Once upon a time, Lincoln Loud greeted his birthday with giddy excitement. Now, he barely noticed it.

Twenty-seven and working at an accounting firm in town while trying to break into the comic industry as an artist on the side, Lincoln lived in an apartment with his wife, Ronnie Anne. Money was tight and sometimes, Lincoln didn't know if they would be able to pay the bills that month. Things usually worked out. On his days off, he hung out with Ronnie Anne, played video games, or dropped by Mom and Dad's to see if they needed help with anything. They were both still relatively young - in their mid-fifties - but both were working class people with a host of working class people problems, like bad knees and ankles from constantly being on their feet. One of Lincoln's favorite things to do with his off time was hang out with his sister Luna. Luna lived across town and worked at the pet store. She sold her music online and made a decent amount of money from it, not enough to live on, but enough to nicely supplement her income.

Out of all of his sisters, Luna had always been his favorite. She was normally chill, easygoing, and full of sage stoner wisdom. Not that she was a stoner, of course, but she had that down to earth vibe. He and Luna were really close and Lincoln loved hanging out with her. A few months back, they were sitting in her living room while her girlfriend Sam was at work and reminiscing about old times. They laughed together over something, and their eyes met. The strangest urge to kiss her overcame Lincoln and ever since, he'd felt strange around her. He couldn't get her out of his mind, and the desire to taste her lips, like forbidden wine, plagued him constantly.

A few days before his 28th birthday, Ronnie Anne asked him what he wanted. An idea instantly came to mind and Lincoln blushed deeply. "What?" she pressed.

"It's nothing," he said.

"Yes it is, lame-o. I know you. What are you thinking?"

Lincoln opened his mouth but snapped it closed again. He was nervous about telling her. What would she think of him? Would she be hurt? Would she be disgusted?

All of the thoughts and feelings he had been battling over the past few months swelled within him like a balloon filling with water and he spat it out. "I want to fuck Luna."

Silence crashed down around them. "What?" she asked.

Lincoln swallowed hard. "I want you to be there too. Like...a three way."

"With your sister?"

Blushing so hard he felt like he was going to burst into flames, Lincoln nodded.

Ronnie Anne looked at him for a moment, then laughed. "That's weird...but kind of hot. You got a thing for your sister, huh, lame-o?"

Shamefaced, Lincoln nodded. "I know it's kind of...gross...but Luna and I have always been, you know, close, and I just…." he trailed off, not knowing how to continue. There was no way to justify his feelings; anything he said would fail to articulate his feelings and to convey his emotions. It would sound cheap and fumbling. He understood how bizarre his feelings for his sister were and knew that he shouldn't have them, but he couldn't control the way he felt. Luna was very special to him and having sex with her, he thought, would complete and strengthen the bond between them.

That line of reasoning made perfect sense to him but he realized that trying to say it out loud would sound insane. He did so anyway, because he trusted Ronnie Anne, and she nodded solemnly. "When I was a kid, I kind of wanted to marry Bobby. Then again, I was, like, six and didn't understand how it goes."

"Gee, thanks," Lincoln said, "I feel better."

She laughed. "I'm trying to make you feel better, dork."

She agreed to his request, but only on the condition that he had to ask Luna for it himself. That thought terrified him, but he realized after getting it off his chest that he wanted it more than he thought he did.

He decided to go and see Luna now.

Getting up, wracked with nerves, he left the house.

Luna and Sam were stretched out in bed, both naked and sweaty, and holding each other closely. Their legs were thrown over the other's hips and their feverish pussies rubbed wetly together. Luna brushed her hand up Sam's sleak flank and Sam attacked Luna's exposed throat with a flurry of soft, urgent kisses. Their erect nipples skimmed lightly together and their passions rose in a crashing crescendo. Sam rolled Luna onto her back, mounted her, and pinned her hands above her head. Luna bit her lip and stared up at her, heart pounding. Sam usually took the dominant role in sex and Luna was glad to be her sub.

"Do you want it?" Sam asked and rocked her hips, sliding up her quivering pussy lips against Luna's.

"Yes," Luna panted and arched her back in search of release, "God, yes."

"Beg me."

"Please, baby, let me cum."

Sam tilted her head to one side. Through her sweat-matted bangs, Sam's eyes twinkled with mischief. She weaved her fingers through Luna's and bucked harder, slamming their cores together. Luna was moments away from blowing her top when a knock came at the door. Sam rolled off of her and stretched out on the bed, panting. "Will you get that?"

Luna sighed and sat up. "I'm gonna kill whoever it is."

She pulled on a silky robe, went into the living room, and opened the door.

Lincoln stood in the hall, looking embarrassed. "Oh, hey, bro," Luna said. She stepped aside so he could enter, then closed the door and sat on the couch while he perched on the armchair, hands clasped between his knees. She did not make good on her promise to kill him. If it had been anyone else, she would have snapped their head off and then told them to leave, but he wasn't just anyone, he was her bro.

"You look uncomfortable," Luna said. "You got hemorrhoids?"

