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At a party. (Sweetnothings and Okabe)

Haven’s rough hips movement had its effects. Alex felt like her vagian was trying to suck his whole seed deep inside her. That made him only more willing to do that. Hearing her cry, he wanted to give her even more pleasure. He kept up the rhythm and even tried to go even further inside her, withholding his own orgasm. He was now looking more like a savage beast indulging his lowest instincts than the calm brother he usually was. Sweat was dripping off his body.
 
Haven moaned loudly like a bitch in heat. All the pent up sexual tension she felt for her brother was killing her. She wrapped her legs around him, pulling him closer to her. She wanted to feel more of her brother deep inside of her. She wanted to feel his seed deep inside her womb. She panted, her eyes glazed over with the lust she felt for Alex. She felt her orgasm building up quickly in her lower abdomen. She arched her body and screamed out Alex's name as she came around her brother's shaft.
 
To see his sister acting like an animal only reinforced his will to deposit another load deep inside her. She would become his bitch once marked by his semen. His thrusting became slower, but went all the way inside Haven. Then Matt started yelling like a madman , and he started ejaculating a second time inside his sister’s tight hole while she was screaming his name. There was even more semen that the first time, Haven was completely filled, as the surplus sperm went to soak the sheets. It was as her orgasming vaginal walls were milking him of all his cum. As his dick was almost finished throbbing and exploding cum, he bite her neck, as a way to tell her she was his. He only stopped coming when his balls were almost empty. But the situation was so exciting he knew he should be ready to go again in a short time if that was needed.
«You are mine» He declared while still balls deep inside Haven. « I love you»
 
Haven ran her hands down his back as she came. It was sweet bliss. He felt so good inside of her pussy. She wanted more of him. She wanted to be his. She panted and moaned when he started cumming in her. It was a lot, and she was pretty sure she'd end up getting pregnant, but it would be worth it. She didn't mind getting knocked up. She felt back onto the bed and closed her eyes, exhausted from the fucking. She gasped when he bit her neck. It scared her, and it hurt. She'd have to ask why he did that. Before she could open her mouth, he answered her question. She smiled and kissed him deeply. "I'm yours, and no one else's. I love you, too."
 
Once they had finished fucking, Alex spend some time hugging his sister, while still being inside her. He also loved admiring his sister’s deep blue eyes while being on top of her. He still had trouble believing what happened, but was very happy. After some minutes of just caresses and hugs, he pulled out and went to sit next to Haven. Lots of questions needed to be answered

«So what do we do next ? Are we a couple ?» They fucked without any prior talking and so he did not know what his sister was thinking about these issues. He however did not even want to think that it could be a one-time thing «Also, as we are alone tonight anyway, do we sleep in my bed or yours ?»
 
Haven closed her eyes briefly as she caught her breath. She felt him hugging her and just caressing her. She opened her eyes and looked down at him. She smiled and nuzzled him softly. She just liked being in his arms. She looked at him as he pulled out and laid beside in bed. She laid on her side and faced towards him.

She thought about his question and nodded slowly. "Yeah. We're a couple." She answered. She rubbed the spot on her neck where he bit her. She was sure that'd be a bruise later. "I want to sleep in your bed." She said, sitting up to look at him.
 
«Alright then.» He said that with a bright smile thinking of all the times she told him that his girlfriend would have a lot of trouble dealing with him. Right now he was more happy to fave found himself a perfect girlfriend that afraid of having to deal with all the complications there will be. He put her in his arms and started to walk towards his room. It was a great feeling for him to carry his naked sister, dripping his cum on the floor, straight into his bed.
«Sorry for the bite, I just really was caught in the moment.» He said as he deposed her on his bed and put the sheets on them. «You can give me one if you want, we’ll be even»
 
Haven started remembering all the times they were together. Did she have feelings for him when they were young? She remembered when she would always depend on him when she got hurt, running to her brother instead of her parents. She smiled and looked up at him as he carried her to his room. She gripped him and smiled, nuzzling him softly. She laid down and shook her head. "It's all right. I like being marked." She said, kissing his cheek. "Plus, you came in me. I owe you the favor of at least having your child." She whispered, rubbing his cheek.
 
