Chapter Text
Luna Loud's heartbeat thundered in her ears, panic almost overwhelming her. "Shitshitshit!" she hissed as she hit the delete button. "Stupid, stupid, fucking stupid!" she berated herself. She stared at the text 'message unsent' under her name in the family group chat where her mistake had been. "Why can't it just delete it completely? Stupid app."
Sweat beaded on her brow as the text 'Dad is typing' floated at the bottom.
'what was that?'
'I missed it.'
Some relief came over her as her dad confirmed he didn't see it. She unsent it almost as fast as she posted it. Now she just needed to come up with an excuse.
'Nothing daddy. It was an inside joke she meant to send me.'
Panic replaced with horror as ice cut through her brain and down her spine.
'Oh ok'
Dad responded to Lori's excuse for her. Lori saw it. "Of course she saw it," Luna realized, "Glued to her fucking phone even at college."
The chill of fear swelled out into her chest and filled the pit of her stomach as the notification showed for her private chat with Lori.
'Heyyy'
'filed attached'
Luna swallowed hard and steeled herself. First text wasn't a 'WTF' or an outright threat but the extra 'y's in the message still spoke of a hidden dagger. She flipped over to the chat and saw the pic loaded. Instead of the cool concert pic she'd found and wanted to show everyone was the mistake she selected instead.
A selfie of her and her little brother, at night in his bedroom. Luna nude except her accessories and panties, Lincoln seemingly in his pajamas but you could see his underwear on the bed behind them. Half hugging, Lincoln smiling and Luna winking and smiling with her tongue between her teeth, her brothers cum clinging to her face. With the text "Midnight facials with my favorite roadie" with emojis after.
It was a stupid thing to do. She'd taken it half as a joke but kinda wanted to show Sam. The whole thing had been her idea. Sorta.
One night the couple had been drinking. Sam had nicked a few beers apiece from her folks, an uncle, and some cousins and had managed to put together a full 24 pack (plus 2) of mismatched brands. During this they got honest and started telling secrets and Luna confided that she had a crush on Lincoln when she was 12. She even almost got him to practice kissing her once but her mom walked in and she got scared off it forever.
Sam thought that was the hottest shit ever. Even after they'd sobered up she'd still tease her about it in private. She got weird with it sometimes when they were fooling around though. ("Spell Alabama on my clit you brother fucking dyke!" was one jarring line she gave while Luna was pinned between her thighs.)
The next message from Lori broke her train of thought on how she led up to this potential mess.
'cute pic. I guess little boys don't count huh? lol'
Relief grew larger and almost pushed out the ice of fear. Then the next message almost sent her reeling.
'What do you think of mine?'
The file attached was Lori with her head over Lincoln's thigh, her tongue and bottom lip caressing the head of his dick as it was spurting cum. Luna thought it might be a freeze frame from a video but it was just as likely Lori snapped the pic at the right second. She always bragged about mastering the selfie as an art.
What really drew Luna's eye was Lincoln's face. Eyes crossed, nearly drooling, and beet red. She'd never gotten a reaction like that out of him.
'12th birthday present lol'
Luna almost felt mocked by the tongue emoji that followed. It's like Lori was trying to one-up her. She didn't want to call her out on that though, she had as much on Luna as Luna had on her and mutually assured destruction just wasn't the way.
'whoah nice'
Luna texted back.
'The three of us should get together next time I'm home!'
'Really blow his mind'
"And show me up in person," Luna thought bitterly.
'Sounds rad'
'looking forward to it'
Luna tacked on the horns emoji and Lori dropped a heart in return. After waiting a minute to confirm the conversation was paused Luna tossed her phone aside, groaning as she pushed her palms in her eyes, and sunk down into her bean bag chair.
Luan was at an after school rehearsal so Luna could mope in her room in peace. She thought what she had with Lincoln was special. That she was his first. Well not 'first' first. He hadn't speared the muffin yet. She wanted to build up to that.
"Lori probably already had it twice in every hole by now," Luna grumbled to herself. "Slut." She immediately felt bad. She loved her big sis but, she was always first at everything. First born, first to drive, first to get a boyfriend. Being the oldest though, of course some of that had to naturally occur. But damn did she let it go to her head sometimes.
