#but i think i need to rewrite this with mac dealing with this sudden knee pain on a plane

[impossiblepluto]

Jack strolls into the house, heading immediately for the kitchen, and continuing the animated conversation that occupied the entire drive over. That he was alone in the car and upon entrance has gained an audience doesn't break his stride-- pace or verbal deluge. Mac's a smart guy, he'll pick up the topic and register his opinions-

Within the depths of the fridge, Jack stops short, bumping the back of his head as he quickly backs up, straightening, and staring intently into the living room.

Sitting on the sofa, Mac stares back. 

Jack crosses his arms as the refrigerator door swings closed. "What's wrong?"

Mac's gaze darts around the room as though searching for whatever raised Jack's hackles, before returning to Jack. "What do you mean?"

"Something's wrong." Jack takes a step toward the living room. He too scans the room, though his stare is slower, piercing and precise before lingering on Mac. 

"Something's wrong?" Mac repeats with an air of skepticism.

"Yeah. Why are you repeating me?"

Mac scoffs. "I'm not repeating you." Before Jack can retort, Mac shakes his head and continues. "I'm trying to figure out how you can walk in here, distracted by an argument you were waging against yourself, yet still apparently losing, barely look around and declare that something is wrong.” 

"Oh ho,” Jack leans a shoulder against the wall. “You are good."

"I'm good? Wait. No. I'm still not repeating." Mac squeezes the bridge of his nose. "I am just sitting here."

"Yeah,” Jack’s brow furrows. He straightens, feeling the pieces of the puzzle beginning to come together like he’s that one French detective from the movies Bozer makes them watch, and steps into the living room. “You’re sitting. On the couch."

"That is why I brought it. It's not just for you to sleep on."

"Sitting on the couch like a normal person sits on the couch. Not sprawled across it like a teenager with limbs askew in all directions just begging for back pain and bad posture.” 

Mac snorts but it lacks amusement. He doesn’t rise to the usual ‘tease Jack about getting old’ bait like he normally would. 

“So, you want to tell me what’s up?” Jack sits on the old trunk which doubles as a coffee table. 

"I... " Mac sighs and splices together three or four words under his breath.

Jack squints, tipping one ear closer to Mac, trying to decipher the mangled phrase. “Say again?” 

Looking up, Mac enunciates, "I tweaked my knee."

Jack winces. "Trail running? I told you you need some better shoes if you're gonna be out there jumping over logs and scaling mountains."

"I wasn't trail running." Mac pauses between his words as though each one is painfully eking out.

Jack cants his head.

"I stood up wrong."

Jack's face twitches. He's a government agent, damn it. He's got a better poker face than this.

"Shut up," Mac glowers.

"I'm sorry." Jack swallows his emotions. It’s not amusement. He’s not sure what emotion he would call it, but it’s sure not amusement. He’d never find anything funny about Mac getting injured. If anything, this emotion is concern. “You stood up... wrong?"

“It’s not funny.”

“No. It’s not funny. I’ve been sitting here thinking it’s not funny,” Jack defends himself. 

“You’re smirking.”

“I’m not smirking. I wouldn’t smirk if I heard you got hurt.”

“Even if I hurt myself by standing up weird?” 

“No.” 

“Oh. Thought maybe you’d see this as some sort of payback.”

“You mean for the fifteen years I’ve spent sharing my wisdom with you and you ignore it because you’re young and your joints still work like they’re supposed to and you couldn’t imagine waking up one day and suddenly something as simple as standing up can leave you limping and hobbling around for the rest of the day?” 

“Yeah.”

“Nah.” 

“Oh okay. Thought maybe it would be something like that.” 

“And I could see how you might think that. A less sensitive, empathetic man might.” 

Mac hums. 

“You need an ice pack?” 

“I’ve been thinking about getting one.” Mac sighs, looking toward the kitchen. “Don’t want to try getting up yet though.”

“Do you need a doctor?”

“No.”

Jack eyes him carefully.

“I did think about it-” Mac hurries to continue as Jack stares harder. “I want to wait it out. If I’m wrong you can gloat.” 

“I wouldn’t gloat either.” 

“Right. No smirking. No gloating. Got it. I’ll remind you.” 

Jack stands, knees creaking. “No smirking from over there either.” 

“No smirking.” Mac winces in sympathy at the sound. 

Jack pats Mac’s shoulder as he passes. 

“You were like my age when we met.” 

“Huh, I guess so. About a year older.” Jack grabs an ice pack from the freezer and returns to the living room. 

“I remember thinking you were ancient.” Mac reaches out to accept the proffered ice pack.

“Hey!” Jack withdraws his hand before the exchange is made.  

“At twenty-one you seemed old. Listening to the way you groaned when you got out of the humvee, that seemed a whole lot older than I feel now. Or at least older than I felt this morning.”

Jack nods in concession as he settles on the couch next to Mac and passes over the ice pack. Mac claps it on his knee. With a groan he raises his leg and positions it on a pillow.

“One day you’re able to sit all curled up like a pretzel, and the next you sneeze and can’t turn your neck for three weeks.” 

“I am almost sorry I teased you all these years.”

“Almost?”

“Well, I mean, compared to me you’re still like ancient. I have a few good years of teasing before it comes back to bite me.”

Jack opens his mouth to protest, then purses his lip. “You know, I’d grab that ice pack and run but honestly, watching you try to move that leg makes me hesitant to try it.” 

“It wasn’t fun.”

“Didn’t look like it was. Last thing we need is to explain to Matty how the both of us got taken out getting up from the couch.” 

Mac flops back on the sofa, blond hair splaying against the cushions. He drops his arm across his eyes. “That’s going to be almost as much fun as moving my leg.”

“I don’t envy that.” Jack leans forward with a grunt and scoops up the remote control. “Die Hard?”

Mac shrugs, eyes still covered by his arm. “Might as well. Don’t think I’m moving for a bit.” 

“Yippee-ki-yay.”