The Greenfield Family
Copyright© 2025 by icehead
Chapter 19: Crossing the Line
Incest Sex Story: Chapter 19: Crossing the Line - Unfaithful, inattentive parents in a failing marriage. Bickering siblings who can barely stand to be in the same room. A sister who jetted off to college and never calls. A long list of secrets and dark histories. These are the ingredients that make up the dysfunctional Greenfield family. But the oldest son's girlfriend has a plan to help repair this fractured family, by converting them to her own family's not-so-conventional lifestyle.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa mt/ft Ma/ft mt/Fa Fa/Fa ft/ft Fa/ft Blackmail Coercion Consensual Drunk/Drugged Rape Romantic Lesbian BiSexual Heterosexual Cheating Sharing Slut Wife Mother Son Brother Sister Father Daughter Cousins Uncle Niece Aunt Nephew BDSM Rough Gang Bang Group Sex Orgy Polygamy/Polyamory Swinging Anal Sex Cream Pie Double Penetration Exhibitionism First Facial Masturbation Oral Sex Sex Toys Tit-Fucking Voyeurism Nudism Slow
Paula awoke a while before she opened her eyes the next morning. Her mind was a bog of blurred senses and jumbled thoughts, and she spent a long time just wading in it, just existing, not thinking of anything.
When she did finally open her eyes, she caught glimpses of the morning light streaming in her window, but she didn’t see much else with the body that her face was buried in. She felt a pair of strong arms holding her, pressing her against a warm chest. She felt a steady heartbeat, and rhythmic breathing.
She lifted her eyes into Zander’s sleeping face. It took her a moment to remember why Zander was in her bed, holding her, but gradually it all started coming back to her. She remebered the party, the plan to seduce Lance, how she had let Heather go first. And then Justin. And her drink. And everything going fuzzy ... then just fragments. Incoherent images of Justin’s face, his arms carrying her, and ... something...
Oh, god, he raped me! He fucking raped me!
The moment that thought came to her, she pressed her head into Zander’s chest and squeezed her eyes shut. Angry tears trickled from the edges. Last night was supposed to be special. It was supposed to be her and Heather sharing this wonderful milestone in their lives with the guy they both really liked. And Justin had come in and robbed her of that! He fucking stole her virginity! The gift she was supposed to give Lance, and Justin stole it!
And Zander...
Zander had come to her rescue. Again. No, not again, but for real this time. Not just stepping in when Justin was bothering her, but coming in to save her when Justin had actually done something to hurt her. He had come in, gotten help for her, brought her home, cared for her, and he had stayed to keep her safe when she asked him to. Right now, lying here with his arms around her, pressed against his body, she felt safer than she could ever remember feeling before.
Paula lifted her head to look into her brother’s sleeping face. Zander. Her brother. Her twin. Her other half. She had let herself forget that for a long time, but it was true. They had come into this world together, only a few minutes apart, and they had been by each other’s sides all their lives. Yes, their lives had started taking them in different directions, and they had taken to teasing and annoying each other. They had called each other names, they had complained about each other to their parents, they had driven each other crazy.
But right now, all she felt when she looked at him was the deepest love she could imagine.
Well, that and his morning wood.
Zander grunted softly and started to stir. His eyes drifted open and saw her there in his arms. “Oh, hey,” he whispered.
“Hi.”
“I guess I stayed a little longer than I meant to.”
“I’m glad you did.”
He studied her carefully for a moment. “How are you doing?”
She could have given him a simple throwaway answer to that, but she felt like she almost meant it when she said, “I’m okay.”
He regarded her skeptically. “Really?”
“Really,” she insisted, in spite of the tears that were leaking from her eyes. She reached a hand up and tenderly stroked her brother’s face.
“Paula?”
“Zander ... thank you,” she said through a fresh wave of tears. “I’m so mean to you, but you’re always there when I need you.”
“Of course I am. Always.”
In that moment, a new kind of resolve settled into Paula’s mind. She knew right then what it was she really wanted.