Luna hunched down till her legs were splayed straight out and crossed her arms. She started to retrace her thoughts from earlier.
After awhile of Sam teasing her about her near brush with incest as a kid, Luna started seeing her brother with a more 'objective' eye. He was cute for a boy. Kind, helpful, funny. A bit of a pushover sometimes but he had time to work on that. It wasn't hard to assess his physique since he still lounged around the house in his y-fronts to this day.
She started teasing him little by little. Ruffling his hair when he was helpful or pinching his cheek when he complimented her music. She started pointing out how handsome he was. "You got a girlfriend yet stud?" she teased as he lounged in the living room chair, socks and undies on full display. "pffft" Lincoln scoffed at her. "No."
"Well better hurry up dude," she laughed "don't want your good looks to go to waste." Lincoln rolled his eyes and flipped over on his back, trying to look engrossed in his comic but, Luna saw the little blush on his face creep in.
One Saturday she was feeling extra bold with half their siblings out of the house. She saw him bent over at the waist looking through a box in his room, ass up and looking pert in his blue jeans. Luna snuck up to within three feet of his door then took two big steps and swatted him right on the left cheek. She saw him glance up as she stepped to him and she smiled as he yelped and shot straight up.
He wheeled around looking annoyed as he raised his voice, "Lynn! You know I hate tha-" His voice died and face went from irritation to confusion as he was faced with Luna standing before him smiling with a fist on one hip and her other hand still flat from her surprise attack.
"Looking tight bro," she half laughed, "Been doing a lot of squats?" She grinned as he stammered for an answer then, on impulse, she turned her back to him, bent forward and flipped up the back of her skirt. She glanced at him as his eyes widened at the sight of her polka dot panties pulled tight to her buttcheeks. "Got any tips or critiques for me? Feeling a little inadequate next you, bubble butt!"
After a few seconds of Lincoln just stammering she laughed and dropped her skirt back down. "Well, let me know if you come up with anything!" she said brightly as she half turned back to him. She glanced down and her eyebrows raised at the tent pitched in her little bro's pants. "Let me know if you need 'help' with anything too." she added as she turned and did her best to strut as she walked to her room.
She shut the door behind her and did a quick scan for Luan. Seeing she was alone she hugged herself and giggled. "Oh man," she laughed. "Can't believe I did that. And he liked it!" Luna felt giddy as she climbed into her bunk and fished out her phone to message Sam. She adjusted her story slightly, saying she saw him pretending to be looking for something on the floor as he tried to sneak a peak up her skirt so she gave him an eyeful as a treat.
'OMG babe that's so hot '
'he's so into it'
'you should make him a man lol j/k'
Luna felt all giddy again at Sam's rapid responses but that last one made her falter a second. It was one thing to be a tease but actually do 'stuff' with him?
---
Back in the present Luna laughed sardonically about her hesitation at the time. It was short lived, come the next weekend.
---
Friday was a 'Faculty Council' day and Monday was a state holiday. The ten Loud kids were jazzed up for a long weekend but their parents had too many obligations to make a day trip or any other big plans. So it was just a standard weekend doubled over. Saturday had turned into an impromptu sleepover style movie night. All the kids and their parents piled into the living room in their pajamas and all the junk food they could get around six PM.
By two AM almost everyone was out. Lynn Sr., Rita, and Lily had been first of course, heading to their proper bedrooms by eight thirty. Lisa and Leni started dozing off shortly after. By eleven Luan, Lucy, and the twins had ended up snuggled into a pile. Lynn was still going strong, alone on the floor in front of the TV, kicking her legs as she watched intently, since it was her movie choice again. Luna and Lincoln had crowded together in the center of the couch, sharing a single blanket and leaning against each other.
Lincoln seemed on the verge of dozing off as Lynn's movie started, typically a sports movie of some kind. (Luna couldn't remember the title five minutes in let alone now.) About thirty minutes in, with characters and conflict established, the hero was having a tender moment with his wife about his doubts. Luna shifted slightly, causing Lincoln to sit up off her shoulder and focus on the screen for a moment. That's when the scene turned hot and heavy. Breasts exposed for the audience's pleasure and the scene shifting to the wife riding the hero cowgirl style.
