Mia spent most of the day telling herself this was purely administrative. A cat needed a schedule. Schedules required negotiation. Negotiation, occasionally, required snacks and a table. There was nothing more to it than that, and she repeated this to herself with such determined frequency throughout the afternoon that by the time evening rolled around, she'd more or less convinced herself it was true -- right up until she caught herself changing out of her paint-stained sweater into a slightly less paint-stained one, and had to sit down for a second and interrogate that decision with the seriousness it deserved.

"It's about the cat," she told her reflection, unconvincingly, and went to answer the door anyway when it finally knocked, three even raps, exactly on time.

Lucas arrived the next evening at seven exactly, carrying a folder, a laptop bag, and, true to his word, a paper sack of snacks that turned out to be a disappointingly sensible assortment of trail mix and sparkling water.

"This is what you consider negotiation snacks," Mia said, peering into the bag.

"It's balanced. Protein, healthy fats, hydration."

"I meant, like, chips. Cookies. Anything with a mascot on the packaging."

"I don't generally purchase items with mascots."

"That explains so much about you." She waved him toward her small kitchen table, cleared for the occasion of what she was already privately calling The Barnaby Accords, and sat across from him as he opened the folder and produced a printed document -- typed, formatted, with numbered sections and a table of contents, for a document that was, ostensibly, about a cat.

"You made a table of contents."

"It's four pages. Organization helps."

"Organization helps," Mia repeated, flipping to it anyway, tracing a finger down the neatly numbered entries. "Section 6, Amendment Procedure. You have a procedure for amending the document about your cat's snack privileges."

"Circumstances change. Flexibility requires structure."

"That's the most Lucas sentence I've ever heard, and I've known you for four days."

"I'll take that as a compliment."

"Don't. It absolutely wasn't one." She said it lightly, but there was no real edge behind it, and both of them seemed to understand that the observation, however teasingly delivered, had landed somewhere closer to fondness than criticism.

"It's a cat, Lucas. Not a merger."

"Precision prevents future disputes." He slid the document across the table. "I've broken it into sections. Feeding schedule, litter maintenance rotation, veterinary responsibility, enrichment activities, and a dispute resolution clause."

Mia scanned the page, genuinely delighted despite herself. Section 1.1 established the scope and purpose of the agreement in language so formal she had to read it twice to confirm it was, in fact, about a single overweight cat and not a small municipality. Section 2 covered residency -- a rotating schedule Lucas had apparently modeled, loosely, on a shift-work template he used at the clinic, complete with a color key distinguishing Mia's apartment from his own. Section 3.2: Feeding Protocol. All meals must adhere to the caloric guidelines established by Dr. Vance's veterinary assessment (Appendix A). No exceptions for behavioral pleading, vocalization, or perceived hunger cues, which are historically unreliable indicators in this specimen.

"There's an Appendix A," Mia said.

"It's a chart. Weight targets over a twelve-week period."

"You made a chart for your cat's weight loss journey."

"It's a medically necessary intervention, not a journey."

"Everything's a journey if you squint hard enough." She flipped to the appendix anyway, half expecting a joke and finding, instead, an actual line graph, carefully labeled, projecting a gradual, achievable decline in Barnaby's body weight over three months. There was something almost touching about the amount of care in it -- not clinical distance, but real attentiveness, the kind of thoroughness that came from actually worrying about an outcome rather than simply documenting one. "This is genuinely thoughtful, Lucas."

"It's just good medicine."

"It's good medicine with feelings attached. You can admit that."

He didn't answer that directly, busying himself instead with smoothing a crease in the folder that didn't need smoothing, and Mia decided not to push, filing the small, unguarded moment away alongside the others she'd started, without quite meaning to, collecting.

"You called your own cat 'this specimen.'"

"It's accurate terminology."

"It's the least romantic sentence I've ever read. Do you talk about your patients like this too? 'The specimen presented with a swallowed sock'?"

"Clinical language exists for a reason. Precision reduces error."

"Precision also reduces charm, but I guess you can't have everything."

"I'm not attempting to be charming. I'm attempting to keep a twelve-pound cardiac patient from developing diabetes."

"Sure, sure. Very unromantic. Very noble." Mia grinned at him over the top of the document, delighted by the visible effort it took him to maintain a straight face in the face of her teasing, the specific tightness around his eyes that suggested amusement he refused, on principle, to display outright.

"It's the least romantic sentence I've ever read." She grabbed a pen from the mug on her counter and, with great ceremony, wrote directly beneath Section 3.2: Barnaby retains the right to unlimited emotional support snuggles, regardless of caloric considerations, if he is Sad.

Lucas leaned over to read it, and something in his expression -- carefully neutral, professionally composed -- twitched at the corner. "'If he is Sad' is not a defined term."

"It's self-evident. You'll know it when you see it."

"That's not how legal documents work."

"This isn't a legal document. It's a vibes document with some structure."

"It has a table of contents."

"Vibes with organization, then." She kept writing, adding a new clause beneath his enrichment section: Section 4.3(a): Barnaby has full and unrestricted access to television after 9 PM, particularly nature documentaries featuring birds, as this is scientifically proven to bring him joy.