«Wait what ?» He was stunned by what his sister said. Yes he did here bareback, but he did not think it would have consequences. He had the reaction of all men his age and started to panic. But then he saw his sister cute and happy face and his worries disappeared. His sister was his girlfriend, he could be a young father that would not be shocking. He hugged her, put her head on his torso and started fondling her hair.
«You seriously think you can become pregnant ? I don’t now what to think.» He smiled and kissed her. « But if we stay together, I don’t mind having a child with you. But do you realise we’ll have to flee ? I don’t want you to say you got knocked up by some guy. If you have a child by me, I want to be his father, and you to be his mother.» He laughed and tried to joke « See ? I’m already a possessive boyfriend.»
 
She looked up at him when he questioned it. She didn't want him to be one of those guys who get a girl pregnant and not be there. She knew her brother, however, and knew he would never leave her. She was his girlfriend. She smiled softly when he seemed to relax and begin playing with her hair. She listened to him and nodded. "Yeah. I am young and extremely fertile." She joked. She kissed him back and continued listening. She blushed softly and looked up at him. "We can move to anywhere we want. New York, Georgia, Florida. Even Europe." She whispered, a little happy he considered moving away from their parents. "You are a little possessive, but I like you possessive." She smiled and kissed him deeply.
 
Alex sure could never abandon his pregnant little sister. Still it felt weird to have her naked in his arms. Weird, but great. He loved her so much he himself was surprised.
«Would you rather move to another state or to Europe ? I don’t mind, next year I’ll be finished with my studies and I will be able to find a job elsewhere. But you need to finish yours. Or maybe do you want to be my submissive stay at home wife ?» He said clearly showing it was meant as a joke, but leaving the option open.
«And don’t worry, if you get pregnant we’ll be awesome parents. Still should I keep on cumming inside your young and fertile body ? You’ll have a lot of trouble preventing me from doing that.»
It was funny to see his sister that was usually independant now being a gentle and submissive girlfriend. Still he knew that he too would do anything for her, and would love to be hers as she was his.
 
Haven loved her older brother. She wanted to have a family with him even if it was illegal. They could always move, but she didn't know where. She shrugged and took his hand. "I don't know. Staying home and being your wife does sound interesting, though." She smiled and shifted. "Yes you may. I would love it if you always came inside my body." She whispered, kissing his shoulder softly. She would do anything for him. She was his now, as he had marked her.
 
«That was a joke I guess. you need to finish studying.» Anyway he knew it did not matter much as that was only daydreaming. Still once they both would be ready he would love to go elsewhere to be able to live with his woman.
«Don’t be worried, I won’t miss a chance to mark you with my cum. You need to give me strong children.» He kissed her belly and put a finger in her cum-filled vagina. «It’s only the beginning.»
Alex was starting to feel tired. It had been harsh times for him, but now he felt that good times were ahead. For the time being he only wanted to enjoy his first night with Haven as his girlfriend, cuddling with her in their bed. Still fondling her hair and caressing her body, he closed his eyes and thought about all the great feelings he had tonight.
 
She sighed and nodded. "Okay. Then we're going somewhere else." She said. She wanted to have his children, but not around their parents. She nuzzled him and smiled softly. "I want to have strong children. Your strong children." She whispered. She blushed deeply when he kissed her belly and moaned softly when he put his finger into her slit. She laid down next to him and closed her eyes, quickly falling asleep. She couldn't wait in the morning to use the pregnancy tests she had bought a few weeks earlier. She wanted to be pregnant with his babies.
 
Alex felt so manly when he heard the «Your strong children» part. God she was perfect. He would make sure to make enough money so he could live his dream life with Haven. He too quickly fell asleep, his sister against him.
He woke up early in the morning. There was a lot of work to be done. Alex washed her sister’s sheets and removed the cum stains that were on the ground. He thought that their relationship had to stay secret. For the moment at least. Then at 7 a.m., the hour his sister usually woke up, he jumped on the bed, kissed his girlfriend and whispered in her ear.
«Come on it’s time to get up Haven.» He was not really happy to tell her this, as he only wanted to cuddle next to her in the bed for the whole day. Then maybe to fuck her once or twice.
 
Haven slept throughout the night without any incidents. She remembered in the morning when she woke up to go take the test. She didn't hear her brother moving around while she slept. She groaned softly when Alex woke her up. She opened her eyes slowly and smiled tiredly. "Good morning, Alex." She whispered, sitting up to stretch. "I'll be right back." She said. She stood up and walked to the bathroom. She opened the cabinet and pull out a pregnancy test. She did the procedures and let it set on the counter for three minutes. She bit her lip and waited for the results.
 
