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The house was nearly pitch black, and dead silent.
The only sounds that could be heard were in a particular room. The faint rustling of sheets. Soft, contained sounds of pleasure, muffled in a kiss the two drones were locked in to keep themselves quiet. Though, even that produced obscene noises from their tongues rubbing against each other.
N broke the kiss and looked at what he was doing. Cyn's small body pressed against his, her legs wrapped around his waist as they rutted their fully clothed forms against each other.
She's literally your sister, you sick freak.
The realisation was what made him blow. His hips stuttered, and soon, he was ejaculating into his pants with a muffled groan. He sighed and rolled over onto his back.
"Already?" Cyn questioned, sitting up.
"Yeah, sorry..." N absentmindedly undid his pants just to relieve pressure on his still hard cock.
Of course that's not enough, you pervert. You want to be inside her, don't you? That's where you always end up, no matter how many times you promise to do better.
"You are still hard." Cyn observed, reaching out to clumsily stroke him. Her little hands always felt so much better than his own. "I can help. Like a good sister."
N simultaneously hated and loved the way she said that. He hated and loved being reminded of their relationship. Of how wrong this was. And the fact that he felt anything other than pure disgust just made him feel worse about himself.
She reached under her dress to pull off the shorts and panties she was forced to wear for modesty's sake. Both were wet by now anyway. She tossed them aside carelessly before crawling up his body, straddling him. He sighed shakily at the sight of her on top of him.
"Sigh. I've been wanting big brother all day."
He chuckled breathlessly. "I could tell."
Cyn had picked up some... habits lately. He wasn't sure where they came from. She just suddenly became very touchy and clingy. And then that morphed into outright teasing - sitting on his lap to feel him get hard, casually bending over beds and tables in front of him.
And you loved it, didn't you? You loved that she started making moves on you so you had a chance to deny it. But you want it just as badly. That's why this little ritual between you two started. You aren't man enough to say no to her.
After Cyn drove him crazy enough grinding her bare pussy against his cock, she finally began sliding down on it. They both moaned and whimpered as N's hard cock pushed into her wet pussy. Soon, she was all full of her big brother, smiling in content.
She began to ride him gently, bracing her hands on his chest as her body moved up and down with little grace. He placed his hands on her hips to help guide her. She had trouble controlling her body at times, so it was natural for N to help her in minor ways. It was either that or the fact that she's not very experienced with this yet.
Because she's a child. A vulnerable child with an attachment to her big brother. Great job, N. You're no better than a groomer.
Cyn straightened herself a little to lift up the hem of her dress, showing their point of connection. She knew how much he liked to see it. His cock plunging in and out of that tight, wet heat. As expected, he groaned and began thrusting into her faster.
This is so wrong this is so wrong this is so fucking wrong it's so wrong, he thought to himself amidst mind melting pleasure.
And yet, you're still doing it. You continue to do it. Every night for two weeks now. Sure, you technically tried to set boundaries, but how long did that last? Not even a full day.
She was tempting you, you told yourself. Seeking this out. Yeah, great excuse there. Why was she doing it in the first place? It's your fault.
It's your fault she got attached to you. It's your fault she never learned the difference between a brother and a crush. It's your fault she somehow learned about sexual content when you weren't watching her. It's your fault you didn't put an end to it immediately. It's your fault she's only become more dependent on you since this started. It's your fault she'll never bother socialising with anyone else or trying to find meaningful relationships elsewhere.
This is all your fault, N. You're a failure of a brother and a caretaker. You don't deserve to be known as "big brother." You don't deserve to love her in this way. You don't deserve to be around her at all.
"Big brother... feels so good..." Her voice grounded him in reality again. She was always so cute like this, moaning for him, looking at him like he was the only thing that mattered.
"Yeah, feels good for me too, sweetheart... you're so perfect..."
"Smile. Incorrect. That's you."
He never understood how she managed to sound so innocently sweet while having sex with her brother. "Are you close yet?"
"Nod. Very close."
So was he. He could never last long with his sister. He tightened his grip on her sides and moved in and out of her desperately, chasing both of their releases. It didn't take much more effort to get them there. They came nearly at the same time, N first and Cyn following shortly after. He continued thrusting as he pumped his synthetic seed into her, drawing out the feeling.
For a brief moment, his mind was clear, focused on the pure pleasure of their sinful lovemaking. Only for a brief moment though. It came flooding back the second he pulled out and saw the mess between her legs.
Incestuous freak. What kind of drone does this to an innocent little girl who looks up to them? This is abuse, isn't it? Even if she wants it, she doesn't know any better. You're the big brother. It's your job to guide her. Instead, you're using sex to keep her happy and you're using your relationship with her to get off. This is something only the lowest scum on the earth did.
It took Cyn a moment to reorient herself. Once she did, she was looking at the same mess he was. "Big brother is messy now." She noted, climbing off him and laying on her stomach between his legs. "I will clean you. Mischievous smile."
"Oh, no- you don't have to-" He started to object, but her mouth was already on him, soaking his dick in saliva and swirling her tongue around it. He moaned and tilted his head back against the pillow. This was a common pattern with them. N's objections were short lived and often ended as soon as she made a move on him. God, he was pathetic.
She took great care cleaning him with her tongue, licking over every inch of his cock. In fact, she seemed so devoted to cleaning him that she persisted even after his dick was cleaned of the fluids from their intercourse. He didn't even realise she'd been doing more than simply "cleaning" until he suddenly came down her throat.
"Hey, that was just an excuse, wasn't it?" He accused playfully after his third orgasm of the night.
"Oops. Guilty." Cyn admitted with a cute smile, licking her lips to clear any residue left over.
He shook his head in mock exasperation, but he was smiling. "Rascal," he murmured, pulling her up to kiss her briefly. "Get some sleep, you need to charge before morning."
"Head tilt. Don't you as well?"
"Yeah, but... I have to clean our clothes before anyone wakes up. I'll be back soon. But you need sleep." He slid off the edge of the bed to gather her discarded undergarments from earlier.
"Pout. Fine." Cyn reluctantly laid her head down, her LED optics closing. He smiled at the sight and leaned down to kiss her forehead. She was so precious, he couldn't help himself. Then he began walking towards the door.
"I love you, big brother."
N paused for a moment and looked back at her. She didn't say anything else after that, already asleep. He sighed and turned around, continuing to leave the room. He didn't say it back. He didn't deserve to. What they had wasn't love, it was indulgence. Dependence.
As he walked through the dead house with practiced silence, his thoughts were running again, replaying everything they'd done. He was such a bad person.
He would never tell Cyn he thought that, of course. He'd never dump his emotional issues on her. She was confused enough, seeking out intimacy from him. As her big brother, he should deal with his pathetic problems himself.
Well, if you feel so bad, do something about it. He thought to himself with determination. Stop spoiling her. Stop babying her. Stop doing everything for her. Make her socialise with other people. She can't grow up like this. It had gone on too long already. It'd be difficult, but necessary to get her on the right track. If you really love her, that's exactly what you'll do, starting tomorrow.
N nodded to himself assuredly. That was the only logical way forward. Sure, he'd been giving himself that exact same speech for two weeks now and kept giving in anyway, but this time would be different! Right?
...
Who was he kidding. He was a slave to her feelings. If she wanted something, she got it. If she cried, he comforted her. If she was happy, he did everything possible to keep her that way. That's the way it had been since she first started calling him "big brother." That's the way it'd be when he died.
And he loved it that way.