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The Device

The Device

by Jamesmadalyn
19 min read
4.61 (9800 views)
incestalienscifimotherbrother
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########## The Pool ##########

"To be honest, I don't think it's that weird."

"Really? I thought you would've found it at least a little weird."

"Weird? You mean like fucking your sister in the middle of the night, with a massive alien dick, and a short fucking alien body."

"Well yeah but, my own mom? I mean maybe the infatuation with you makes sense, you're only a few years older than me, all guys with hot older sisters hear about them constantly. I figured most guys my age would rub one out if they had a sister like you."

"To be honest," my sister turned and faced me in her deck chair and she began to offer her retort, "there's an entire complex named after what you're experiencing. It's the Oedipus complex, and of course boys who are stunted emotionally are going to lust after their moms." Sarah closed her eyes and turned towards to face the sun again as she finished her point, apparently considering it enough to finish the matter.

The youngest of the two Thompson siblings were in the back yard by the family's expansive pool enjoying a day off school and work. They laid in the lounge chairs nearest each other, nearly finished with a smoothie Sarah had concocted. Mark had worn his signature plain blue swimsuit, Sarah something a little skimpier than she wouldn't have worn before her and Mark had begun their trysts. Mark had ogled his sister the entire afternoon after she had donned it, staring at her legs and stomach as she had become more bronze through the tan session. It was amazing how sexy a woman could be when she had been strictly off limits just a week or two prior.

"You think I have an oedipus complex?" Was all that Mark could manage to reply.

"To be honest, you've probably got that and some more coming to you. I don't think psychologists have a term yet for all the mental health issues you're going to suffer." Sarah dropped one side of her shades with her comment, striking a wink out at her brother in the process.

That was one of the things that Mark got off on the most now having started this alien-incest relationship with his sister. That they could enjoy fucking each other, using his new bodies in ways that were typically reserved for people in porn movies - then later they could be right back to a typical brother/sister teasing relationship that had more sex in the air than the Playboy Mansion.

Mark rolled his eyes again as his sister's latest comment. She wasn't wrong. His newfound powers came with a good deal of anxiety outside the patented horniness they enabled. He wasn't sure if he was abusing the powers the way he had been using them, and that had caused him to worry. But would the makers of the watch on his wrist allow him to abuse it if he was really using it so incorrectly? Surely the makers of such an amazing device would be aware of its effects on the human body, or at least they had a way they could monitor him should he misuse it.

He held his watch up to the air and rotated it so it caught the light from the sun. It still only had two of several inlets lit up. Short-Stack and Two-Arms were how he knew them. Two of his new best friends.

After having sat for a moment of silence, Sarah started her point again: "The Oedipus Complex is pretty fucked up. Debunked, but interesting."

"What is it?" Mark turned on his side to look directly at his sister.

"So, apparently a son or daughter develops a crush when they're younger on the parent of the opposite sex, then grow resentful of the parent of the same sex and represses themselves sexually." Sarah paused, adjusted herself, and turned over, exposing her back to the sun. "Basically, it means you have a crush on mom and probably a little rivalry with dad. That is, if you subscribe to goofy stuff like that."

"So, it's not just a crush towards mom, but hard feelings towards dad? That's intense."

"It makes sense if you're a man maybe. Something with men and trying to be the 'alpha' or the 'man' of the house."

Mark couldn't deny that the watch had given him a newfound sense of confidence and entitlement. It didn't quite feel natural, it was most certainly the watch's doing. There was something about being able to transform and gain new power that made one's bravado go off the charts.

"So anyways Mr. 'Man-of-the-House'," Sarah started, "would you be useful for once and go fill me back up on my smoothie?" She offered an outstretched hand with the cup of finished smoothie to her brother.

########## Dinner ##########

Family dinners were now amongst the list of things that had also become strange. Mark, Sarah, their mother Lianna, and their father Brian all sat around their dinner table with a meal Brian had prepared. It was taco night at the Thompson household, or "white-people" taco night as the family loved to joke. The tacos weren't terrible, but they were cooked with a bias against properly cooked Mexican food that was hard to deny.

