Rockin' Lincoln's Log, a loud house fanfic

Luna Loud lived life in the fast lane. She worked a part time job at Burpin' Burger, went to school full time, recorded music and uploaded it to YouTube and SoundCloud, played the occasional free gig on the weekend with her band, hung out with her girlfriend Sam whenever possible, and always had time to help out her younger siblings. Especially Lincoln. She and her little bro had always been really close and she had a special affinity for him that didn't extend to the others. It wasn't that she loved him more than the others; their bond was just a little stronger. He was into some of the same stuff she was and his personality was closer to hers than almost anyone else's. Lori was too uptight, Leni was vapid, Luan's constant joking and playing around got on her nerves, etc. That wasn't to say that Lincoln was perfect or that he never made her wanna strangle him, but they were a lot alike and when she looked at him, she saw a younger version of herself.

She was four when Lincoln was born, just old enough that having a baby around was new and special and exciting, she played with him a lot and took care of him the best she could (which wasn't the best since she was four). They spent so much time together that she often wondered if she didn't rub off on him. She wasn't trying to build the perfect spitting image of her the way she and the others tried with Lily that one time, but she supposed in a way she kind of did. He wasn't identical but he was close enough that she felt a connection that she didn't feel with the others.

A strong second would be Luan. They were close in age and had shared a bedroom since before Luna could remember. Luna's bond with her slightly younger sister was just as strong as her bond with Lincoln, but not quite the same. She couldn't put her finger on exactly what it was about Lincoln. Like seriously, she should feel exactly the same way about Luan, but she didn't. With Lincoln, there was undefined something that she tried to name and understand. He was special to her and that was that. She really couldn't say anything more than that, and did she really have to? No one was holding a gun to her head and forcing her to explain herself. She was a complex person and though she wasn't very old, she was coming to the conclusion that the more complex someone is, the more contradictory they are.

At the beginning of the summer, Luna picked up a bunch of extra shifts at work and couldn't hang out with Sam and her other friends as much. This was a conscious choice on Luna's part. She and Sam weren't doing too good and Luna didn't want to confront it, so she hid away and avoided the problem. She was mature enough to know that that wasn't the way to handle an issue, but she was immature enough that she couldn't bring herself to actually handle it. In fact, she didn't even know what it was. She was young and still learning her own thoughts and emotions. She didn't feel the same way about Sam as she did when she first put that note in her locker, and she got the sense that it was the same for Sam. They were drifting apart and Luna wasn't sure what she wanted to do about it. Did she want to save the relationship or did she want to cut Sam loose? Having a girl was kind of draining, to be honest. Sometimes Luna would get busy and forget to text Sam, then feel bad about it afterward. She always had to take Sam's thoughts, wants, and feelings into account before she did anything, and though it made her sound selfish, that was a real drag.

There was also the problem of Sam being a girl.

Luna was bisexual. She liked both boys and girls. She dated a guy in eighth grade and then Sam during most of ninth. One of the things she learned from those two experiences, and had only realized this past spring, was that she wasn't entirely happy with either sex. Guys lacked the things she liked about girls and girls lacked the things she liked about guys. Having one was great, but she always missed the other. It was like having two favorite flavors of ice cream. Sure, that mint chocolate chip was the bomb, but...man...maybe you should have gotten moose tracks instead.

To be truly fulfilled and satisfied, she needed both. A chocolate-vanilla swirl, if you will. She genuinely liked Sam but being with her exclusively kind of made Luna...resent her? Maybe not resent her, but resent the situation. She had considered asking Sam if they could have an open relationship, but she was afraid that would hurt Sam's feelings. That seemed like an unfair thing to ask. Hey, you're not cutting it, so can I fuck other people? That's not how she meant it, but Sam might take it that way and Luna wouldn't blame her if she did. You can frame it anyway you like, but having your partner basically tell you that you're not enough for them has got to hurt. If Sam did it, she would probably feel a little twinge of pain, but once Sam explained, she would probably get over herself. She didn't know if Sam would react the same way, and that gave her pause. Yeah, she wanted a guy but she also wanted Sam and wasn't keen on losing her. She wanted to eat from the buffet of life, not to have one dish over another. Sausage was great and so was cherry pie, but they were a package deal, and having just one kind of spoiled the meal.

Luna knew that stewing wasn't going to help anything, knew that she needed to clear the air and talk to Sam, but she dreaded doing so because it might go south. So instead of communicating, she closed herself off and focused on work. She showed up every morning at open and left every night at close or just before it. Her days were long and taxing but she was making good money for a fifteen year old kid, so she was content.