Alex was surprised to see that the first thing she woudl do is lock herself in the bathroom. But she was a girl, so she must have a lot of secret things to do in the bathroom, and he did not mind. Instead he went in the kitchen to prepare a breakfast for both of them. Some bacon and eggs would be perfect. He wondered how life would be wehn their parents would be around here. They would have to fake still being two siblings who never talk together and almost don’t like each other when in public, while being a loving couple in private. That idealised version sounded great.
 
Haven sat on the counter with the test in her hand. She kept looking at the clock. Five, four, three, two, one! She thought to herself. She looked at it. Blue. It meant she was pregnant. She squealed and got up. She unlocked the door and ran out. "Alex! I'm pregnant!" She yelled out, running down the steps naked. She jumped on his back and showed him the test. "Look!"
 
Alex was worried when he heard his siter running out. He couldn’t believe what she was saying. Could she already be pregnant, only a few hours after they had sex ?
«Wait !» He said, don’t knowing what to say to the news. « What we you..I mean we, will do ?» He was irritated, it was too soon for problems. He only wanted to spend carefree days with his beautiful sister. «It’s too early for that yet. You are too young.» Then he realised how horrible were the things he said. He would never want to hurt the woman he loved. «Still I’m happy. Maybe it was fate after all. You were meant to bear my child. I'm sure you'll be the prettiest pregnant woman ever» The infatuation caused by the first night was still not over, and he still was a dreamer.
 
Haven smiled at her brother and kissed his cheek repeatedly. She was so happy to finally have his child. She looked at him to see his reaction. She jumped off his back and smiled softly. "What do you mean what will we do? We talked about it yesterday." Her smile slowly faded. "B-but you said..." She felt really hurt he had reacted this way. She frowned and turned to the trash, throwing it away. She looked at him and smiled softly. "You think so?" She asked softly, wrapping her arms around him. She was happy she was pregnant. It'd be hard to explain it to her parents who was the dad however.
 
«Of course you’ll be.» He said while holding her in his arms too. Still, even if he tried to appear relaxed he was worried. But as long as Haven would support him it would be fine, he was sure of that. «What shall we say to Mom and Dad ?» Matt really did not knew what would happen, if their parents would support them or not. His mind started to wander away from serious matters as he could look to his sister’s back and ass during the hug.
 
Haven smiled softly, looking up at him. She kissed his cheek and laid her head against his chest. She started to think of scenarios they could tell their parents. She sighed softly and shrugged. "What should we tell them? Should we tell them about us?" She asked. She didn't know if they would yell at them or support them. All she saw was the anger focused on her for getting pregnant. She ran her fingers over his torso and arms.
 
«Well there’s two solution. We tell them the truth right away or we lie. Anyway as soon as possible we leave for a place where I can love you and be a father to our children. I’d say that we should tell them, as in some months I’ll be ready to leave and I can take you with me, if you’re ready to build another life somewhere else. They’ll take time to notice your pregnancy anyway, and by that moment we’ll almost be ready to leave.»
After talking that much he stopped, knelt and started to kiss Haven’s belly. He was still uncomfortable about the whole situation, but it was a great thing to know his child was now growing here. After a moment of hugging his pregnant sister’s belly, he rose while a sad smile on his face.
«I don’t want to let you go to school today. I don’t know how much we’ll need to wait before spending some time together again.» Of course he wanted to keep her close to him, even if their parents were in the house too, but he couldn’t decide so without Haven’s agreement. And he also wanted her right now. Spending a day without his loved one would be a torture, he thought, completely infatuated.
 
Haven listened closely to the options Alex gave them. She debated mentally whether to lie to her parents or wait to tell them once she started showing. She could say she was gaining weight which was partially true, but she wanted them to know it was Alex's. She looked at him when he stated which option he preferred. She would do anything that he felt that it was right. "I'm fine telling them. Where do you plan to go?" She asked before Alex knelt down in front of her. She blushed deeply and rested her hands on the side of his head. She could imagine being swollen with his child, and it turned her on a little. Haven could tell Alex was still uneasy with this. "It'll get better. I promise." She reassured him. She wrapped her arms around him and tilted her head when he told her he didn't want her to go to school today. "Sure. I can say I was sick tomorrow." She stood on her toes as she kissed him softly. "Anything for you." She whispered against his lips.
 
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