It was early in the morning before the sun even rose, a shadowy figure was looming through the loud house, carefully not making a sound as a pale hand grabbed a doorknob, carefully opening it, once inside, the figure stared at the two in bed, a brunette snoring, with her chest exposed the other a white hair teen, sleeping peacefully. The pale hand soon reached for the brunette and started shaking her awake.

"Ugh, huh what's…" The brunette mumbled.

"It's time to go, Lynn the sun is almost up."

"Yeah, yeah I'm coming." Lynn said removing the blankets, to reveal her and her partner's naked bodies. Lynn turned to face him and gave him a kiss.

"Later Stinkcoln, last night was fun." She whispered as she hopped out of bed, Lucy looked over at Lincoln's softened member and sighed.

Lucy Loud, thirteen years old, found out about her sibling's relationships from the beginning with Lori, when she was in the vents and had been watching them, not to blackmail them, but to make sure that they didn't get caught by the others, she had a front row seat to forbidden love and she wasn't losing it. Since then she comforted the sisters that Lincoln has been with (so far) and informed them that she knows and decided to come to an agreement, she would make sure that they weren't caught, but keep what she wanted a secret. Of course in the beginning it was quite difficult since there was only one Lincoln, and everyone wanted him, and since Leni, Luna, and Luan needed help with their kids, she would help them, and with Lynn's started showing signs she was ready to help her too since their parents are still trying to figure out who has been doing this to their children, they have been pretty strict on the others, just in case. Right now Lynn crashed into her bed and Lucy, wearing her usual white tee and black and white striped PJs, headed to Leni's room as she entered she found Leni, feeding Liena.

"Oh hey Lucy, is Lynn finished with Linky?" She asked

"Yeah, but Lincoln is still asleep, but you'll get to have your turn with him." She said

"Yay." She said, "You hear that Liena, we can spend the day with daddy." She said Lucy soon left and headed towards Luan and Luna's room and found them chatting on their phones.

"I'm sorry Benny, but my dad doesn't want us going out, thinking that will get knocked up again. He still thinks, Libby is yours." She said holding her baby who was sucking on her thumb. Luna had Lyra sitting on the beanbag while listening to classical music.

"Yes, i'm making sure she's listening to mozart, but if she becomes a stiff, it'll be on you luv." Luna joked, Lucy smiled as she got to see her family grow.

-Days Later-

Lucy, wearing a black hoodie and short matching skirt, with black and white striped stockings, was coming home from school when she heard complaining.

"Come on Linky, I'm sorry." Lucy heard Lynn say.

"No, I'm not in the mood right now, Lynn." He said

"Come on, you can't expect me to go cold turkey." She said as the door slammed shut, Lynn then kicks the door.

"What's going on?" Lucy asked appearing out of nowhere, scaring her sister.

"Oh Luce, man I just wanted to get my rocks off, but mr. prude there decided to "take a break" man, giving a girl blueballs, once she has a taste." Lynn said walking away, Lucy didn't want to any discord so she needed to fix this for her fantasy.

-Later that night-

After making sure that her parents are asleep, Lucy, wearing only a large black shirt, snuck her way to her brother's room, she opened the door and peaked inside and found him laying there, as soon as she entered the room, she walked up to her brother and found him unkept, and pantless, his erection pulsing as he slept oh how she wanted to have a taste, but she needed to focus, she soon started to shake Lincoln.

"Lynn, not now i'm not in the mood." He said turning.

"Its not Lynn." Lucy said, Lincoln turned back and saw his sister.

"Lucy? What's wrong?" He asked

"You, why are you and Lynn fighting?"

"It wasn't a fight, Its just she can be a bit too rough, I want to take things slow, but she just…" Lincoln sighed as he sat up and sat next to her.

"Hey hey I know, but you have to understand, Lynn can be much, but its the best way she show it." She said

"I know, its just I wish she could be more tender." He admitted.

"Tender how?" Lucy asked

"Well like, she could let me lead from time to time." He said.

"What did you want her to do?" She asked

"Well, maybe have her sit on my lap." He said, Lucy then did what he said shocking the boy.

"Luce.. what are…"

"What else?" She interrupted, resting her hands on his shoulders.

"Well, maybe not be so forceful with her kisses, just something soft." He said, Lucy then inched closer to him and gave him a soft peck.

"L-Like that?" She asked

"Close, I wanted to do it." He said getting closer to her as their lips touched, Lucy sighed in contempt as they parted, the two had a large blush.

"W-what else?" She asked. Lincoln then slid his hand under her shirt, going up her stomach, his warm fingers, made her tingle. He soon lifted her shirt off leaving her clad in her black and white striped bra and panties. Her soft pale skin was glowing in the moonlight as he started leaving butterfly kisses on her neck, as his arms snaked around her back unclipping her bra upon taking it off, Lucy stopped him.

"Wait this isn't right… I don't…" Lucy was covering her chest as she tried to calm things down, but Lincoln grabbed her hand and stared at her, Lucy soon gave in she dropped her arm and her breast was bare to him. Lincoln soon started to lick her budding breast while his other hand wandered to her developing cheeks. Lucy soon wrapped her arms around his head as he suckled. Lincoln soon parted from her embrace.