Working so much made her weekends special, especially during the summer, when every day kind of blurred into another and a Friday felt just like a Monday. On Saturdays, she had the whole day to herself and on Sundays, she and Sam hung out at the park. When Sam's parents weren't at home, they went back to Sam's place and had incredible, mind-blowing lesbian sex. Sometimes Luna wished she was being penetrated and stuffed full of cock, or swallowing a pair of splooge-filled balls, but she did her best not to think of that.

Which was kind of hard now that Luan was entering puberty.

Sooner or later, every girl eventually feels that insistant fire down below, and now was Luan's turn. She had a neverending stream of questions about boys, especially about their penises. She wanted to know what they looked like, what they felt like, what they tasted like, what they did when the boy came, what it was like to get fucked by one. Luna told her that the closest she had ever come to having full on sex with a guy was with Chunk, but that wasn't true. She made that up just to mess with her. She did do something kind of similar in real life, though. Last year she was at a sleepover and some boys snuck in. To make a long story short, she hit it off with one of them and they made out. He put his hand down her panties and fingered her and she stroked his dick. They finally wound up grinding on each other and cumming all over themselves. She didn't even get to see him blow, but she did see how wet and sticky the front of his boxers were. She couldn't lie, that was so hot that she sometimes thought about it still.

Luna didn't know what it was like for other bi people - if there was a standard to begin with - but for her, attraction to one sex came and went. There were times when she was more into guys, and then times when she was more girl crazy. She never lost her attraction to the sex she was less focused on, but she was more likely to ignore them in favor of the sex she was focused on. Lately, she was more into guys, so that, along with everything else, came between her and Sam.

The more she thought about it, the more she believed that she would eventually go back to being more gay than straight, so all she had to do was wait it out.

She resolved to do that and everything was fine for a while.

Then she caught Lincoln and Luan having sex.

It was late one weeknight and Luna woke up to pee. She knew vaguely that Luan wasn't in her bed but she didn't think too much about it. Luan was fourteen, she could do whatever she wanted as long as he left her alone and let her sleep. She shuffled to the john, copped a squat, and propped her face in her hands. She nodded off for a few minutes and snapped awake when her elbow slipped. She yawned, stretched, and grabbed a wad of toilet paper. At the sink, she turned the faucet on, cupped her hands beneath the stream, and took a drink. She smacked her lips and dragged herself back to her room, shoulders slumped and eyes fighting to stay closed. She got to her door and stopped when she heard a moan come from the end of the hall.

Lincoln's room.

She waved it off but it came again.

It sounded like he was hurt.

Sighing, she went to his door, opened it, and snapped the light on. "You oka -?"

The word died on her lips.

Lincoln was on top of Luan, both of them as naked as the day they were born. Luan's legs stuck up in the air and Lincoln's pale butt flexed and clenched as he pumped into her. The moment they realized they weren't alone, they jumped up and tried to cover themselves. "What the fuck?" Luna cried.

"Luna," Luan started, "it's not -"

"It's exactly what it looks like," Luna said, cutting Luan off.

She was too tired to deal with this right now, so she made them separate and then went to bed. Though tired, she laid awake for a long time trying to process what she had seen. God, they were...doing it. How sick and messed up was that?

The next day, after she got home from work, Luna took Luan aside and asked her about hers and Lincoln's relationship. It started the week before, she said, when she seduced Lincoln at the pool. She told Luna every nasty little detail of their many trysts, and as she listened, Luna got kind of turned on. The way Luan made it sound, having sex with Lincoln was like eating manna from Heaven while sitting on the edge of Cloud 9. As she told her about it, Luan stretched out on her bed and unconsciously ran her hands up and down her body. Her eyes rolled back into her head and her breathing increased. She rubbed her legs together and bit her bottom lip. "It feels sooo good, Luna," she said huskily. "You have to feel it for yourself."

Ew, gross, no way.

At least that's what Luna thought at first. Over the course of a few days, though, she started to look at her brother differently...and to imagine being with him. If you overlooked the generic siblings part, Lincoln was the perfect guy. She could have him on the side and Sam for her main. It would work awesomely.

One night, Luna was lying awake thinking of him and running her hands over her breasts and stomach when she heard a floorboard creak in the hall. She sat up, cocked her head, and listened before getting up and going out. The hall was dark but a faint blue light colored the living room wall. She crept silently down the stairs on her tip toes, hand trailing along the bannister. At the bottom, she paused. Lincoln was sitting on the couch and playing a video game, his head and shoulders silhouetted against the screen. An idea struck Luna then, and her heart skipped a beat.

No, she shouldn't, she couldn't.

