Undo Send

Introduction:

It started with the wrong picture.

One accidental tap.

One hard cock sent to the wrong woman.

Stefan meant to turn on his lover.

Instead, he awakened something in an old friend.

Lea wasn't supposed to see it.

She wasn't supposed to like it.

She definitely wasn't supposed to reply.

But curiosity is a kink.

And confession is a game.

Now, each night they text, whisper, moan

Until the line between friends and something far filthier disappears.

They both know it can't go on.

They both know they'll go too far.

They just don't know how to stop.

********************************************************************************************

Chapter 1 "Unseen For Years"

(Stefan POV)

It was almost midnight when Stefan sent the photo.

He had the room lights low, only the glow of his laptop and the blue hue of his phone screen bathing the apartment in a soft, digital haze. The rest of the world felt distant. Silent. Wrapped in the kind of private late night stillness that encouraged mistakes.

His cock was hard he'd been edging for over an hour. The tension in his groin was matched only by the weird, breathless anxiety he always got when he flirted this far with someone new. That someone was Iva, a girl he'd matched with on Tinder four weeks ago.

Their conversations had skipped the usual small talk. A couple of gifs, an innuendo laced joke, and then full speed into filth. Iva was bold. She liked being told what to do. Liked making him beg. She'd already sent three videos this week alone teasing herself in different hotel beds. Tonight, she wanted him to perform.

"I'm soaking, and you're just teasing. I want to see it. You said it was big prove it."

He hadn't even hesitated. Took a breath. Sat back. Angled the camera. Framed it right: hard, veins visible, tip swollen and dark. One hand holding it at the base. Cropped just enough. No face. Just cock.

He attached the photo to the thread, grinning slightly at how far they'd come in just a month of texts.

[Photo Sent]

He exhaled, thumbed the message away, and immediately began to open Iva's thread again to write a follow up text something cocky. Something like "That enough proof for you?"

Then something didn't feel right.

His screen was still on Messenger. But... it wasn't Iva's name at the top.

Lea.

His stomach turned to stone.

Lea.

Fucking, Leaaa!!!

The girl he hadn't spoken to in three years. His friend from high school. The one who reappeared just a week ago after someone tagged them both in an old reunion post on Facebook. They exchanged a few casual "how've you beens," followed each other on Instagram, liked a couple stories. Nothing serious.

And now he'd just sent her a full, throbbing picture of his cock.

His heart seized. A horrible, cold flush ran through his whole body.

"Fuck." His voice was hoarse in the quiet room.

He opened the chat hoping, praying, somehow the message didn't go through.

It had.

✓ Seen.

She'd opened it.

He couldn't move. Couldn't even type. Just sat there, staring at the screen, his cock softening fast in his lap.

A minute passed.

Two.

Then...

[Text from Lea -- 12:07 AM]

"Uh... wow. That wasn't meant for me, right? 🤭"

Stefan stared. His hands moved to type and froze again. He erased the sentence twice before finally managing to send something.

[Reply to Lea -- 12:08 AM]

"Shit. Lea, I'm so sorry. That was a huge mistake. Wrong chat. Please ignore it."

His thumb hovered. He considered unsending the photo but it had already been up too long. She'd seen it. There was no undoing it now.

A new message came in immediately.

[Text from Lea -- 12:09 AM]

"Kinda hard to ignore. I saw everything. 😳"

He groaned and rubbed his face with both hands, trying to physically force his brain to reset.

[Reply to Lea -- 12:10 AM]

"I really didn't mean for you to see that. I was texting someone else. Please, forget it happened."

[Text from Lea -- 12:11 AM]

"Well, I'll try. But it's kinda burned into my brain now 😅

You've... grown up."

That last line hit him like a punch in the chest and the cock simultaneously.

He stared at it.

"You've... grown up."

Was she joking? Teasing? Flirting?

No. Couldn't be. Not Lea.

He and Lea had spent years as close friends. Had movie nights, late night study sessions, shared earbuds and secrets. And sure he'd crushed on her back then. Everyone had. But nothing ever happened. Not even close. Their friendship had never bent like that.

Until now.

[Reply to Lea -- 12:13 AM]

"Guess I owe you a drink to erase the trauma. Again, sorry for that."

She was typing.

Then she stopped.

Then started again.

Then finally:

[Text from Lea -- 12:15 AM]

"Honestly... no trauma. Just surprise. 👀"

He exhaled. This wasn't a disaster. Yet.

He smiled nervously and tapped back:

[Reply to Lea -- 12:16 AM]

"Guess I'm relieved you're not scarred for life lol."

