Lincoln Loud sat in his room on a muggy Sunday afternoon, dressed only in his briefs and a pair of socks. A hardback book - The Ace Savvy Compendium - sat unread in his lap. He was half way through and heading for home when a thought seized him by the dick and shoved its tongue down his throat, a thought that got hotter and bigger the more he entertained it, like a flame growing in intensity. His cock, which he called The Log even though that reminded him of those old Captain's Log jokes, strained against its cotton prison, burning orange with heat. He crossed and uncrossed his legs, shifted positions, and tried to think of other things, but his mind kept going back to it like the biblical dog returning to its own vomit.

Over the past couple of weeks. Lincoln's sex drive had been off the rails. He beat the breaks off of Lisa, fucked Lola's throat, and now, after a three day break, the fires of his passion were upon him once more. He had been looking at Lana since yesterday, dreaming of touching her little body and sucking her mosquito bump tits. Lana was a dirty, rough and tumble tomboy. He bet she'd like a finger in her butt. He pictured himself finger fucking her ass while she pinched her nipples, threw herself back into him, and moaned his name, and his dick ached for release.

At first, he thought he'd do that, but then, as he sat here minding his own business, a new thought came to him. It started when he read the phrase animal-like woman in relation to one of Ace's female foes.

Hey, he thought, just like Lana.

Lana was a little animal. His baby sister bitch in heat.

And that's when it clicked.

He knew exactly what he was going to do.

Setting the book aside, Lincoln got up and stretched: His dick pushed out the front of his briefs like a mighty oak, and the fabric around the tip was damp with the dew of his desire. Throwing on a pair of jeans to hide it as much as possible, he went into the hall.

At Lisa's room, he leaned against the doorframe and crossed his arms. Lisa looked up from her computer and donned a big, dreamy smile. "Hi, Lincoln," she said.

"Hey," he said. "I need some help."

"Anything," Lisa said.

Next, they went downstairs where Lori, Leni, Luna, Luan, Lynn, and Lucy watched TV. "I have something I wanna show you guys," he told them.

"This better be good," Lori said.

They followed him upstairs to Lola and Lana's room. Lola was sitting at her vanity putting on makeup and Lana reclined on her bed with her tablet: The sounds of engines revving and many voices cheering told Lincoln that she was watching a race.

"Oh, hi, Lincy," Lola said and batted her eyelashes. "What'cha doin'?"

"You'll see," he said.

He walked over to Lana's bed and sat down. The rest of the sisters gathered around expectantly. "Hey, Linc,' she said without looking up from her tablet.

"You wanna play a game?" he asked.

"Not really," she said. "I'm watching Bobbie Fletcher videos."

Lincoln took the tablet away. "But you'll love it. It's a dirty game. A filthy game."

Her forehead crinkled in thought. "Go on," she said.

Laying his hand on her leg, he said, "It's called the sex game."

Lori gaped, Leni tapped her chin in confusion, and Luan and Luna looked at each other. "What did he say?" Lynn asked.

A look of understanding flashed across Lana's face and suddenly she was nervous. "Uhh, I don't know. I don't -"

Not letting her continue, Lincoln mounted her, knees caging her hips. She stared up at him with wide-eyed trepidation. Lincoln undid the straps of her overalls and slid his hands under her shirt, his palms scraping her soft flesh. He found her tiny nipples and lightly ran his fingertips over them until they were stiff. Lana gaped up at him, mouth open and eyes wide; he couldn't tell if she was appalled at his actions, or wanted him to continue.

"LINCOLN!" Lori shouted. "WHAT ARE YOU DOING?"

Leni, Luna, Luan, and Lynn were all blushing. Lisa, Lucy, and Lola watched intently.

Bending over, he kissed the side of Lana's neck and flicked her earlobe with his tongue. Lana shivered and started to breathe heavily.

Lori opened her mouth to protest but fell silent. She was blushing now too.

Lifting up, Lincoln pulled Lana's overalls down, and Lola helpfully yanked them off, pulling them over Lana's feet. Now Lana was clad in only her T-shirt and a pair of blue panties. Lincoln ran his hands down her sides, hooked his fingers into her underwear, and tugged them down, freeing her pristine, unspoiled pussy. He unzipped his pants and took his dick out; Lana's breath caught when she saw it. "I'm gonna breed you like an animal, Lana," he said huskily. "Just pretend we're animals."

He forced her thighs apart with his knees and slid his hips forward. Her lips curled around the tip of his dick and her body clenched when he penetrated her hole. She threw her head back and bucked against him, pulling his dick all the way to her limit. They gasped in one voice and Lana whimpered. He flipped her over, propped her on her knees, and started to slam into her from behind. She yelped and growled with every thrust and her body clenched down on him. Lincoln stared into his sisters' eyes. "This is gonna be you," Lincoln told his sisters. "I'm gonna fuck a baby into all of you."

Luan licked her lips, Luna nodded (yes please, bro), Leni leered, Lori blushed, and Lynn fidgeted, clearly aroused. Lola bit her bottom lip and Lisa balled her hands into fistst. "Yes," she told the ceiling.

"I'm gonna get all of you pregnant." He bent over Lana and pressed his lips to her ear, thrusting hard and fast. "You're gonna have my baby, Lana. You're gonna fucking have all my babies." He grabbed the sheet in his hands and slammed himself against her as hard as he could. Lana threw her head back and howled like a dog.

Finally, he flipped her back onto her back, squatted over her, and hit her with his signature move: The mating press. Lana's eyes rolled and her tongue lolled out of her mouth. His dick got bigger, then his nut was gushing out of him and into Lana, filling her stomach, Lola rubbed herself through her dress and Lisa was squeezing her thighs open and closed, open and closed.

Lincoln pulled out, and a rush of his and Lana's juices poured onto the sheets. Lincoln got up, pulled his pants on, and walked out of the room, brushing past his flustered sisters.

He meant what he said.

He was going to get all of them pregnant.

Even Lily one day.

For now, though, he had a book to finish.