(A/N: Okay so as the summary says, this story is based in the "Necessary Evil" AU, where Autumn and Lucas are a Sophmore and Junior in High School respectively. I'm planning on doing a story later with them that will be much darker in tone but when I make up characters like these, sometimes I just like to get a feel for them. See how they interact in a story that isn't the story I'm planning on writing and all. This is one of those stories. Pretty much exists so I get a feeling for how their respective psychoses affect their personalities and how they react to people. So...yeah...that's all you really need to know. Though I guess if you can't be bothered to read "Necessary Evil" or you have and don't completely remember it, basically it's a story where Mindy's pregnant and insists on having the baby despite the dangers it would face and childhood it wouldn't have since she'd absolutely train it as soon as possible. Though she went a bit...gung ho in the sense that she trained them on everything as soon as they could absorb the information. So...they were killing and torturing before they really even developed a morality yet so...yeah...not the best idea but it did save them from being killed once so there's that. Anyway, that's all you need to know. Enjoy the story.)

The sound of bodies colliding rang through the cafeteria followed by the inevitable tray of food falling to the floor.

"What the fuck?! Watch where you're going, Cunty Smurf! I know it has to be hard to see over that gigantic fucking forehead of yours but at least put forth the effort!" A pretty brunette snarled after checking to make sure that none of the offending tray's contents ended up on her clothing, which looked way too expensive for school. Sure, she'd been the one who hadn't been paying attention to where she was walking, but she was also pretty and popular so who was actually at fault wasn't important.

"…sorry Ashleigh…" Autumn mumbled, trying to quickly gather up all of the food that scattered over the floor back onto the tray.

"Pfft! Whatever. I don't want any of the food here anyway. It's fucking gross." Ashleigh bumped Autumn back down on the floor causing the tray to spill yet again as she walked by, the sound of her heels echoing through the room. As Ashleigh left, so did three others, each giving Autumn a look of disgust for her grievance against their fearless leader. Only two of them gave a look of apology. And those were the two males in her posse. And as soon as they gave it, Ashleigh's glare made them lose it just as quickly as they left the cafeteria and headed to the parking lot.

This wasn't exactly a new thing for Autumn. Ashleigh picked on her all the time for the slightest reasons. Sure, she wasn't the only one, but she got a feeling that Ashleigh has it in for her specifically for some reason. A few hours later, Autumn was waiting by the bleachers on the football field as one of Ashleigh's group walked up to her.

"You're still fucking her, right?" Autumn asked.

Lucas paused, looking shocked for a fraction of a second before any sense of an emotion on his face suddenly left him. "I never told you I was fucking her."

Autumn rolled her eyes. "You didn't have to, numbnuts. Every time that bitch is mean to me and you pretend like it bothers you, she immediately gives you a look to enforce her ownership back on you. She makes sure that you know that if you take my side over hers she won't fuck you anymore. It's all in the micro-expressions."

"I'm fully aware of this. You are not the only one who can read them." Lucas calmly responded.

"God, I just want to kill that bitch! That cocky fucking expression. I'd like to see how cocky she is once she starts losing some limbs." Autumn slowly licked her lips. "I'd start with her fingernails."

"You will do no such thing." Lucas replied sternly.

"Oh fuck you! Just because she's good in the sack-"

"First off," Lucas interrupted. "Her sexual performance is merely adequate. I've experienced better. Secondly, my sexual relationship with Ashleigh has nothing to with me forbidding your proposed attack. You enjoy killing too much. You always make a show of it. You'll draw attention, either with her screams or with the mangled excuse for a corpse that you'd leave behind. That is unacceptable. Living here is pleasing enough for me. I have no wish to move."

"Only if they find the body…" Autumn mumbled.

"Thirdly," Lucas continued, paying no attention to Autumn's comment. "Ashleigh is a very high profile person. We avoid high profile-"

"Avoid?!" Autumn growled. "You're literally fucking her! You're not even her goddamn boyfriend!"

"I portray myself as a nobody. I go to school, learn my education, and go home. I do my best to just blend into other students. You know this." Lucas clarified. "Ashleigh was the one who showed an interest in me. It would raise more attention if I turned her down. And if I turned down her sexual advances, she would draw more attention to me out of spite."

