All characters in sexual situations are 18 or older. Thanks for reading!
The grunting, moaning, and slapping echoed off the walls of Vel's chambers in the viscount's castle. Naevia was grateful for the thick walls built to keep out the desert's heat. Did Naevia sound like such a wild animal when she and Vel rutted? She didn't think so, but she so lost herself in her pleasures with him that she couldn't be sure. She guessed that Dellia might sound very much like this in the throes of pitched battle. Grunts, squeals, and curses came out of their cousin's mouth as Vel took her from behind.
"You've ... aaahhhhhh ... fucking ... broken me ... Cousin. Stop ... and I promise ... I will forget it." Dellia tried to look back at him over her bare, tensing shoulder. Her eyelids fluttered as he hit some deep place inside her that Spurrius had neglected with his smaller tool. "Just pull ... gods damn ... out." The heat that spread from Vel's cock deep in her belly and from his hands on her hips fogged her brain and sapped her of her agency.
"Naevia?" Vel was trying not to enjoy himself too much in front of his sister. But punishing Dellia for her treachery by possessing her from the inside out was a high he had not yet known. "What should I ... uh, uh, uh ... do?"
"She's asking you to pull out of her. She's not making you." Naevia bit her lip. This really was the only way. Right? Maybe the curse was a gift. Dellia would have hurt them otherwise. And she would have hurt their father. "That means it's working. Keep going. Don't stop, no matter what she says. We can't let her go until she swears her allegiance to the Tullius clan."
"How ... ugh ... about it?" Vel's hips slammed into his cousin's tight butt. He moved as if he was an automaton. "Will you ... swear to ... help me ... and ... uh ... uh ... uh ... my sister ... and ... my father?"
"N ... n ... never," Dellia said as she dropped her head to look back at the floor. She tried to focus her gaze on the iron ring on her left hand. She knew a nerve ran from her fourth finger directly to her heart. That was the power of a wedding ring. But her cousin's cock had somehow attenuated that nerve. Vel's power and the pleasure he coaxed out of her were attempting to usurp everything that mattered to Dellia. "I am ... oooohhhhhh ... loyal to the crown ... and to my father. Agh ... agh ... aggghhhhhhhhhh." She bucked her hips back at him and let out a series of low grunts. She was at the mercy of another climax. There was no mention of her loyalty to her husband.
Naevia sat herself on the edge of the bed and watched. Her pretty, unlined face twisted in awe. Did she actually enjoy seeing this traitor treated thusly? Would she enjoy it even if Dellia had not tried to betray them? She worked hard to keep her hand from going under her stola. After a while, she could see some clarity return to Dellia's eyes, and the woman's back flexed in such a way that it looked like she was working herself up for action. Vel needed to do more. "You must take her harder, Vel."
"I'm ... getting ... tired." He was indeed sucking in air as if he'd just run a race. But also, he couldn't hold back the flood much longer. Thinking about sports was not working in the least. Not when he could look at the impact ripples on Dellia's tight butt. To make matters worse, his mind kept returning to the idea that he had to vanquish the treachery inside her. And the battle for that conquest, waged inside her pussy, excited his mind into a frenzy he could not easily quell. "And I think ... I'm going to ..."
"Oh ... oh, my." Naevia rubbed her legs together. "Well, you cannot stop. Or pull out." She watched her cousin.
Apparently Vel's words had further sobered Dellia. She looked over at Naevia with a dark look, but said nothing.
Naevia nodded to herself. "First, you need to regain some control, Vel. Grab her hair. No, at the top. Yes, like that. Now, pull her head up and back so that she's forced to arch her back." The man Naevia had once lain with had done this to her. At the time, she'd thought it was pure magic. But now she knew that the tricks in the hands of that man were just parlor games. But in Vel's hands, she could only imagine what this would do to Dellia. "Good, now really drive it into her." Naevia's eyes went wide at the sight of it. He was so long, and pulled back so far with each thrust. Power seemed to flow from Vel in waves.
"Aaaaaaagggggghhhhhhhh." Dellia orgasmed again. She could feel Vel striking to her very center. With her back curved, she could feel him poking at the front of her belly. Did his penis want to find another way out? He was driving her crazy. His words about his impending orgasm floated out of her mind.
"Going to ... do it ..." Vel looked over at his sister with longing and guilt. He did not want to plant a baby in his cousin, and he certainly didn't want to do it while the love of his life looked on. He raised his eyebrows in an unsaid question.
Naevia understood him well. "You'll just have to put it all inside her. I didn't tell you, but when you did it in me, I never felt closer to you. It bonded us. It made us as one. She will feel the same thing. I know it."
"Naevia ... here ... goes ..." Vel felt like his balls might be glowing. He'd never tried so hard to hold back and he knew a monster eruption was moments away. He tightened his grip on Dellia's brown hair, and her narrow hip.
"Wait ... wait ... Spurrius ... ugh ... ugh ... fuck! ... ugh ... ugh ... the Bellius ... line." She was stronger than her tall, gangly cousin. But she lacked the fortitude to break away. For the first time in her life, she found something she could not fight: her own pleasure. She heard a growl that she would not have suspected from her nineteen-year-old cousin, and then fire filled her from the inside. Dellia howled and fireworks danced before her eyes. He filled her. The young, upstart duke planted his seed. In that moment, she wanted nothing more than to provide a fertile furrow for him. As he pushed her over a cascade of ecstasy, she almost prayed to Venus for a successful joining.
Amazed, Naevia watched them. Dellia writhed, grunted, and hissed as she pushed back. Her head still upright with the force of Vel's grip. Her brother's whole body jerked spasmodically, his face contorted, and his eyes shut tight. She knew they had just pushed Dellia over her Rubicon. It seemed that the cousins climaxed together for minutes. Eventually, Vel released his grip on her, and sat back on the floor. His long cock slid out of her with a wet plop and flopped up to his belly, leaving a smear of their combined cum above his navel. Naevia rushed over to him, dropped to her knees, and flung her arms around him. "How do you feel?" She was happily surprised when he turned his head and kissed her.
His arms went weakly around her shoulders and he broke the kiss, panting. "I ... feel ..." He held her at arm's length, looking into her deep, green eyes. "Are you angry?"
"How could I be? I told you to do it. I put you inside her." Naevia had been blindsided by everything on that trip. There was a relic tower that they had somehow nudged out of its slumber in that very city, and it was not even close to her strangest experience. "Did she feel good?" Naevia persisted.
"I thought I ... knew you. I thought you were ... innocent ... teenagers," Dellia panted. Now lying face down on the floor, Dellia's chest pressed at the cold tile with each rasping breath. Her nipples hard and rebellious at the almost painful sensation. "But you are ... some sort of abomination ... before the gods. How can a brother and sister ...?" With some difficulty, she propped herself up on an elbow and looked back at them. She knew if they cared to look, she was giving them a show, but she didn't have the energy to close her legs at the moment. "And you've soiled me ... with your filth. You better pray --"