"Lucy, I can't hold back anymore." He said

"I know." She said as they started kissing again, this time more sensual, Lincoln soon laid back with her on top of him, refesuing too break the kiss, Lucy soon break is and stood up, she then slid off her bother's shirt. Now that they are shirtless Lucy slid her hand on his chest and over his nipples, making tiny circle around his aeroles, making the boy moan, Lincoln soon retalaitaed by squeezing her ass cheeks. She chuckled as she bends over and kisses him again, Lucy soon felt his hands wonder, sliding her panties to the side and started prodding around till he felt something wet. Lucy soon stops him.

"Wait, we can't I… we can't do this, I wasn't supposed too interfere." She said.

"Why not?" He asked in concern

"it wasn't supposed to be like this, you were just supposed to be with the others, not me." she said.

"why not you, I don't mind sharing." Lincoln insisted. "besides, to be honest I wanted to be with you for awhile now." he admitted.

"R-Really?" she asked in shock

"Yeah, it's not like things will change between us, plus you take care of us, and I think that should be properly rewarded." he said. Lucy soo. Lifted her bangs revealing her teary eyes along with a shaking smile. Lincoln soon sits up and hugs her and she hugs back.

"Do you want to continue?" He asked, petting her head, she nods. "Then could you tend to me down there." He asked. Lucy smiled as she crawled down and pulled his boxers down, his throbbing erection pulsing and standing up at attention. She smiled as she started rubbing his dick while pressing it against her face. Her anxious smile was evident on her face, as she rubbed her face with is cock, she then moved his cock towards her lips leaving kisses until she opened her mouth and engulfed, since this was her first time she only took him to the middle of his shaft, gently sucking him off as she slid down her stomach and started rubbing her soaked panties, Lincoln was letting out soft moans as he patted her head.

"Lucy, you're doing amazing." He moaned, Lucy moaned as she accepted the compliment. "Shit i'm… ahh!" Lincoln cums down in mouth shockingly, she pulls away and holds her mouth.

"Ah wait, I'll…" He then saw her swallow the contents in her mouth.

"Blag, how can Lynn swallow this stuff." She said

"You didn't have to swallow it." He chuckled.

"We both know I did." She said, clearing her throat.

"You want to keep going?" He asked. She nods as she stood up and pulled her panties down, now that she was completely naked, she felt her face getting red, Lincoln then grabbed her hand and rubbed the back of it with his thumb reassuring her that it's okay, he then pulled her onto his lap, she soon held his cock in her hands. She soon lifted her hips and rubs the tip of his cock with her waiting hole, she intertwined her hands with her brother's as she carefully went down, biting her lips as she took inch by inch still she reached the base, She almost lets out a loud moan, but pulled her in for a kiss, lincoln caressed her cheek and started moving her, she winces a bit, but soon the pain died down and she soon starts moving faster and faster.

"Lucy, you feel so good." He moaned breaking the kiss

"So do you, big brother." She moaned. "Please don't stop." Lincoln then soon sood up holding her by her legs as he plunged himself deeper into her, she had to bite her lip as he thrusted harder and harder, Lincoln soon took her to the bed and placed her down, putting her into a mating press, Lucy just couldn't hold back as she started going more rough and faster.

"Yes, yes yes, harder Lincoln, Lincoln!" She moaned

"Lucy, you feel so good, so tight I can't…" Lucy then locked him in place. Lincoln stops and saw her reassuring smile, he then gave her a smile and continued his fast pace, till he reached his limit.

"I'm cuming!" He moaned in her ear, and she happily accepted it, wrapping her arms around his back as every twitch of his cock filled her womb up. As soon as he finished Lincoln went limp on top of her.

"Wow, no wonder the girls don't want to let you go." She said

"That's not the reason why… Luce." He said

"Why's that?"She asked

"You think I'd be done after one go?" He said as he started thrusting again, making his younger sister moan again.

-Next Morning-

The sunshine filled Lincoln's bedroom as it landed on Lucy's bangs, she sits up holding the blanket to her large chest as she grabbed her bra and panties, putting them on as she looks at her brother's sleeping face, leaving a kiss on his cheek as she stood up, grabbing her robe and leaving the room, closing the door quietly as she head towards her room, she heard someone talking.

"...Yeah Yeah I know you want to see me, but I think the others are getting suspicious, besides we met last weak, or is your dementia setting it? Right, right, fine i'll find someway to see you." she said, hanging up.

"Talking to him again, Luan."

"Oh sh… Lucy, don't sneak up on me like that, and what's it to you." Luan insisted.

"Because I care about Lincoln, he as well as Liby, is going to find out eventually."

"Not unless you stay quiet." She said

"My quiet comes at price, dear sister." Lucy said smiling.

"Oh come on, I already gave up my weekend with Lincoln." She whined

"And it looks like you're giving up another one." She said, Luan left with a huff gripping her phone.

"You know, one of these days she's going to kill you." a young voice said, Lucy turned to find her daughter, Lupa scratching her stomach/

"She knows she can't touch me, child." Lucy said. "Besides I got you some alone time with your father." Lucy said

"Great, let's hope he's not drained by the time I can get to him." Lupa said headed downstairs for breakfast.