"That's not scientifically proven," Lucas said, reading upside down.

"It's proven by the fact that he stared at a hummingbird video on my phone for eleven straight minutes last week and didn't blink once. That's basically a peer-reviewed study."

"A sample size of one observation isn't a study."

"It's a vibe study. Different methodology." She capped her pen and looked up at him, delighted by the visible effort it was taking him not to laugh, the muscles in his jaw working overtime to keep his expression appropriately serious. "Your turn. Add something."

Lucas took the pen, studied the document for a long moment, and then, with the same careful precision he brought to everything, crossed out her television clause entirely with one clean line and wrote beneath it: Section 4.3(a) — REJECTED. Screen time will be limited to fifteen minutes, supervised, for behavioral enrichment purposes only.

"You rejected my clause."

"It's not evidence-based."

"Neither is 'caloric intake' as a personality trait, but here we are."

"That is a medically relevant term."

"It's a mood, Lucas. It's a whole mood, and you're not seeing it." Mia snatched the pen back, laughing, delighted by how easily the laugh had come, how little effort it had taken compared to the careful, guarded version of herself she usually presented to near-strangers, and the two of them spent the next twenty minutes locked in an increasingly absurd editorial war over a four-page document about a single cat's living arrangements -- Lucas crossing out her more whimsical additions with clinical finality, Mia countering with new clauses even more elaborate than the last, until the margins of the page were crowded with crossed-out amendments, counter-amendments, and, in one corner, a small doodle Mia had added of Barnaby wearing a tiny judge's wig.

"What is that," Lucas said, squinting at it.

"That's the Honorable Judge Barnaby, presiding over all future disputes arising from this agreement."

"You drew our cat as a judge."

"Our cat," Mia repeated, and something about the phrase, said so casually, so automatically, made both of them pause for half a beat too long, the air in the small kitchen shifting almost imperceptibly.

Lucas recovered first, clearing his throat and looking back down at the document with slightly more focus than the moment strictly required. "The custody rotation," he said. "I was thinking alternating weeks, but given his stress response to full separation, maybe alternating days would serve him better."

"Alternating days works for me. I'm around most of the time anyway."

"I'll need access to feed him on my mornings even if he's staying at your place. Before six."

"Absolutely not."

"Mia."

"I'm not letting you into my apartment at 5:45 in the morning to feed a cat who will happily wait until seven like a normal creature."

"His metabolism doesn't operate on a normal creature's schedule. He needs consistency."

"He needs to learn patience. It's a valuable life skill."

"He's a cat."

"Everyone can grow, Lucas." She said it with mock solemnity, and this time, finally, something in Lucas's careful composure cracked entirely -- a real laugh, short and startled out of him, like it had escaped before he'd had time to review and approve it. It transformed his whole face, softened the sharp, controlled lines of it into something younger, more open, and Mia found herself staring slightly longer than the moment called for, caught off guard by how much she liked the sound of it.

"You're smiling," Mia said, delighted, pointing at him with the pen like she'd caught him committing a crime.

"I'm not."

"You absolutely are. Your whole face is doing something. It's very unsettling, actually, seeing you enjoy yourself. I might need a minute."

"I enjoy myself regularly."

"Name one time."

"I enjoy structured spreadsheets."

"That doesn't count, that's a personality disorder, not joy."

"It's a preference for order. There's a difference."

"Sure there is." Mia leaned back in her chair, studying him with the frank, unhurried curiosity of someone who had decided, somewhere in the last hour, that this particular argument was more fun than almost anything else she could be doing on a Wednesday evening. "Okay, real question. When's the last time you did something just because it was fun, not because it was efficient or evidence-based or good for your metabolic panel."

Lucas considered this with visible, uncomfortable seriousness, the specific discomfort of a man being asked to produce data he didn't actually have on file. "I went hiking last month."

"For fun, or for cardiovascular health."

"...Both, technically."

"That's not an answer, that's a cop-out."

"Fine." He set down his pen, something in his posture loosening slightly, like he was allowing himself, briefly, to step outside the careful frameworks he usually operated within. "I used to play guitar. Badly. In college. Haven't touched one in years."

"Why'd you stop?"

"Residency. Then the clinic. There wasn't room for things that didn't have a clear return." He said it plainly, without self-pity, like he was simply reporting a fact about his own life he'd long since stopped examining too closely, and something about the flat, matter-of-fact delivery made it land harder than if he'd said it with any visible regret at all.

"That's kind of sad, Lucas."

"It's practical."

"It can be both." Mia tapped her pen against the table, something in her chest going soft and careful in a way she wasn't fully prepared for. "You should play again sometime. I bet you're not actually bad. I bet you're just rusty and calling it bad because rusty doesn't fit your whole precision thing."

"I don't have a guitar anymore."

"Convenient excuse."

"It's not an excuse, it's logistics."

"Everything's logistics with you." She said it lightly, teasing, but there was something underneath it too, an observation she meant more sincerely than the tone suggested, and Lucas seemed to hear both layers at once, his expression settling into something quieter, more thoughtful, before he picked the pen back up and steered them both, deliberately, back toward the safer ground of Section 5.

