~Thanks to Antartica77 for the feedback, and thanks to everyone here and on Discord for all of your support and patience. This is the start of the next leg of Sara's story, and I hope you all enjoy the ride!~
Sara tackles Adam onto the bed, both of them completely naked. She pins his wrist to the bed and they're suddenly shackled there. Adam lies there helpless and hard while Sara gyrates on his throbbing member. She leans in to kiss him, pressing her breasts into his chest while raising her ass in the air. There's a loud slap and they both turn behind them to see Lucas standing behind Sara, already naked and stroking his monstrous cock. He lines it up with Sara's entrance and she moans lustily as he fills her up slowly.
Adam watches powerlessly straining against his bindings as the two rut above him. Sara's shrill cries of pleasure grow louder as the thrusting becomes more intense, the sound of clapping growing with each stroke of Lucas's cock. He's grabbing her hips possessively, pulling her back on his rod, face split in a triumphant grin as Sara screams and begs him for more. Her face is a mask of manic lust as she stares down into Adam's own, confused expression. The hurt she sees there, paired with his own lust, as she forces him to watch the lurid spectacle up close. She looks down at his twitching cock, and smiles at the steady stream of precum she sees leaking there. Sara kisses Adam fiercely, forcing her tongue into his mouth and moaning into his lips as Lucas pummels her womb into submission. She breaks the kiss and laughs, a cruel giggle that sends a visible shiver through them both.
"That's right baby," she taunts him, her voice a husky rasp. "Cum for me! Cum while Lucas breeds me properly! Cum while your girlfriend gets knocked up in front of you!"
Adam groans, barely managing to hold off his impending climax, and Sara throws her head back and crows with excitement. Lucas's hands tighten on her hips, fingers digging into her soft flesh as he increases his pace. The loud slapping of flesh on flesh fills the room, drowning out everything from outside. Sweat drips off his body and lands on Sara's back even as her own drips onto Adam. The nectar from between her legs drizzles down onto Adam's cock, and he has to bite his tongue to keep the sudden sensation from making him cum. His eyes widen with horror and arousal as Lucas's thrusts become more brutal and animalistic, Sara's eyes rolling back in her head as he pushes her over the edge. He's going to cum, and Adam can't do anything to stop it. He stares into Sara's eyes, but there is nothing there but blissed out lust. He tries to say something, but the words freeze as Sara's cries reach a new pitch.
"He's gonna get me pregnant, baby! And it'll be all...your...fault!" She looked down at him, a confident smirk on her face even as it contorts once more with agonized ecstasy. "You'll take responsibility won't you? You'll be a good daddy for my baby? Ohhh fuck! Here he comes, Adam! Your roommate is going to knock me up right in front of you! Ffffffuckkk!"
Sara screams out with another orgasm as Lucas floods her womb with his seed. With each thrust she can feel the hot cum shooting inside her, racing to fertilize her unprotected eggs. With a cry of despair, Adam's own cock fires off, his load painting the outside of Sara's belly even as Lucas's delves deep into it. The image of his own cum being wasted while another man's fulfills its intended purpose in his girlfriend isn't lost on any of them, and the two lovers stare down at Adam with satisfied, sadistic smiles on their faces.
"I knew you'd like that, baby..."
Adam jolted awake in a cold sweat. His whole body was shivering and not just from the physical chill. The dream had been so vivid, so real, that he'd been certain that it was really happening. Part of him still doubted that it had been just a dream and not some terrible memory. What was worse, the feeling between his legs told him that the orgasm he'd felt in the dream had been very real. When was the last time that he'd had a wet dream? Much less one that actually made him cum? What the hell was wrong with him? This couldn't be normal.
As he wallowed in the darkness of his room, his own cum drying against his skin, Adam heard the sound of the apartment door opening, and then someone locking it. Heavy footsteps moved through the apartment; the slow, quiet thumping he'd come to associate with Lucas's walking about. A moment later, the door across the hall from Adam's opened and closed with a click and the apartment returned to silence. It seemed Lucas was back from Sara's apartment.
Adam checked the time on his phone, finding it to be just after eight in the morning. Lucas had been gone all night. But even as that thought crystallized in his mind, Adam noticed a message he'd received from Lucas not long ago, likely just before the big guy had left Sara's apartment. With trembling fingers, he opened the message and gasped at the image on the screen.