Aside from Mark sat Sarah. She had on white pants and a black low ride top. Nothing terribly inappropriate, but she showed enough skin of her stomach that Mark had to sneak a few looks when he was able. For a dinner like this the whole family liked to dress up a little bit, even if they had nowhere to go. It made the night a little more special than dinner was normally, and it felt like a special occasion. Sarah was dressed appropriately, not looking to make a splash at such a family-oriented event.

Mark's father sat catty corned to him and wore a checkered button up and pants. A simple outfit that he typically wore to work, something designed (as far as Mark figured) to make him look docile to the other men of his office. Something designed to fit in, be the ideal vision of "work-appropriate". Mark wore a nice sweater and jeans. It may not be the symbol of rebellion that he wanted to be, but he figured it wasn't as terrible as the checkered plaid his father was comfortable with.

Mark couldn't help but think about what Sarah had said by the pool earlier. 'A rivalry with his father' she had called it. The Oedipus Complex. He had been the spitting image of a dutiful son for his family his entire life, he had looked up to his father. Now, having the power of the watch, he could feel the latent resentment slipping in, corrupting his image of his entire family.

Across from Mark sat the woman he couldn't stop thinking about for the past forty-eight hours. She wore black stockings that disappeared into a black leather pencil skirt that started midway up her thighs. The skirt itself gave way to a white sweater top that made more sense in the cold climate of the winter (although Lianna wouldn't die of heat stroke in their air-conditioning). The white sweater hugged Lianna perfectly, showing off the wonderful breasts she had been endowed with as a younger woman.

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Even with his newfound entitlement, he still felt kid with a crush again - unable to speak properly around her, unable to look at her directly, as if she could see his intentions in his eyes. Each look at her outfit tonight at dinner felt like stealing, taking a minuscule bit of detail discreetly each time. It felt like stealing from his father, and he knew he loved every second of it.

Sarah knew why Mark was quiet tonight and was determined to use it against him. It started with light touch: moving around him a little too tightly when making their plates, grabbing his ass when their parents weren't looking. Now, at the table, she worked to escalate it.

See, a kick underneath the table here and there didn't make him nervous. Sarah and Mark were never truly stranger to each other, especially not as adults. What Sarah decided to escalate further too in the night is what really made him nervous.

"So, Mark. Big fan of your new watch I see. You ever take that thing off?" She announced to the table.

Mark instantly swiveled his head in the direction of his sister, staring daggers. She held a smirk on her face that could destroy kingdoms, bring down nations. How he responded could mean life or death for his future.

"Well uh," he was mid bite, mouth still full of taco, "it's a nice watch, am I not allowed to wear it?" He thought it best to play it nonchalant.

"I noticed that. I don't think you've taken that thing off in the past week or two." His father observed. "When did you get that thing anyways?"

"I got it last week, it's a new brand, they had a few people advertising at the gym the past month or so." He was thinking on his feet, trying not to get caught up in any lie too specific.

"Oh that's cool." His father insisted on continuing with the conversation, irking Mark. He gestured at Mark's wrist with his fork. "What brand is that, I don't think I've seen anything like it."

"I think it's like a, pop-up brand or something, isn't it Mark?" Sarah asked rhetorically. "Do they have a website or anything, I'll look them up?" She was clearly trying to push the limits around their mom and dad. Didn't she know this would screw her too if they found out it wasn't a normal watch?

Sarah was close enough to Mark that she could prop a leg up onto his from under the family dining table, she maneuvered her heel towards his crotch. As much as he was annoyed and nervous at the prospect of them being caught in such a fucked up situation, it turned him on beyond belief at the same time.

"I don't think they have a website, I think it's just a nameless brand, or it's an offshoot of something, maybe Casio or G-Shock." He continued, further impounding himself in the lie, "I think it was a one-off thing, they probably know someone at the gym and thought it would be a good place to sell something new." He sounded unsure of himself now, he was certain he was caught in the lie.

"Well, I'm glad you got something cool. I'm glad you're earning some good money there dude. Go to college and you can have as many cool watches as you want!"

Mark was praying that the conversation was done. Sometimes it just paid best to be calm and collected when lying, most people would grow bored if you didn't get too defensive.