"Fine," he said, still half-laughing. "Seven. But I'm setting an alarm to check the feeding log remotely."

"You're going to remotely audit my cat parenting."

"I'm going to remotely verify compliance."

"Same thing, fancier words."

They worked through the rest of the document with steadily decreasing formality, the negotiation devolving less into legal drafting and more into a genuinely enjoyable back-and-forth, punctuated by trail mix and the kind of easy, low-stakes bickering that had, somewhere in the last twenty minutes, stopped feeling like conflict and started feeling like something closer to fun. By the time they reached the final section -- Section 7, Miscellaneous, which by that point contained four separate clauses about television privileges, one about acceptable nicknames (Lucas vetoed "Sir Fluffington" on the grounds that it undermined the document's credibility; Mia won an appeal to include it anyway, on a technicality involving whose apartment they were currently sitting in), and one, added jointly, at Barnaby's insistence -- there was a soft thump on the table.

Barnaby had jumped up from wherever he'd been napping and settled himself, with great and deliberate ceremony, directly in the center of the document, one paw planted squarely over the signature line at the bottom of the last page, tail curled neatly around his own feet.

Both of them looked at him. Then at each other.

"He's presiding," Mia said.

"He's sitting on our paperwork."

"He's presiding over our paperwork. Judge Barnaby has entered the chamber."

Lucas reached over, gently, and tried to slide the document out from beneath the cat's paw. Barnaby did not move, did not even open his eyes, simply exerted the exact amount of passive resistance necessary to make it clear that the document would remain exactly where it was until he decided otherwise.

"I think that's a ruling," Mia said. "Agreement approved. Signed, sealed, delivered, by executive cat order."

Lucas looked at the cat, then at the half-visible signature line peeking out from under one gray paw, then, finally, at Mia -- and something in his expression settled into an easy, unguarded warmth she hadn't seen from him before, not once, not even during the bookshelf rescue or the flashlight negotiation. "I suppose it is," he said.

They ended up signing it anyway, awkwardly, reaching around Barnaby's bulk to scrawl their names at the bottom of a four-page document that had started as a spreadsheet and ended up as something closer to an inside joke neither of them had expected to enjoy quite this much. Mia's signature was loose and looping, an artist's careless flourish; Lucas's was small, precise, each letter formed with the same deliberate control he brought to everything else. She watched him write it, something about the neat, contained shape of his handwriting lodging itself in her memory without her quite meaning to file it away.

"Well," she said, once the papers were signed and Barnaby had finally deigned to relocate to the windowsill, looking supremely satisfied with the outcome regardless of what it actually said. "I think that's the most fun I've ever had drafting a legal document."

"It's not a legal document."

"It's a vibes document with a table of contents, Lucas. Let it be what it is."

He looked at her, and for a long moment neither of them said anything at all, the kitchen quiet except for the low, contented rumble of a cat who had, by any reasonable measure, just won.

"I should go," Lucas said eventually, though he made no immediate move toward the door.

"You should."

"I have an early appointment."

"You always have an early appointment."

"It's a pattern," he agreed, and there was something almost rueful in the way he said it, like he was aware, suddenly, of how thoroughly that pattern had defined him before this week, before a cat with a heart murmur and a woman who drew judges' wigs on legal documents had wandered into it and started, quietly, rearranging the furniture.

Before he left, he lingered a moment longer than the folder required, standing in her doorway with his laptop bag over one shoulder, looking, for once, like a man in no particular hurry to be anywhere else.

"For what it's worth," he said, "I did enjoy that. The negotiating. Even the parts where you rejected every reasonable clause I proposed."

"I rejected the boring clauses. There's a difference."

"Caloric intake isn't boring, it's medically significant."

"See, this is exactly what I mean." But she was smiling, and so, unmistakably, was he -- an easy, unguarded expression that looked almost unfamiliar on his face, like a muscle he hadn't fully exercised in longer than he'd admit. "Bring your guitar next time. If you ever find it."

"I told you, I don't have one anymore."

"Then find a new one. I'll supervise. Very evidence-based supervision."

Lucas looked at her for a long moment, something warm and slightly bewildered in his expression, like he was recalculating, in real time, exactly how much of his careful, well-ordered life he was suddenly willing to let this woman rearrange. "I'll think about it," he said finally, which, from a man who rarely said anything he didn't fully intend to follow through on, felt like more of a promise than the words themselves let on.

He left a few minutes later, the signed agreement tucked carefully back into its folder, and Mia stood in her kitchen a long while after the door clicked shut, looking at the loose page of doodled amendments she'd kept for herself -- Judge Barnaby in his tiny wig, the crossed-out television clauses, the small, neat L. Vance signed at the bottom in handwriting she was already, somehow, certain she'd recognize anywhere.

She folded the page carefully and tucked it into the corner of her sketchbook, telling herself it was simply a funny keepsake, evidence of an unusually entertaining evening and nothing more -- and then spent the better part of an hour after that trying, and failing, to focus on anything else, her mind circling back, again and again, to a man who hadn't touched a guitar in years and the specific, unguarded way he'd said he'd think about finding a new one.