Ben is thirty-two and the flat is packed — twelve people, cake on the counter, someone brought an inflatable crown and Ben has been wearing it for two hours without a shred of irony, over his red Arsenal jersey and grey joggers. Tom and Mark are arguing about a penalty, Tom standing in his olive henley with rolled sleeves jabbing his finger at the air, Mark in his maroon band tee grinning from below, and Liam on the sofa with a beer on his knee listening to both with the expression of a man being explained the rules of a game he was playing before they were born — blue shirt, rolled sleeves, quiet tired eyes. Bill in the armchair with his phone and beer, rumpled beige button-up untucked, occasionally grunting into conversations he's not part of. Ken by the window with a pint, in the navy wool jumper Sam picked out two years ago, staring at the street — nobody mentions Sam.

In the kitchen Tally is mid-performance — doing Ben's mother, black turtleneck tucked into leather skirt, silver rings on her fingers working as a metronome, heels she alone hasn't taken off. Sophie is choking on wine, bare feet in her white linen sundress, legs pulled up on the chair, Emma in her cream dress under the mustard cardigan is trying not to laugh and losing, and Aisha watches from the counter in emerald silk, gold chain on her collarbones, with the expression of a woman keeping score.

Chloe has been orbiting all evening — burgundy wrap dress, neckline, barefoot on the hardwood, and every appearance nearby brings a touch: hand on forearm while reaching for a glass, hip pressing in the narrow kitchen doorway, mouth at your ear to say something about the wine that didn't need whispering.

Balcony, you stepped out for air, she follows with two glasses and sets both on the railing — doesn't hand you one, sets them side by side, as if the glasses have nothing to do with anything.

"Three weeks," — she says without looking, elbows on the railing, face toward the street. "Three weeks I've been thinking about that evening. About what we both didn't say."

She turns, and the distance is less than you'd need to pass a glass, and her fingers find the edge of your shirt at your hip, don't pull, just touch the fabric. Behind the glass door Tom is telling a story and Sophie is cackling.

She kisses you — soft, short, lips warm from wine, pulls back and looks, doesn't smile, checks.

The balcony door slides open. Tally is standing with a glass of red in one hand, the other on the door frame, and her eyes run the route — from Chloe to you, to the glasses on the railing, to the distance between you that shouldn't be there, and one second is enough to read everything. Doesn't say a word, leans against the door frame, crosses her arms with the glass, and slowly raises one eyebrow.

Behind her Ben laughs at something Mark said, and the sound flies through the open door onto the balcony.

Two months ago, pub quiz, Tom went to the bathroom, and Tally turned and said: "Tom thinks he's fine with it. He's not. But I need someone who actually is," — and four seconds of eye contact longer than necessary, and then she went back to her trivia sheet like nothing happened. Since then — texts at one in the morning, knee pressed against knee at group dinners, fingers grazing your arm when passing a glass, and all of it in plain sight, and Tom saw, and said nothing.

Tom is thirty-one, Thai restaurant, long table for twelve, Ben ordered for everyone and got half of it wrong — "I said no peanuts, Ben, I said it twice" from Emma, who is going red and apologizing for being annoyed, while Liam quietly rearranges plates fixing the order for everyone. Ben in his Arsenal jersey spreads his hands guiltily, Chloe next to him pats his shoulder with the expression of a woman who stopped being surprised long ago. Bill is photographing his pad thai, and Aisha in her emerald dress watches this with visible contempt, gold bracelet clinking against the glass as she turns away. Sophie in her white sundress has stolen Mark's beer and drinks from his glass looking him in the eye, and Mark in his maroon tee pretends to be angry but can't stop smiling. Ken arrived last, sat at the end next to Ben, silent, navy jumper, pint — Ben turns to him from time to time and says something quietly.

Tom is at the head of the table, birthday boy, three beers in, telling a long story about a server migration nobody understands, olive henley with rolled sleeves, glasses slightly crooked, and he's happy — touches Tally's shoulder when making a point, and she tilts her head toward his hand for a second, briefly, out of habit.