[Text from Lea -- 12:16 AM]

"I've seen worse. But... never by accident. 😏"

Was that... a compliment?

[Text from Lea -- 12:17 AM]

"Also... who were you trying to send that to? Someone lucky, clearly."

[Reply to Lea -- 12:17 AM]

"Just someone I matched with. Tinder girl. Bit wild."

[Text from Lea -- 12:18 AM]

"Wild seems... accurate. 👄"

[Reply to Lea -- 12:18 AM]

"Are you teasing me now? That really doesn't help the embarrassment."

[Text from Lea -- 12:19 AM]

"Maybe just a little. You're cute when you panic."

His pulse jumped. That was a flirt. Soft, but unmistakable.

He shifted on the couch. His cock twitched faintly back to life just from her messages.

[Reply to Lea -- 12:19 AM]

"Didn't realize my cock pic would score me compliments from an old friend."

[Text from Lea -- 12:20 AM]

"Well... let's just say, if that photo had been meant for me... I probably wouldn't have minded."

The moment froze.

Stefan's mouth went dry. His fingers hovered again over the keyboard, trembling just enough to notice.

He typed, paused, erased.

Then:

[Reply to Lea -- 12:22 AM]

"What would you have said if it had been meant for you?"

No answer.

Not for a full minute.

Then...

[Text from Lea -- 12:23 AM]

"I guess you'll have to send me another one to find out."

*****

Chapter 2 "Didn't Hate It"

(Lea POV)

Lea didn't sleep.

She told herself it was because of the wine. Or maybe the blue light from too much late night scrolling. But that wasn't true.

It was the picture.

His picture.

She kept checking her phone like it might disappear, like Messenger would take it back. But it didn't. It sat there in her chat log, bold and unmistakable, just above Stefan's panicked apology.

And it wasn't even the picture itself well, not just that.

It was the fact it was Stefan.

It made no sense. He was Stefan. Her old friend. Her safe zone guy. Her goofy, fast talking, skinny jeans wearing partner in crime back in senior year. They used to watch horror movies together and text memes at 2 a.m. He was never sexual in her brain. He just... wasn't.

Except maybe, he had been, once.

And that thought hit her like a drop of ice water melting down her spine.

She got up from bed and padded barefoot across her apartment, wrapping her cardigan tighter around herself as she leaned on the kitchen counter. She poured another splash of wine even though her cheeks were already warm.

The thought kept replaying: the moment she opened the message, expecting some meme or video clip. Instead... thick. Hard. His hand gripping it like he owned it. No angle tricks, no filters. Just raw, heavy heat. Bold and direct.

She had gasped, a real one, when she saw it. Then covered her mouth like someone might've seen.

Why had it affected her like that?

Then, embarrassingly, she remembered something.

Senior year.

One of those stupid lunchroom rumors whispered behind hands, giggled between locker doors.

"You know Stefan, right?"

"I heard he's... packing."

"No joke, like thick thick."

She'd rolled her eyes back then. But she'd also remembered it. Not because she believed it. But because, in some small, secret corner of her brain, she'd wondered.

And now?

Now she knew.

And now she couldn't stop thinking about it.

Back in bed, she sat against her pillows, phone glowing in her lap. She scrolled past his apology texts again.

"Shit. Lea, I'm so sorry. That was a huge mistake. Wrong chat. Please ignore it."

"I really didn't mean for you to see that."

"Please, forget it happened."

She should've said nothing. Should've been chill. But something inside her wanted to poke it just to see what would happen.

So she typed:

[Text to Stefan -- 12:07 AM]

"Uh... wow. That wasn't meant for me, right? 🤭"

Then waited. Bit her lip.

He responded fast panicked, awkward, apologetic. Classic Stefan. Her smile curled before she could stop it.

So she teased him.

She didn't plan to flirt. Just... nudge him. Maybe remind him that she wasn't some shy little memory anymore. That she noticed. And maybe... liked what she saw.

But as the conversation went on, the tone shifted. He was nervous but also... interested? He kept replying. Asking what she would've said. And then...

"Guess I'm relieved you're not scarred for life lol."

"Didn't realize my cock pic would score me compliments from an old friend."

She felt heat pool low in her stomach.

She typed faster than she thought she would:

[Text to Stefan -- 12:20 AM]

"Well... let's just say, if that photo had been meant for me... I probably wouldn't have minded."

As soon as she hit send, she covered her face. Her heart was racing. Why did that feel like such a risk?

But it was thrilling. God, she hadn't flirted like this in years. Her ex Darren hadn't made her feel this hot in ages. Their last year together had been a graveyard of dead touches and long silences. No excitement. No tension. No voice in her ear whispering filth.