Reaching under her long night shirt, she jammed her thumbs into the waistband of her panties and pulled them down. They pooled around her ankles and she stepped out of them. Heart pounding, she went into the living room and walked around the couch, consciously using her sexiest strut. "Hey, bro," she said.

He looked at her and tensed. "Hey."

Things had been awkward since she found him balls deep in Luan and they hadn't interacted much.

She decided to not beat around the bush. '

She got between him and the coffee table and sat on his lap. He tensed and she leaned back until they were virtually cheek to cheek. "What you and Luan did was really wrong," she said.

"I know," Lincoln replied guardedly.

"It was also really hot."

She kissed his cheek and ran her fingers through his hair, nails grazing his scalp. Lincoln's breathing quickened and she felt his dick getting hard beneath his lounge pants. She kissed the corner of his mouth and he turned his head to face her, the tips of their noses brushing. "Can we do it too?" she asked.

Instead of letting him reply, she kissed him. Lincoln kissed her back and she slowly wiggled her butt on his stiffening erection. She lifted up a little, pulled his pants down, and sat on him, squishing his dick between her folds. She took the controller from Lincoln's hands, kissed his nose, and turned around, facing the TV. She swiveled her hips, and when she felt Lincoln's dick pressing against her opening, she jerked down, sheathing him to the hilt. She was not prepared for how big he was, and when he was in, her eyes crossed and her breath caught in her throat. She had never had anything but Sam's fingers in her and Lincoln's girth alone was enough to send shockwaves through her body. Her wet walls molded to his shaft like sticky satin and her muscles squeezed violently around him, trying to push him out.

Lincoln circled one arm around her waist and cupped her breast with his opposite hand. Luna rocked and rolled her hips, and Lincoln thrusted up into her womb. She bit her lower lip and moved in harmony with his pumps, his dick swirling around inside of her and stroking her G-Spot. Her body clenched and her heart jumped into her throat. She felt hot from head to toe and she felt like she was going to split in two. It was a strange sensation, pleasure mixed with pain, the way he pinched her nipple made her quiver and shake. She tossed the controller aside, splayed her hands on either side of his legs, and lifted then lowered herself. Her body slid wetly against his and the touch of his dick to her G-Spot caused her breath to catch. Lincoln squeezed and tugged at her breast and went faster, harder. He was like a little savage and his moans and grunts were beautiful music to Luna's ears.

Getting off of his lap, she got to her hands and knees on the couch and stuck her butt into the air. Lincoln knelt behind her, grabbed her hips, and sank himself into her. Her breasts jiggled and her body rocked forward every time he slammed into her womb. She dug her nails into the couch cushion and let her little brother fuck her.

Now that her body was adjusted to it, it felt so indescribably beautiful that she would never be able to put it into words. She came three times without realizing it, and her body went weak; she buried her face in the cushion and bit down on it to keep from screaming his name. His hands ran reverently over her butt and his balls tickled her clit, bringing her to the edge again.

"Get on your back," Lincoln panted.

Luna obeyed, spreading her legs wide for him. He mounted her and she stroked her fingers through his hair as he rutted her. He went faster this time and she could sense him getting close to the edge. She wrapped her legs around him and pressed her heels to his butt, her nails raking his chest. His panting got faster, more ragged, and she felt him getting bigger and hotter inside of her.

Finally, his shaft swelled to twice its normal size and grew so hot that Luna imagined it glowing orange with heat. It spread her pelvis almost to the point of snapping and she sucked a sharp gasp of air. Lincoln pumped into her one last time, then his dick spurted hot, creamy seed into her womb. Luna's brain scrambled like an old TV on the porn channel and her body burst into flames. She drew Lincoln deeper into her and bucked wildly against him, taking every drop to the back of her stomach, where it pooled like lava and spread through her from head to toe.

Lincoln collapsed onto her, and she wrapped her arms and legs around him, holding him close and kissing the side of his face. "Luan was right," she said. "That was rockin."

"I love that thing you did with your hips."

Luna smiled proudly. "Wait until you find out what I can do with my mouth."

"I don't know if I can," he said.

Shifting out from underneath him, she took him by the hand and led him upstairs. "Come on."

In his room, Luna knelt in the middle of the floor, took Lincoln's dick into her mouth, and bobbed her head up and down. Her hot saliva coated his shaft and his salty precum oozed down the back of her throat, spreading its warmth through her body. She rubbed herself as she sucked, licked, and lapped his cock, and in less than two minutes, he was pulling her hair and filling her mouth with his load.

To return the favor, he bent her over the bed and ate her pussy from behind. She didn't last much longer than he did, and when they were done, they lay side by side in bed, both winded and sweating.