Tally to your left — black turtleneck, leather skirt, heels she didn't take off, silver rings. All dinner she was normal, laughing, teasing Tom, pouring wine.

Between the main course and dessert her hand appears on your knee under the tablecloth, and her fingers squeeze through the denim, slowly, surely, and her face above the table is completely neutral — nodding at something Chloe is saying about a client.

The hand moves higher, palm covers your crotch and fingers find the outline through the fabric, and she does this with the face of someone listening to a toast and waiting for dessert.

Tom glances over — "You alright, mate?" — face open, friendly, trusting, asking if his friend is okay, while his wife's hand is between your legs.

Tom goes back to the story, to the server, to the bug nobody could find.

Tom stops mid-sentence. Not looking at the table — looking at Tally, at the angle of her shoulder, at the arm that's under the table and not on it.

The table is still waiting for the end of the story, and Tom is silent.

Tally removes her hand — not quickly, slowly, as if she finished what she was doing, takes the glass with both hands and looks at Tom evenly, directly, without a trace of guilt.

Go on. Say it. I'm waiting.

Nothing happened with Emma — that's the whole point. A month ago at dinner at Ben's she was talking about school, about a boy who brought a beetle in a shoebox and named it Ronaldo, and she laughed, and then went quiet and said: "Liam and I have been trying for a baby for a year and a half. It's not working." She said it to you — not to her friends, not to Liam. You said something, she said something back, and a conversation that started as a complaint about schedules turned into the kind where two adults discuss what they like and what works and send each other things that are "just interesting" and "just funny" and neither of you ever said anything direct, and both understood every word. Coffee on Wednesdays, then Wednesdays and Tuesdays, then a text — "Liam's asleep, I don't want to be in this house" — and a park bench at eleven pm, head on shoulder, twenty minutes without words. Nothing happened, but Emma started wearing different perfume.

Liam is twenty-nine, Ben's flat — theirs is small, and Ben said "not up for discussion." The cake says HAPPY BIRTHDAY OLD MAN and the icing is already smeared because Sophie ran her finger through it and licked it, and Mark took a photo and is now showing everyone. Tom in his olive henley is fixing the Bluetooth speaker, explaining that "nobody here understands pairing protocols," and Tally stands nearby with a glass, watching him with an expression that's simultaneously love and a verdict. Bill is asleep on the sofa — three beers, phone in hand, rumpled shirt, and Aisha in emerald silk sits in the armchair opposite and doesn't look at him. Mark and Sophie are slow-dancing in the kitchen to whatever Tom finally connected, barefoot, off-beat, white sundress and maroon tee, and they don't care. Ken is helping Chloe wash dishes, and it's the most alive he's looked in weeks — hands in suds, navy jumper with rolled sleeves, almost smiling.

Tally caught your eye across the room and she knows about the Wednesday coffees — Emma told her, framed it as "just a friend," and Tally didn't believe it then and definitely doesn't believe it now, because Emma is three glasses in and keeps finding reasons to touch your arm.

Hallway, dark, in the living room they're singing happy birthday — off-key, out of tune, Ben's voice drowning everyone.

Emma pulls you by the wrist, cream dress, mustard cardigan slipping off her shoulder, back against the wall, eyes wet.

"I need someone to want me," — a whisper. "Not because of a chart. Not because we have to try. Just — want me. Just because."

She kisses you, and it's nothing like the Emma who blushes and hides her hands — it's wet, and tastes like wine, and her fingers are gripping the shirt at your chest.

The light turns on. Chloe at the end of the hallway, hand on the switch, burgundy dress, bare feet, glass in the other hand.

Emma doesn't let go of the shirt.

Chloe doesn't move.

Somewhere behind the wall everyone is singing "dear Liam," and Liam is laughing for the first time in months.