But now her phone was lighting up at midnight with the cock of someone she'd once trusted with her deepest secrets.

Maybe it was wrong. But God, it felt good to feel something again.

Her phone buzzed again.

"What would you have said if it had been meant for you?"

She bit her lip.

It was a dangerous question.

And she could either defuse the bomb or light the fuse.

She chose the latter.

[Text to Stefan -- 12:23 AM]

"I guess you'll have to send me another one to find out."

She didn't wait for his reply.

Instead, she turned off the lamp beside her bed, crawled under the covers, and slipped one hand between her thighs.

The picture flashed again in her mind bold, heavy, gripped tight in his fist.

Lea closed her eyes and let out a soft breath as her fingers found warmth.

Her phone buzzed again beside her.

But she didn't check it.

Not yet.

******

Chapter 3 "What Would You Have Sent Me on Purpose?"

(Lea POV)

It had been three days since Stefan's accidental message.

Three days since she saw him fully hard, cock gripped in his fist unfiltered, real, intentional for someone else but now permanently part of her. The image haunted her like a scent that clung to skin long after leaving the room. She kept telling herself she was over it. That she'd laughed, teased, made her point.

But then... she hadn't really stopped thinking about it.

It didn't help that every time she unlocked her phone, her eyes instinctively went to their chat thread. She hadn't initiated anything since that night. Not really. She left the last message like a challenge flirty, dangerous, safe enough to pretend was a joke.

"I guess you'll have to send me another one to find out."

He never replied to that one. Not directly. But the next day, he liked one of her older Instagram selfies. A photo from nearly a year ago her in a messy bun, licking ice cream, lips glossy and parted. Not a thirst trap. Not on purpose, anyway.

But after seeing his like on it, she'd stared at it again and... yeah. Maybe it kind of was.

Tonight, her head wouldn't quiet. She was in bed, a thin white tank top brushing her skin, no bra, a pair of tiny cotton shorts clinging to the top of her thighs. No makeup. Just her and her thoughts, legs tangled under the covers, phone glowing too bright against the darkness of her room.

She opened his chat.

No new messages.

But he was online.

Active just now.

She hovered her thumb over the keyboard. Thought about what to say. Deleted three versions of the same harmless "hey."

Then typed something else.

Paused.

Looked at it for a long time before sending.

[Text to Stefan -- 12:34 AM]

"What would you have sent me on purpose?"

There. She'd done it.

No joke. No emoji buffer. Just the question. Straight. Curious. Open.

Her stomach twisted with anticipation and guilt. But her nipples tightened beneath the tank top and she felt that warm, low ache between her legs that had started ever since that goddamn photo.

She closed her eyes. Just waited.

STEFAN IS TYPING...

The dots appeared almost immediately.

She swallowed.

Then they vanished.

Appeared again.

Paused.

Her pulse pounded in her ears like a drumline.

Then:

[Text from Stefan -- 12:37 AM]

"Are you sure you want me to answer that?"

A shiver chased up her spine.

[Reply to Stefan -- 12:37 AM]

"I wouldn't ask if I didn't."

[Text from Stefan -- 12:38 AM]

"Okay... but you have to promise not to freak out. We're friends. I don't want to ruin that."

Her fingers hesitated.

Then:

[Reply to Stefan -- 12:39 AM]

"We haven't talked in three years. Maybe it's not about being friends anymore."

It surprised her that she wrote it. It felt... heavy. Too real. But also thrilling.

He paused longer this time.

Then:

[Text from Stefan -- 12:41 AM]

"If that photo was meant for you, I would've sent it slower."

"I would've taken a video, honestly."

"Laid back. Hand stroking it."

"Saying your name."

Lea inhaled sharply.

Her thighs pressed together automatically. Her fingers brushed the edge of her shorts.

He wasn't teasing anymore. This was a confession.

[Reply to Stefan -- 12:42 AM]

"You would've said my name?"

[Text from Stefan -- 12:43 AM]

"Lea... I've thought your name while jerking off more than I should probably admit."

Her breath caught in her throat.

No one had ever said that to her before. Not even Darren, her ex, the man she lived with for two years. No one had ever said: I think of you when I touch myself.

It did something to her. Twisted something in her chest and flushed heat across her belly.

She stared at the screen, stunned. Then slowly slid her hand under the waistband of her shorts, heart thudding hard.

Her reply came before she could stop it.

[Text to Stefan -- 12:45 AM]

"What do you think about when you say it?"

A minute passed.