"And yet, she draws attention to me because of that." Autumn grumbled, crossing her arms. "Funny how it's fine if I'm the one getting it up the ass."

Lucas blinked before continuing, "Your situation is unfortunate. And due to your explosive anger if nothing else, if I could lessen the stress of your situation then I would. Unfortunately, the source of her particular dislike of you is out of my control."

Autumn rolled her eyes. "Because she's a bitch and doesn't like that I'm your sister?"

"No," Lucas shook her head. "It has nothing to do with me. It's because her boyfriend is attracted to you."

Autumn snapped her head to Lucas, "Matt?! Matt wants to fuck me?"

"I'd suppose so. Ironically, I think it started as sympathy when she was as mean to you as she was to everyone else and as soon as she realized that he was attracted to you, it just made her focus more on you, which only made him notice you more. Its an interesting case of cause and effect."

"Cause and-?" Autumn pinched the bridge of her nose in frustration. Sometimes her brother's practical way of looking at things really pissed her off. She took a deep breath and absorbed the new information. "Okay…so…I can't kill her…can I at do something? Fuck with her head so I at least feel justified with how much she hates me?"

"I feel anything you would do would draw more attention to us." Lucas stated bluntly.

"Not as much as seeing how many times I can wrap her spine around the flagpole before she stops breathing…" Autumn mumbled, licking her lips again. But there wasn't a response and in a conversation like this, especially with Lucas, silence was very bad. Her head darted to look at her brother, who was giving her an expression she was more familiar with than she liked to admit. The other thing she hated to admit was how much fear that expression put through her each and every time.

"Lucas…I'm your sister. You love me, remember? We've been over this."

"I do love you." Lucas said, thoughtfully. "I'm just thinking that logically, killing you makes the most sense. You're not as high profile. In fact, we go out of our way to be unnoticeable. If this situation puts you in so much agony-"

"If you kill me, even if you make it look like an accident, the police will look into our family, who has a lot to hide. And our parents love us too. They want us both alive, right? They're emotional. If they lose one of us, they'll get reckless on patrol or something. Whereas people expect high school drama. It draws attention in small bursts but it's still normal, more or less." Autumn tried to remain as calm as possible as she covered all her bases. Lucas was a very good liar. She needed to be positive he agreed with her. Her life depended on it. She couldn't just prove her point, she had to logically destroy his argument.

Lucas looked up, pondering. "Fair enough. What do you have in mind?"

"Guys…like to take a girl's virginity, right? That's a thing?" Autumn asked, still keeping an eye on Lucas just in case.

"That is correct." Lucas nodded. "Though personally, I've never understood the appeal. An experienced person would give a better performance and would be more enjoyable in theory. I'd previously assumed it was to groom a girl with no sexual habits into someone who suits you but most guys who blatantly search put virgins only want them that one time. Wait…are you asking this because-"

"I'm planning on giving Matt my cherry? You bet your ass." Autumn grinned widely. "Even if he didn't want me after, I'd know I took him from her for-"

"Actually, Matt isn't like that. He prefers a personal connection. To have intercourse with him, he would have to be romantically unattached from Ashleigh."

Autumn sneered. "I'd have to date him?" She then moaned thoughtfully. "I can work with that, I guess. Just means I'd have to steal him from her more…thoroughly. So what do I have to do to be more attractive to get his attention?"

Lucas shrugged, which was an odd gesture for him. "From what I've been able to gather, boys already find you attractive."

Autumn blinked in surprise, her head snapping to her older brother. "They what? Since when? No one ever hits on me. I was starting to think my forehead really was as repulsive as Ashleigh makes it out to be."

Lucas rolled his eyes. "It's not that big. It's just slightly bigger than average. Your bangs make it a non issue. It's the only thing that Ashleigh can pick at you for. That and your height, which most guys take as a benefit anyway. Guys come to me to find out more about you all the time."

There was an obvious pause between them before Autumn continued. "And you tell them…?"

"That you're overly religious and saving yourself sexually speaking for marriage." Lucas replied.

Autumn's eyes bulged. "You what?" She immediately found herself more curious than upset. With most brothers who'd do this, it would be so their friends aren't fucking their sister, but with Lucas…there was a logical reason to be her 'boy shield'. "…Why?"

