily had clearly not quite figured out yet.