Last night was supposed to be her perfect first time. She had been robbed of that. Now she wanted to take it back, to have her proper first time, with a boy she truly loved more than any other.
And right now, that boy wasn’t Lance.
Zander saw the change of expression on her face and furrowed his brow in a question. “Paula? Paula, what are you—”
There was no hesitation when Paula brought her head up and kissed her brother. She communicated with her lips and tongue on his mouth exactly what she wanted, with no words required. He resisted her only for a moment, and then he was pulling her into him and returning her kiss with every bit of passion he had in him.
Paula moaned as she writhed against his body, her hands crawling all over his back and grabbing at the fabric of his shirt. He similarly tugged at hers, bunching it up in his hands as he clutched her to him like he couldn’t get enough of her. She remembered that she wasn’t wearing anything under her baggy shirt, as that was all they had dressed her in after that shower Bobbi had given her, so when Zander pulled her shirt his hands found only bare ass underneath. A delightful thrill ran through Paula’s body as he squeezed it.
She rolled them over to seat herself on top of him, straddling his lap as she lay along his body and devoured his mouth. Pressing her crotch against the bulge in his shorts, she felt herself growing wetter, especially knowing that his shorts were all that was between them.
At least down there. It was time to remove what barriers stood between them above. She sat up and crossed her arms, ripping the shirt up over her head, leaving herself fully naked atop her brother.
Even as Zander held her by the ribs and started inching his hands up toward her breasts, he showed the first sign of hesitation. “Paula, what the hell are we doing? We shouldn’t—”
“Don’t,” she said, bringing his hands up to cup her breasts. “Don’t think. Don’t ask questions. Just fuck me.”
And when she leaned forward and kissed him again, any trace of resistance he had left died away.
She began tugging up on the hem of his shirt, exposing his bare torso a bit at a time. He sat up and raised his arms, allowing her to strip it off his head and toss it aside. Their arms engulfed each other, her hands scrabbling at the newly bare flesh of his back as she practically tried to swallow his tongue. His boxers were getting quite moist from the wetness she was spreading there as she ground against his very prominent bulge.
When he ducked his head down and captured her nipple in his mouth, she threw her head back and dug her fingers into his hair, trying to force more of her tit through his lips. “Ohhh, Zander...” she moaned, reveling in the feel of his tongue tracing circles over her nipple. Her back arched, and her crotch was now churning in circles on his lap.
Those boxer shorts that stood between her and Zander’s cock were becoming a real bother. They had to go. “Take your shorts off, Zander,” she breathed.
He wasted no time in complying. Paula climbed off his lap and let him lift his ass off the bed, sliding his shorts down off his legs with a little help from her. Her breath caught in her throat as she looked down at her brother’s stiff cock. She’d seen it before, yes, but only ever when it had been meant for Raven. She’d never looked at it this close up, and never with the intent of it being for her.
She was effectively moving on autopilot when her hand reached out and gasped his hard tool and began sliding up and down it. She’d spent weeks practicing on bananas or cucumbers or whatever else she could find that resembled the shape of a dick, all in preparation for that magical first time she was going to have with Lance. She was putting all that practice into effect now, and from the soft grunts Zander was making it seemed like she was doing something right. “Oh, that’s good Paula,” he groaned as she curled up alongside him, bringing her face closer to the cock she was jacking. His hand slid along her naked back and came to the curve of her ass, caressing and massaging her there, making her breath hitch.
She turned her head back to look up at him. “Just remember, I’ve never done this before,” she reminded him. And then she ducked her head, wrapping her lips around his shaft. She’d practiced in the past by sucking on a cucumber, trying to mimic the actions she saw while watching porn videos. She knew those were largely fake, but she hoped the principle of the technique was the same.
Judging by the way he was sucking in breath through his teeth and grunting out loud, it seemed like it was.
