The clinic Alice arranged sat in a quiet stretch of Pasadena, chosen specifically for its distance from both Hollywood’s gossip circuit and anything traceable to Stark Industries.
A small private lab that handled celebrity paternity cases with the kind of practiced discretion that came from decades of exactly this sort of business, no press, no waiting rooms full of curious eyes, appointments scheduled under initials rather than names.
Rosalie had insisted on driving herself, refusing the car service Tony’s assistant, a sharp, efficient woman named Natasha Reyes, had offered to send.
“I don’t need him doing me any favors,” she’d said, chin lifted in the particular stubborn way Mark had learned meant the conversation was over.
Mark sat quietly in the back seat, watching the city slide by, running through the day’s variables one more time even though there was, by now, nothing left to plan for.
The sample collection would take minutes.
The waiting for results, three to five business days, according to the clinic’s paperwork, would be the actual test.
*Funny.
I can calculate orbital mechanics in my head and I still can’t do anything to speed this part up.*
The appointment itself was almost anticlimactic, a technician swabbing the inside of his cheek with brisk, practiced efficiency, barely glancing at him twice beyond a passing comment about how well-behaved he was for his age.
Rosalie sat rigid in the chair beside him throughout, her hand resting on his knee the entire time, like she needed the contact more than he did.
“That’s it,” the technician said, sealing the sample.
“Results should be ready within the week.
We’ll call the number on file.”
Rosalie thanked her with the kind of overly polite tension that meant she was holding something back, and didn’t relax until they were back in the car, pulling out of the clinic’s parking lot.
“Well,” she said finally, gripping the wheel a little tighter than necessary.
“That’s done, I suppose.”
“That’s done,” Mark agreed.
Neither of them said much else on the drive home.
The wait turned out to be worse than either of them had expected.
Rosalie threw herself into audition prep with a kind of manic focus that Mark recognized as displacement, memorizing scripts she didn’t strictly need to memorize yet, reorganizing the kitchen cabinets twice in the same week.
Mark, for his part, buried himself in *Twinfold*’s final development push, though even he found his concentration fraying more than usual, thoughts drifting mid-sentence toward a phone that hadn’t rung yet.
**[Kryptonian Physiology LV0 (210/500)]**
He kept up his quiet experiments regardless, lying in the backyard grass in stolen half hours, cataloguing the slow accumulation of points with the same discipline he applied to everything else, if only because it gave his mind somewhere productive to sit besides the waiting.
On the fourth day, the phone rang.
Rosalie nearly dropped a plate answering it, and Mark, sitting at the kitchen table with a half-eaten sandwich forgotten in front of him, watched his mother’s face carefully as she listened, her expression cycling through a dozen unreadable shifts before settling into something he couldn’t quite name.
“Yes.
Yes, I understand.
Thank you.” She hung up, set the phone down with exaggerated care, and turned to face him.
“Well?” Mark asked, and was mildly surprised to hear a genuine tremor in his own voice.
Whatever careful detachment he’d cultivated over the past week apparently hadn’t survived contact with the actual moment. Find the original chapter at g.com.
“They said the results have been sent electronically to both parties.
Mine’s coming to my email.” Rosalie was already crossing to the small desk in the living room where the household computer sat, hands not quite steady as she pulled up the browser.
Mark trailed after her, standing at her shoulder as the inbox loaded, a single unread message sitting at the top: *Cedar West Pediatric Labs — Confidential Results.*
Rosalie’s finger hovered over the mouse for a long moment.
“Mom.”
“I know, I know.” She clicked it open.
The report itself was dense with technical language neither of them particularly needed, loci comparisons, probability indices, the sterile vocabulary of certainty.
But the conclusion sat plainly enough near the bottom, bolded for exactly this purpose:
**Probability of Paternity: 99.97%**
**Conclusion: The alleged father, Tony Stark, cannot be excluded as the biological father of the tested child, Mark Payne.**
Rosalie made a sound that was half laugh, half sob, both hands flying up to cover her mouth.
Mark stood very still, staring at the number, feeling something strange and unfamiliar settle in his chest, not quite triumph, not quite relief, something more complicated that he didn’t have a ready name for even with a level ten Super Brain at his disposal.
*So it’s real.
Not a probability calculated from a hotel receipt and some blurry resemblance.
Real.*
“I knew it,” Rosalie whispered, tears spilling freely now, though her voice carried none of the old bitterness it once might have, six years ago, in a hospital room with a reporter who hadn’t believed a word she’d said.
“I knew it the whole time.
Six years, and I finally, *finally* have proof.”
She pulled Mark into a fierce hug, and he let himself sink into it, allowing the moment to simply be what it was without immediately calculating what came next.
“Mark, sweetheart, this changes everything.
He’ll have to acknowledge you now.
Really acknowledge you, not just some quiet letter and a paternity test behind closed doors.”
*Will he, though?* Mark thought, though he kept the doubt carefully out of his expression.
Confirmation was one thing.
A man’s genuine willingness to reorganize his entire life around a child he’d spent years actively avoiding was another matter entirely, and Mark had no illusions about which of those two outcomes was actually guaranteed by a piece of paper.
Still, he let his mother have the moment, unclouded by his own carefully hedged expectations.
She’d earned this much, at least.
Three thousand miles away, in a Manhattan penthouse considerably quieter than usual, Tony Stark stared at his own copy of the same report, projected large across the wall screen, Jarvis having pulled it up the instant it arrived.
Ninety-nine point nine seven percent.
He’d told himself, repeatedly, over the past week, that he was prepared for either outcome.
That he’d genuinely meant it when he’d told Jarvis he wanted certainty rather than probability, whatever the number turned out to be.
He discovered now, staring at the confirmation, that preparing for a hypothetical and actually absorbing the reality were two entirely different exercises.
“Sir,” Jarvis said, gently, after a long silence had stretched between them.
“Are you all right?”
“I don’t know.” Tony sat down heavily on the arm of the nearest couch, running a hand through his hair.
“I really don’t know, Jarvis.”
“For what it’s worth, sir, I don’t believe there’s a correct way to feel, in this particular circumstance.”
Tony let out a short, humorless laugh.
“Thanks.
Very helpful.”
He sat there a long while, staring at the number until it stopped feeling like data and started feeling like something closer to a verdict.
Somewhere out in Los Angeles, he had a son.
A five-year-old with a genius for hacking and game design and self-taught quantum mechanics, a kid who’d apparently built his own AI from spare parts and outsmarted a government surveillance team, all while Tony had spent the better part of a decade pretending the entire situation didn’t exist.
*A son.* The word sat strange and heavy in his chest, foreign in a way none of his usual vocabulary, weapons contracts, board meetings, press conferences, had ever managed to feel.
“Jarvis, get Pepper on the line.
And Rhodey too, if he’s not busy.”
“Right away, sir.
May I ask what you intend to tell them?”
Tony stared at the report a moment longer, at the small, clinical percentage that had just rewritten the shape of his entire life without asking his permission first.
“That I need help,” he admitted, quieter than he meant to.
“Because I have absolutely no idea how to do this next part.”
Outside the window, Manhattan’s skyline glittered against the coming evening, indifferent to the particular reckoning unfolding thirty floors up, and somewhere far below, unseen, the city carried on exactly as it always had, entirely unaware that one of its most famous residents had just, for the first time in his adult life, admitted out loud that he didn’t know what to do next.
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