Lucas raised an eyebrow as if the answer was obvious. "Because I'm fully aware of what stimulates you sexually and I'm not entirely sure that they would survive the experience."

To her brother's surprise, Autumn stifled a loud laugh. "Okay, fair point." Regaining herself, Autumn continued, "However, I'd need Matt alive for the plan to work and if I killed him, you might kill me for blowing our cover so it's all a moot point. I'll behave."

"You're forgetting something." Lucas pointed out. "Should you successfully seduce Matt from Ashleigh, I'd still be with her group. She'd probably get closer with me to spite you. I have no interest in being popular."

Autumn groaned, leaning back as she thought. "Well…okay, what if…I'm fine with that. I'm your loving sister. I just want you to be happy. I could even try to be friends with her when you two are official. And then the only way she could hurt me is to brutally dump you."

This time Lucas blinked, taking in the new information. "I think that would be acceptable by me. Okay, I'll allow your plan."

"Okay, so…what do I need to practice? Sexually speaking. Like, what doesn't Ashleigh do?" Autumn asked with a focused look.

"Um…" Lucas stumbled around his words, something extremely out of character for him. "I don't think that's necessary information. Matt would care more about your personality."

Autumn rolled her eyes. "Well, duh! If he's attracted to me because I'm a victim, I already have an in and I can find out his hobbies and shit on my own. I need to know the sex stuff to seal the deal. Make sure I'm better than Ashleigh in every way but still stay…innocent…" Her eyes narrowed. "What the fuck is up with you? Just tell me what you don't like about the bitch sexually? Is she too kinky? Not kinky enough? Does she just lay there? Is her pussy not tight? Details!"

There was an awkward pause before Lucas sighed. "I think talking to you about detailed sexual situations that are connected to both of us makes me very uncomfortable."

There was another pause. "Talking with me about fucking freaks you out?"

"I should not have said that outloud." Lucas stated to himself, seeing Autumn's growing smile.

"No. No you should not. Too late now though." She said, gleefully. Nothing ever disturbed Lucas. He was basically a robot. It was like he'd just handed her a gun with ammunition and said he couldn't see out of his left eye. But business before pleasure. "Suck it up, though. I need this information."

Lucas sighed. "I'm not exactly the best person to ask this question."

Autumn rolled her eyes again. "No shit, Sherlock. I'm fully aware that you could care less about sex. Same here, but it's means to an end. You know what she's like in the sack and you know what guys generally want in the sack, so spill."

There was yet another long pause before Lucas finally answered. "She hates to perform fellatio."

"So, suck his dick." Autumn nodded. "I can do that…It kinda works with me being a prude. If I'm 'saving myself' and all, blowing him and handjobs and shit could be a gateway into it."

"I've never understood that logic either." Lucas sighed. "If you're stimulating a penis until it orgasms, it's a form of sex no matter what justifications you is to prove it otherwise."

Autumn perked up suddenly. "Speaking of which, we're in agreement that Mom and Dad can't know about this?"

Lucas blew out a puff of air. "That you're planning to lose your virginity for the sake of petty revenge against a girl who's bullying you? Yes, I'd say that's a wise choice. Mom would kick your ass, Dad would scold you and then Mom would kick your ass again."

Autumn threw back her head into another laugh. "And then ground me forever. But yeah, this is just between us. So…suck Matt's dick, probably swallow. Gross, but whatever. Anything else I should do?"

Lucas narrowed his eyes. "I can't tell. Are you genuinely asking or are you're just trying to make me uncomfortable?"

"Honestly?" Autumn grinned wickedly. "A little of Column A…"

(A/N: And there you have it. It was actually pretty fun playing with these characters in a more...joyful setting. While I wouldn't say going forward with this and actually doing the plan is necessary, I kinda want to do it just so there could be some more interactions and we can get a better feel of how different Autumn and Lucas are with each other and how they are with literally everyone else. Even Dave and Mindy don't know exactly how...sociopathic Lucas is or exactly how psychopathic Autumn is. They both caught on really quick that they needed to play ball at least somewhat even with them, so the only ones that know the extent of how fucked up they are are Autumn and Lucas themselves, who see it as completely normal. They grew up with each other, so they know how to deal with each other's eccentricities. But yeah, I'm kinda tempted to keep going with this story even though I have a good feel for the characters. Would anyone be down for that?)