She twisted around to lay along his legs, so that she could look up into his face as she blew him. His mouth was hanging open and his teeth were all showing as he panted hard, which told her she was doing okay at least. He reached down to cup her head, running his fingers through her hair. That sign of appreciation itself was enough to turn her on further. She turned her hips to the side and lifted one knee, bringing a free hand down to rub herself as she continued sucking her brother’s stiff tool.
“Oh, jeez Paula, that’s so good! Oh my god, Paula!”
Every time he said her name it just made her even wetter. It didn’t take much longer before she was as hot as she could stand to get. She released his dick from her lips with a POP, and looked him straight in the eyes. “I’m ready,” she said.
Zander paused, his brow creasing with a sudden thought. “Wait, are you sure it’s ... what if he had...?”
Immediately Paula realized his concern. “Oh, Justin gets tested every couple weeks. He used to tell me that when we were dating, like he was trying to give me permission to sleep with him. He likes to be clean for his skanks.”
“And you’re...?”
“IUD. I’m safe.”
“Okay,” Zander nodded, reassured.
“So ... are we done talking?”
He cupped her face and brought her in for a slow burning kiss. He rolled them over, laying her down on her back, and settled himself between her legs. Her heart was pounding as she gazed up at him, watching as he slid the head of his cock along her pussy lips, finding her wet entrance. He notched it with her opening, and met her eyes in silent acknowledgement. This was it. The point of no return.
And with his first thrust, that final barrier into full incest was crossed.
“HhhhhuuuuuUUUUUUUHHHHH!” Paula gasped loudly, rolling her head back as she felt the massive intruder sliding into her body. The thought came to her that it was a mercy that she had been largely unconscious and unaware for what Justin had done to her, because this was the first experience of being penetrated that she wanted to remember. It felt amazing! She had never felt so full in her life. And then he started to withdraw, and thrust in again even deeper, which she hadn’t realized was possible. And then he did it again, and again; each time she thought he was as far in as he could go, he thrust again and went even farther. “Ohhhhhh, gawwwddd!”
At last, after what seemed an eternity, she felt his balls resting on her ass, and knew he really was all the way in. He held himself there for a long moment as their eyes met, and they both breathed heavily.
“You’re inside me, Zander!”
“Yes I am!”
“My brother is inside me!”
“I’m inside my sister!”
“We’re committing incest!”
“Yeah, we are. How do you feel about that?”
“I think ... I think I love it!” Tears leaked from the corners of her eyes, and she stroked Zander’s face. “And I love you!”
They took a moment more to let themselves bask in the overwhelming fact of their incestuous union. They kissed, sucking on each other’s tongues for several minutes. Then she started to move her hips, signaling for him to start doing the same. And he did, with a passion.
“Ahhhh ... ahhhhh ... aaaahhhh ... ohhhhh ... ohhhhhh!”
Paula could not believe in this moment she could have ever said a mean thing about her brother. She could not imagine why she had ever found him annoying, or saw him as a loser or a dork. Not when he could make her feel this good. Not when he gave her this much pleasure. Not when her body was this alive in his arms, this overwhelmed by the feeling of his cock moving inside her. She could feel the ridge of his little head moving along her inner walls, sending tingles all along her body. She knew it wouldn’t be long before he made her cum, and made her cum hard.
“Oooohhh! ... Aaaaahhhh! ... OHHHHH! ... AAAAAHHH!”
It was certainly possible that the mere fact that it was her brother giving her this wonderful experience was bringing her orgasm on faster than it otherwise would have come. But regardless, she soon was exploding underneath Zander, her pussy convulsing on his cock as she thrashed in his arms and screamed. He kissed her neck and jawline all through her orgasm, not letting up on his thrusting for a second. And he was still thrusting steadily away when she came down from it, quickly picking up her wave and guiding her along the path to a second.
It was as her first orgasm subsided that they both heard the sound of an erotic feminine moan that didn’t come from Paula. They both turned their heads toward the door, and standing just inside with the door shut behind her was Bobbi, watching them with a flushed face and a hand inside her pajama bottoms, which showed a clear bulge from her hand rubbing her clit.