Luna blinked in surprise. She was glad most of her younger siblings and their parents were asleep. It's probably why Lynn decided on this racier flick. Luna glanced at Lincoln and found he looked pretty focused on what was going on. With him shifting the blanket a moment ago she could see his lap and the growing hard-on in his pajamas.
Luna's eyebrows raised and Sam's text last week popped into her mind. She nudged Lincoln, causing him to jump a little before he turned to look at her. She gave him a cocky half-grin and as she tilted her head towards his lap. He look mortified and tried to cover it up. Luna put a finger to her lips and shh'd quietly. They both glanced towards Lynn, seeing she was still watching the film intently, both arms tucked under the pillow beneath her chin.
Satisfied she was distracted and everyone else was dead asleep, Luna moved her hand subtly under the blanket across to Lincoln's lap. Trying appear that she was watching the movie, she went entirely by sense of touch. Luna felt her hand touch Lincoln's own, where had them covering his lap. She rubbed the back of one hand gently then danced her fingers up to his waist band. She still wasn't looking at him but could feel some hesitation in his movement. Still, he moved his hands out of her way.
Luna slid her fingers into his pajama bottoms up to her second knuckle, but with the combination of Lincoln's sitting position and the fact his pajamas had a button instead of a draw string, it was a tight fit. She gently wriggled her fingers to try and work past it without causing too much discomfort. After a moment she felt Lincoln shift, then she blushed slightly and bit her lip as he undid the button, giving her fingers free movement.
She slid her hand further down, her index finger slipping under the waistband of his underwear, the rest rising along the stretched fabric to glance against the bottom of the covered head. Still nibbling her lower lip, Luna pulled back and slipped her hand into his undies proper. The warm soft skin pleasant against her palm as she placed her had around it, her middle and ring finger wrapping around the shaft as she felt at the foreskin covering the base of the head with her thumb and index.
Luna's heart was thundering in her chest, her body temp rising. "Touching it without seeing it. This is so hot, dude." she thought to herself. She rubbed the based of the head a couple more seconds, then wrapped her hand around it fully, feeling the rim of the glans between her middle and index finger she gently pulled her hand down to try and 'unsheath' it. Lincoln yelped slightly, causing Luna to jump as her heart seized. Lincoln quickly stifled the sound into a fake yawn. Lynn barely stirred, only reaching back briefly to scratch her butt.
Luna let the breath she was holding out and decided she should take it a little slower. She lowered her hand, extending her ring out with her pinkie to give her more room. In that moment she became aware that she was using her left hand, rather than the dominant right, but she could play the guitar, and most other instruments, both ways so she figured she could quickly figure out the left handed method for the skin flute too. She stroked up, her grip tight enough to pull the skin along the shaft, but, she assumed, not enough to hurt. She felt Lincoln shudder a little and a twitch along the under side of his dick. She guessed she was doing it right so far.
They sat quietly as they could, pretending to focus on the movie. It seemed to be reaching its climax and Lincoln wasn't far behind. Luna quickened her tempo, feeling her index finger start to get slick at the middle as precum started to seep out around it. Finally Lincoln groaned slightly as he bit his lip and Luna's breath hitched as she felt hot semen spill out in bursts. Its course hindered by Lincoln's underwear, most of it pooled and spilled down the back of her hand as she gave a couple more emptying tugs. She slowly pulled her hand out, wiping the mess along the inside of Lincoln's briefs. He didn't seem to mind. He caught his breath and blinked a few times. He glanced over at Luna and she gave him a lopsided smile that he returned as she pulled her hand back to her own lap. He scooted closer to her and rested gently against her shoulder as he drifted off.
Luna smiled down at him, eyeing Lynn one last time as the movie was winding down. She guessed she had about 3 minutes before the credits rolled. Moving gently to avoid disturbing Lincoln she brought her left hand up near her chin. It looked clean but she could still feel the sticky residue her brother left. She quickly gave the spot a lick before tucking the hand back under the blanket.
"Salty..." she muttered quietly.