Foreword
: This story has nine chapters of about this length. The first four chapters are one-on-one with each family member, with dialogue suggesting faux incest. The last four chapters involve actual incest and group sex, including father-daughter, mother-son, and brother-sister. There are mild to moderate fetish elements, including feet, restraints, anal play, and spanking.
The Foundling
Chapter 3: Big Brother
Jacob pulled up to his house, scowling at the box truck blocking his normal parking spot at the curb. It was emblazoned with the logo of a local furniture company, so it was easy enough to figure out why they were there, although the cargo area was basically empty. Sighing with irritation, he parked on the other side of the street and hoped that the neighbors wouldn't have him towed.
As he walked into the house, Jake heard voices from upstairs and various banging sounds, plus the whine of some kind of power tool being operated. "Mom? Are you home?" he called out, hanging his keys on a hook by the door.
"She's upstairs, trying to take a nap!" said a cheerful voice from the kitchen, which he recognized as his new foster sister, or whatever the right term was. "There's some food in here if you want a snack before dinner!" she concluded brightly.
Jacob frowned, torn between hunger and a petulant desire to ignore the new family member as a passive-aggressive form of protest. He'd been flabbergasted that morning when his parents had introduced her and explained how much they wanted to keep her; it seemed so out of character for them. It was downright unbelievable when Abby had so happily offered to share a room with the new girl, given how territorial she was about her private space. When he hadn't been distracted by trying to learn things at college, Jake had been running through possible explanations for his family's bizarre behavior, unable to decide between the relative odds of brain damage, ghostly possession, and alien mind control. A rumbling from his belly eventually decided the issue of eating or isolating himself in his bedroom, and he reluctantly entered the kitchen.
Jacob stopped in his tracks in the doorway, eyes widening at the sight that greeted him. Shannon, his newly adopted sister or whatnot, was leaning over the island with her back turned toward him. She was wearing a pair of hip-hugging exercise shorts that were so small half her ass cheeks were exposed, perhaps even more with her bent over like she was. Her long, lean legs were also displayed to good effect in that position, but it was the bubbly buns that kept drawing Jake's eyes back to her posterior. His dick hardened painfully in his jeans.
Shannon turned partially to look back at him, smiling happily and giving him a wink, saying, "Hi there, Big Brother!" She waved an arm at a tray of what looked like baked potato skins, crispy with melted cheese. As appealing a sight as that was, her new half-on profile showed off the sports bra she was wearing, which had escaped Jake's notice while he was ogling her ass. The scrap of fabric clung to her breasts like paint, giving him an excellent view of the shape and weight of the one he could see, complete with a prominently erect nipple. He did his best to stifle a moan, and tried to move quickly to the other side of the counter, hoping she wouldn't notice how oddly he was walking thanks to his boner.
"So, how was college?" Shannon asked, leaning forward to grab another morsel of food, and causing her breasts to wobble slightly in their confinement as she moved. Jacob needed several attempts to manage a half-way articulate response, but his new sister didn't seem to mind his idiotic grunting, judging by her steady grin. When it became clear that he had no additional noises to make on the subject, she winked again and asked, "What time does Abby usually get home?"
Feeling that he needed to give a real answer to the question, Jacob composed himself as best he could, although he still wound up stalling for time with a long, "Um..." before he managed a legitimate response. "She has a volleyball match this afternoon. Right about now, actually. So she probably won't be home until seven or eight."
"Well, that's fine, then!" Shannon chirped, standing up straight and making her breasts bounce attractively. "The delivery guys should be long gone before she gets home!" Jacob replied with another unintelligible series of mumbles, but if his stupor bothered his new sister, she gave no sign of it.
"Well, you can have the rest of these things!" Shannon said, waving a hand at the tray. "I'm gonna go do some cardio in the living room. Feel free to join me!" With that, she turned and walked out of the kitchen, and Jacob couldn't prevent his eyes from following her, zeroing in on her flexing glutes. He wrestled with his conscience for a few moments, then hastily consumed the rest of the potato skins. His eyes watered from the heat, and he had to delay his pursuit of Shannon long enough to drink some water. By the time he recovered, he could hear the sounds of some kind of guided aerobics program that she was apparently watching.
Jacob once again found himself frozen in a doorway, arrested by a compelling vision. Shannon was merely doing exercises, but the flexing and bouncing and wobbling and jiggling that accompanied her movements, accentuated by clothes that did more to show off her curves than conceal them, had Jake grunting like an animal again. His new sister glanced around to give him a smile and a wink, but otherwise continued with her routine. He stood there watching her, rapt, and gradually gained an appreciation for the grace and sinuousness of her movements, above and beyond the sexual desire he could no longer deny.
The program only lasted for about twenty minutes, but it seemed longer to Jacob. Shannon was coated with a light sheen of sweat that made her shine, and a slight tinge of pink could be seen in her cheeks, which only made her look more attractive to him. Her breathing was a bit faster and deeper after the exercise, and drew his eyes to her heaving bosom. She said something to him, but the words had no meaning. She eventually had to resort to waving her hand in front of his eyes, which finally snapped him out of his trance. "What?" he asked, dully.
"I was asking you if you could show me where the towels are!" Shannon giggled. "I was thinking I should probably rinse off before I try out my new bed. I don't want to get it all sweaty!"
A brief flash of his new sister standing under flowing water popped into his mind, but Jacob shook away his fantasy and coughed, then replied, "Um, sure. Follow me, I guess." He immediately regretted not allowing or insisting that she go first, which would have put his eyes on a level with her glorious ass while they ascended the stairs, but it was too late. Although he still had some misgivings about her living with them, he supposed the silver lining was that he'd have more opportunities to ogle her in the future.