Sara was sprawled out on her bed, completely naked, her covers tossed aside and sheets a tangled mess around her. Her hair was disheveled, spreading out around her head in a messy halo, but her face was an image of satisfied, blissful sleep. There was still a hint of redness in her cheeks, giving the impression that they had been flushed with exertion just moments ago. But what truly consumed Adam's attention was the cum. Sara's face, tits, and stomach were painted with what appeared to be a fresh load, and Adam could make out the spots on her body where earlier loads had dried. Still more coated her inner thighs, and appeared to be oozing out of her swollen, glistening pussy lips. Stains covered the sheets, a particularly large one under her ass, no doubt the result of continuous orgasms on Lucas's monster cock.
Adam's heart ached looking at the image, and for a moment he couldn't breathe. His chest felt like there was an anvil sitting on it, and the shaking of his hands was so bad he nearly dropped his phone on the floor. And yet, he couldn't stop staring at the image in his hands, and was once again struck by how beautiful Sara looked like this. Before he knew what he was doing, he'd wrapped his hand around his stiffening cock, and began stroking himself slowly. He devoured the image with his eyes, taking in every detail as he worked himself closer and closer to another orgasm.
'This is so wrong...' he thought to himself, even as his strokes increased in speed, his hand practically a blur on his shaft. 'This is so fucked. What the fuck...what the fuck..."
And as Adam stared at the image of Sara, covered and filled with another man's cum, Adam remembered his dream. Remembered the image of his wasted load on her stomach as Lucas filled her womb. Of Sara taunting him with a threat of pregnancy. No, not a threat. A promise. A promise to carry another man's baby and make him raise it. Adam's entire body started shaking, his orgasm no longer under his control. He cried out into the darkness as he came again, coating his own chest and stomach with yet another wasted load. But even as he stared at it, his eye was drawn once more to Sara's picture, and the sheer difference in the size of Lucas's and his own loads was highlighted starkly for him.
Adam fell back on his bed, one arm covering his eyes as he struggled to catch his breath. What the fuck was wrong with him. Why did he like this so much? What was it that he really wanted here? What did this all mean? And why did the idea of Lucas stealing Sara like this make him hornier than he ever thought he could be? What was he going to do?
~~~
Sara stumbled out of the elevator Sunday evening, still feeling a little weak from her ordeal. The emergency contraceptive she'd taken after letting Lucas fill her up over and over again Friday night had wiped her out. Cramps, nausea, and a massive headache had been her companions throughout the entire weekend, and she'd only been able to fall asleep Sunday morning after she'd literally passed out from exhaustion. Sleeping on the bathroom floor wasn't exactly pleasant, and she'd silently resolved to never take one of those pills again upon awaking. She would just have to be more careful going forward. Or be ready to risk the consequences.
Now, two hours later, freshly washed and fed, Sara was finally making her way to Adam and Lucas's apartment. She knew that she was going there to talk with Adam and make sure that everything was still ok between them. He hadn't responded to the message she'd sent yesterday about feeling sick, and the fact that he hadn't even read it yet had her very worried. Even still, some part of her was eager to be around Lucas again. As she walked down the hallway, she felt her pulse start to quicken and her body react despite her exhaustion. With each step closer to the door, she felt her arousal building, her nipples hardening as they rubbed against her bra and her pussy lips moistening even as her mouth went dry. By the time she reached the door, she had to fight to control her breathing and her entire body was shaking with anticipation. She was suddenly painfully aware of how revealing her dress was and how easy it would be for Lucas to fuck her without even stripping her out of it.
Sara rested her head against the cool door, her hands absently fishing the key Lucas had left with her out of her purse. She wasn't sure when he'd had the copy made, but she still remembered the way her breath had caught in her throat when he handed it to her "just in case". Her heart started pounding once again as she stared at the key, the message as clear now as it had been in that moment. She took a steadying breath and shook her head in an attempt to clear it. But she couldn't deny the heat that was still building in her loins as she stood outside their apartment.
Another deep breath and several seconds later, Sara was able to focus. She wasn't here for sex. She wasn't here for Lucas. She was here to check in with Adam and make sure that everything was ok. Some awful things had been said Friday night in the heat of the moment, and even though Adam had gone along with it, she didn't want him to be hurt by them. Even if there had been a kernel of truth in her treacherous words that had thrilled her.