Two.

Then the typing dots came back.

[Text from Stefan -- 12:48 AM]

"Your mouth."

"Your lips when you're thinking."

"Your laugh. That thing you do with your tongue when you're teasing."

"I imagine you watching me. Kneeling. Or laying back, not touching, just looking."

"Sometimes I picture you saying 'don't come yet.'"

Lea was already wet. She pressed her palm down and exhaled into the silence of her room, biting the inside of her cheek to keep from moaning.

She knew she shouldn't. Knew it was a line. Knew it meant something else now.

But she wanted more.

So she typed:

[Text to Stefan -- 12:50 AM]

"What if I told you I was touching myself while reading that?"

[Text from Stefan -- 12:50 AM]

"Then I'd ask you if you want me to describe how fast I'm stroking for you."

She closed her eyes, legs parting slightly beneath the covers. Her fingers slipped lower, grazing slick heat.

She wanted to tell him. But something in her still held back.

So instead...

She opened her camera. Leaned back against the pillows. Bit her lip. Brought two fingers to her mouth and drew them across her lower lip, then slowly extended her tongue and let it slide over the tips.

Snap.

A photo her mouth only. Tongue out. Wet. Suggestive.

Her heart was slamming in her chest. But she didn't think.

She just sent it.

[Photo Sent -- 12:53 AM]

[Caption: "Does this help you stroke faster?"]

She tossed the phone beside her on the bed, flipped to her side, and let her hand move freely now. Inside the shorts. Inside herself. Stroking softly.

He would answer.

He had to answer.

And when he did, she knew she'd come with her phone in her hand.

*****

Chapter 4 "Text Me While You Do It"

(Stefan POV)

Stefan stared at the photo for a full minute before he moved.

It was simple. Unedited. Just her mouth pink lips parted, tongue just barely touching the tip of her fingers. Wet. Glossed. Soft.

But something about it hit harder than any full nude ever had. Maybe it was the restraint. Maybe it was the fact that it was her. Lea. And she wasn't sending him a body. She was sending him intention.

The caption was burned into his brain:

"Does this help you stroke faster?"

His cock was already half hard from their earlier conversation, but now it pulsed thickly in his sweats, urgent and heavy. He could feel it swelling harder by the second, his own body responding to her like it had been waiting years for this.

He sat there, in the dark, phone in one hand, the other resting on his thigh. Heart racing. Skin hot. Mind full of her mouth.

This wasn't just sexting anymore.

This wasn't Iva.

Iva his ever ready Tinder match was wild, playful, dirty in a way that felt like a performance. She liked him, but she didn't crave him. She sexted like it was sport.

But this? Lea's message wasn't polished. It wasn't filtered or posed. It was raw in a way that made it dangerous. That made him dangerous, too.

He thought of high school. Of all those late nights sitting next to her in his bedroom, watching horror movies on VHS and pretending not to notice how good she smelled. How her legs were always just barely brushing his. How her laugh lit up everything around her. He'd buried all of that. Called it friendship. Convinced himself it was over.

But now her tongue was back in his thoughts and not from a memory.

He shifted, let his hand trail to the waistband of his sweats. He pulled them down slowly, letting his cock bounce free, already thick and leaking precum.

The tip of it gleamed in the blue light of the screen.

He didn't even have to grip it. Just the thought of her mouth. Her voice.

"Text me while you do it," he whispered aloud to no one.

And then he did.

[Text to Lea -- 12:57 AM]

"Yes. I'm hard. And you're all I'm thinking about."

[Text to Lea -- 12:57 AM]

"Your mouth has me aching. I'm stroking slow, base to tip. Just enough pressure."

He slid his fist down the length of his cock, drawing in a slow breath, imagining her eyes on him. Her lips wet. Her voice trembling with want.

He let his mind go, fingers moving in smooth, practiced rhythm.

[Text to Lea -- 12:58 AM]

"I'm picturing you on your knees. Looking up. Not touching just watching. Mouth open."

[Text to Lea -- 12:59 AM]

"You tell me not to come. Not yet. You're smiling while I edge for you."

His hand squeezed tighter as he reread his own texts. He'd never written to someone like this. Not even Iva. This wasn't just sexting it was storytelling. Confession. Obsession.

He swiped to her mouth pic again.

Zoomed in.

Her tongue just slightly out. The bottom lip fuller than he remembered. His thumb brushed the screen like it could translate sensation.

[Text to Lea -- 1:00 AM]

"Tell me how you'd use that mouth."

Nothing yet. No typing dots.

He started stroking faster, couldn't help it now. The buildup was too much.