"I agree with dad Mark, I think it's a cool watch and I'm glad you have it, even if it's a little weird you won't take it off." Sarah said. Just when Mark thought that he might get out of the conversation about the watch, she continued. "Mom, what do you think about Mark's watch? Pretty cool little design huh?"

Lianna had been quiet the whole dinner up until now, which wasn't totally like her. She wasn't the kind to go on and on, but she wasn't the kind to stay as quiet as she had tonight. She looked up from where she had been focusing on grazing her food and gave Mark's watch a look. He couldn't be totally sure, but she seemed to regard it deeper than his father had, like she had recognized it.

It was the most Mark had looked at her the entire night. Nearly two hours of trying not to meet her gaze in case she'd be able to read his mind, or his ogling eyes. She was gorgeous, with both beauty and sexual appeal to match.

Her hair dropped down further to her shoulders, her eyes a light brown. Her lips full, her nose perfect. Features Mark had never noticed before were speaking out fully, like being able to bond with someone you saw every day, but never really knew.

Lianna was a perfectly aged version of Sarah with larger breasts. Her clothing usually contained them, but it was as if her sweater tonight was put on with the sole purpose of pushing the boundaries of how tight a sweater could be around family without being erotic.

Mark considered Sarah's thoughts from earlier on the Oedipus Complex. He didn't think he hated his father, maybe loathed him at sometimes, but he was still a good father. He figured that maybe he was more upset that such an insane piece of ass like his mother would go wasted on someone who probably lacked the talents and prerogative to make use of her.

He daydreamed in that moment about the things he could do to his mother with just the two new bodies that he had discovered. Like Sarah, he could pick her up with four-arms, throw her over his shoulder and carry her off to the bedroom. With the strength it contained he would no problem feeling her body as he did so. He could probably carry both his sister and his mother off at the same time if he really wanted to. He could practically feel himself in the scene, telling his dad he was the new man of the house while he carried off his wife and his daughter. Maybe he could get really fucked and make him clean up after them, tell the girls to get some rest for the next round as he did.

With short-stack... well you could do what short-stack was good for: lay massive pipe. There was no other body on Earth that had a penis as big, and he intended to have his mom and sister worship it as the god it was. While the four-armed body was perfect for two women, short-stack wasn't at all disadvantaged. He could have both of them on it with both hands and mouths. He could put it between his mother's breasts as he stood over her, Mark imagined the motion he would have to perform to really make use of every inch of the cock against her chest, she might even come close to swallowing it whole if her tits were as big as he thought they were.

Lianna cleared her throat, Mark snapped out of his dream and realized he had been staring directly at her. She shot him a look back. Just when it seemed like she would say something insightful she spoke. Mark's heart raced at the prospect of questioning the watch deeper.

"I think it's nice. Those lights are cool, there's that!"

Sarah's heel was pressed fully into Mark's crotch now, putting a deep pressure on his dick. He was half turned on, half pissed that his sister had made an attempt to get his new powers discovered. He'd pay her back with a brutal fuck later, he was certain of it.

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After that, conversation withdrew to normal. Sarah removed her heel eventually from Mark's crotch, Mark and Lianna both remained somewhat muted through the rest of the dinner. Mark kept his grudge towards his sister and refused to participate further with any extended conversation.

Near the end, while the family was finishing desert, a new light formed on the watch on Mark's wrist.

########## Revenge ##########

His mother, his father, his sister, even his older brother too. The watch brought a new complication to everything. Just two weeks ago Mark was content on starting college and going to the gym, and now he was worried about feelings between himself and the rest of his family, feelings that were primarily sexual.

Now Mark sat in his room. It had been hours since his parents had gone to bed, Sarah even went out with her friends for the first time in days. They had spent nearly every night for the past weeks together, usually fucking and experimenting with the new bodies. Was he upset with her that she had tried to oust him earlier just to get a rise out of him, or jealous that she had gone out with friends instead of staying in with him again and trying more?

It had been a while since Mark had hung out with his friends as well. Maybe it would be a good change of pace to go to a summer party, go up into the mountains. Maybe it would help get his mind off his watch, his sister, and his mom.