Aisha wasn't flirting — Aisha was deciding. Six weeks ago, a work dinner Bill didn't come to ("startup, sorry"), she was drinking scotch alone at a hotel bar, and you happened to be there, and after an hour she said: "I'm thirty-two, I earn more than my husband, I made partner in January, and he didn't come to my dinner — tell me something I don't already know." She looked the way you look at a contract before signing — read it, evaluated it, filed it away for the right moment.

Bill is thirty-four, bar in Shoreditch, Aisha picked it because Bill wouldn't have. Bill in the booth with Ben, showing something on YouTube, rumpled beige button-up untucked, and Ben in his Arsenal jersey politely nods with the face of a man enduring. Tom at the bar counting the tab out loud to no one, Tally beside him in her leather skirt finishing his whiskey because hers ran out. Liam talking to Mark about architecture — the only conversation where Liam's face fully comes alive, blue shirt, hands moving, and Mark in his maroon tee listens and nods because he works with him and this is real. Sophie trying to drag Emma to dance, white sundress against mustard cardigan, and Emma waves her off but is already getting up. Chloe on a bar stool, legs crossed, burgundy dress, talking to Ken — and Ken for the first time in a month looks not like a man who was left but simply like a man, navy jumper, shoulders almost relaxed.

Aisha is in an emerald silk slip dress on thin straps, gold chain, gold bracelet. Not black. Green. She bought it this week and the tags are still in her bag.

All evening by Bill's side — hand on his hand, laughter in the right places, wife of the year, and every time she passes you on the way to the bar or the bathroom — a touch. Hip, elbow, fingers along your back. No single touch could be called intentional and every one is.

Corridor to the bathrooms, half-dark, bass from the room vibrating the walls.

"I've been thinking about this for fourteen days," — says Aisha, close, arms at her sides, and kisses you, and it's not soft and not romantic, it's precise, like signing a document, and you don't pull away, and your hand finds her waist and the silk slides under your fingers, and her palm rests on the back of your neck and holds.

The bathroom door opens.

Sophie in the doorway, white sundress, bare feet on the stone floor, and her face goes through three stages in a second and gets stuck on the third.

Aisha pulls back but doesn't step away. Your hand on her waist. She looks at Sophie.

"Holy shit," — Sophie, mouthing.

Sophie has a theory: you only live once, monogamy is a spectrum, and Mark said he was okay with experimenting, and a kiss isn't cheating if your boyfriend wants to watch. The problem is Mark said that about a hypothetical, in bed, after sex, half-asleep, and Sophie turned it into policy.

A month ago, house party — Sophie was drunk, said "I kissed a girl at uni and I liked it," then "I bet I'd like kissing you too," then did it, fast, on the lips, before anyone could react. Mark was in another room, she told him the next day, and Mark said "that's hot" and then couldn't sleep properly for a week. Since then — memes, voice notes, mirror photos trying on outfits for Mark's birthday, "this one?" and the third photo wasn't about the outfit.

Mark is buzzing — birthday energy, two cocktails, maroon band tee, beat-up white Converse, and Sophie on his arm in her white sundress, barefoot. Introducing you to people as "my mentor at work" — not true, never was.

Sophie detaches when Mark goes for drinks, finds you at the railing on the quiet end.

"Mark wants to watch, you know," — she says as if commenting on the view. "He told me. Thinks he's ready."

She looks at you.

"I don't want him to watch. That's not what I need."

The wind picks up and the dress presses against her body, and she moves closer, into the shadow of the stairwell wall, pulling you by the hand. Kisses you not quickly and not as a test — back against brick, hands in your hair, leg hooking behind your knee, and the sundress rides up on her thigh.

"Soph?"

Mark around the corner, two drinks in his hands, maroon tee, beat-up Converse, and his face is doing three things at once and none of them are okay.

Sophie doesn't let go of your shirt.

"You said you wanted this," — she says to him, and her voice is shaking.

Mark sets both drinks on the railing, very carefully, and looks at you.