That elicited a weak chuckle from Lincoln. "No, I just -"

Sam came into the room, wearing her own robe, and sat on the arm of the couch. "Hey, Linc."

The color drained from Lincoln's face and he looked nervous. "I, uh…"

"What's wrong, bro?" Luna asked and leaned forward in concern.

For a second, Lincoln sputtered and blushed, and Luna's heart pounded with suspense. Something was wrong, she just knew it; she could read Lincoln like an open book and the text in front of her face was telling her something wasn't right.

Taking a deep breath, Lincoln told her everything, and when he was done, she and Sam gaped in shock. Luna's head spun and she felt like she was going to fall off of the couch. He wanted...a threeway...with her?

It would be a lie to say that she had always wanted to fuck her brother because she hadn't, but as her mind processed his strange request, she felt a certain stirring of excitement at the prospect. She liked kinky, forbidden sex, and what's kinkier and more forbidden than incest?

But this was a serious matter. Her relationship with him might never be the same afterward. It might -

"Make it a four way and you have a deal," Sam piped up.

Luna blushed. "Sam…"

"If you don't want to," Lincoln said, "you don't have to, but...I really want this to happen."

Luna looked into his eyes and knew even before she spoke what her answer was going to be.

"Okay," she said.

On Lincoln's birthday, Luna, Sam, Ronnie Anne, and Lincoln gathered in the living room to celebrate. Instead of cake, they had drinks...lots of drinks. They were all willing but none were quite ready, so they needed a shot of liquid courage to get things going. They told stories and laughed as the alcohol took effect. Luna and Lincoln got to talking about their childhood and laughing over the antics of their sisters. Eventually, Lincoln moved over to the couch and sat next to her. He laid his hand on her leg and began to stroke it as they talked. Her brown eyes were enchanting, her lips moist and sparkling with dew. She was soft and warm and the way her breathing sped up as he touched her turned him on to no end.

Leaning in, he kissed her neck and she let out a soft sigh. He wormed his hand between her legs and caressed her lips through her panties. The salty taste of her skin urged him on and he trailed kisses up and down the curve of her throat.

While they did that, Sam plopped down in Ronnie Anne's lap and hooked her legs over the arm of the chair, stretching out like a babe in its mother's arms. "You ever been with a woman?" Sam asked.

"No," Ronnie Anne said.

Sam took Ronnie Anne's face in her hands and kissed her deeply. "Well, you're about to be."

Luna slipped her hand under Lincoln's shirt and traced his muscles. Her core bubbled hotly and her lungs wheezed for air. She pushed Lincoln away, stood up, and took his hand. She led him into the bedroom, giving him a sexy look over her shoulder, and then laid on the bed. Lincoln stretched out beside her and they gazed into each other's eyes. Luna ran her fingers through Lincoln's hair and Lincoln brushed her cheek with the back of his hand. "You're beautiful," Lincoln said.

Luna blushed.

"Really," he said, "I've loved you for a long time."

She stroked his cheek then kissed him. He pulled her panties down to her knees and cupped her pussy in his hand, and their tongues grappled for dominance. He stroked his middle finger up her center, and when it skimmed her clit, she let out a bodywide jolt. She unzipped his pants and pulled his dick out. It was hot and thick in her hand, and Lincoln's breathing turned ragged. She scooted down a little, brought it to her lips, and licked the tip before taking it to the back of her throat. She bobbed her head up and down, and Lincoln moaned.

Sucking her brother excited Luna, and instead of being submissive as she was with Sam, she took charge. She mounted him, pinned his wrists above his head, and slowly sank herself onto him, shuddering at the feeling of him spreading her walls. Looking down at his red, upturned face, eyes hazy, she realized that she had always loved him too.

She lifted up and then slammed herself down; they gasped in unison. Lincoln had always been her little bro and it always fell to her to protect him. Right now, it fell to her to give him the best orgasm of his life and she went about it with frenetic energy. She moved her hips from side to side, alternated between slow and fast, and kissed him as she bounced on his dick. Before long, she could feel him growing hotter and bigger. At the last second, she unsheathed him and he came, partly on her butt and mostly on himself.

Sam and Ronnie Anne were watching, Luna realized, and looking turned on. "My turn," Sam said.

Over the next three hours, they had sex with one another again and again. Lincoln went down on Sam, Sam sat on Ronnie Anne's face, Ronnie Anne sucked Luna's nipples, Lincoln fucked Ronnie Anne, Luna fucked Ronnie Anne, Lincoln fucked Sam, and Sam ate Ronnie Anne. When it was all over, they cleaned themselves up and parted ways, feeling closer than ever.

When Luna and Sam were gone, Lincoln and Ronnie Anne cuddled in bed. It was true that Lincoln had always loved Luna, but he loved Ronnie Anne too, and he was happy to have her as his wife.

He said so and Ronnie Anne smiled. "I love you too, lame-o," she said and kissed him.

Maybe, Lincoln thought...just maybe…

It was time to start a family.

He'd talk to Ronnie Anne about it later. For now, he wanted another one of her blowjobs.

Those were incredible.

THE END