He stared down on the watch on his wrist and saw the new light that had formed after dinner. It sat there and beckoned to him, daring him to touch it and explore this new form. Was that truly what he wanted? To take this new body and go down another rabbit-hole? What if he became more lustful, wanted more control of his family?

An answer seemed to come in the form of a light-knock at the door. His sister must've came home, he didn't hear the front door, she must've come in a side door so she wouldn't wake anybody.

She open the door quietly, she was laughing, and drunk.

"Hiiiiii..." Sarah greeted him. "Hiiiii baby brother." She creeped further into the room, tip-toeing as if she was sneaking in. She must've sensed he was feeling tense. Sarah formed a pursed smile, her eyes had the lazy look of someone who had been drinking. "Is someone mad because they got teased by their sister about their alien waaaatch."

"I didn't think it was teasing, I thought it was rude."

"Oh c'mon," Sarah righted herself when she could sense that Mark wasn't feeling the joking vibe she tried to bring. She had her heals in one hand and brought the other hand up to help aid her argument: "What are mom and dad going to say? You have a weird watch on your wrist. You didn't think they would notice at some point? I was bringing it up now so they don't ask questions later."

Mark offered her nothing. Sarah smiled a little, squinted her eyes, tilted her head as she came to a more important realization: "You're mad I brought it up in front of mom aren't you? You were sulking all night and I forced a little awkward conversation huh? You're upset because of your little crush you pervert." Sarah, cheeks flush, continued, "don't be so upset. This is a little childish don't you think."

Maybe she was right, and maybe he was being a little childish. Still, he offered her nothing.

Sarah threw her heals to the side of the room and crossed the room to Mark. He hadn't noticed before, but she was wearing a, outfit identical to what his mom had worn to dinner. She continued to saunter over to his bed.

"Well, if you're really pissed off, you can take it out on me you know." She said in her deepest voice possible, tracing a finger from her pussy to her mouth as she walked closer to him. "Wanna hate fuck your sister because she's pissing you off?" Her finger traced around her lips now, probing onto her tongue on each rotation.

She reached the edge of the bed and lifted her leg up. Mark smelled the beer on her breath and... something more. He got a good whiff of a perfume he didn't recognize as his sister's instead...

"You can smell it huh?" Sarah leaned in on the bed. "Do you like the outfit, I was you undressing mom out of it with your eyes earlier." She dropped in onto his lap and laid there. "I'm wearing her perfume too. Stole it right before they went to bed. Smell like a lusty milf like our sweet, sweet, Lianna Thompson?"

Mark was struggling. This wasn't something simple like your crush giving you a deep hug or catching some ass at a football game. Mark doubted that his cock could get harder than it was right now. Even if he was mad at her, he had urges.

Sarah's hands wandered her body as she ground the back of her head into his lap. She was staring right up at him, looking into his eyes, thinking of ways she would torment him further. "We could hate fuck with your real body you know? I could suck you off right here, right now. Put your human dick into my mouth and poke the back of my throat?" She gave out a drunk giggle. "You know I have a dentist appointment in a week. They going to look at my throat and be so fucking confused."

Mark's cock actually did manage to get harder.

"You know there were some boys out with the girls and I tonight. Some of them tried hitting on me, I think they liked the outfit. A little hot out in this sweater, but I think it just turns men on more." She continued, "None of them have big. Alien. Juicy. Fat fucking cocks like my brother has. That's why I'm back here instead of going out with..."

Sarah's voice trailed off as she noticed the new light on Mark's watch. She nearly sobered up in an instant.

She nearly yelled in enjoyment.

"That's a new fucking body!" Mark brought his hand up to tell her to be quieter, lest they wake their parents with her drunk, loud, volume.

"That's a new fucking body Mark." She continued in a hushed, incredulous tone. Her eyes were wide with enjoyment. "Dude we have to see what it is, have you used it yet?"

"I haven't used it and I don't know if I want to. I don't know if I like what's going on with my body right now, with these bodies." He gestured to the watch. "I feel like I'm becoming... more lustful or something."

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