I want to thank bgmisfun for helping me polish the story and finding errors and mistakes I missed. All characters in the story are eighteen or older. Thanks for all the feedback and suggestions I got on the board and in the comments field. You've made the story a lot better.
This story contains incest.
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"It's only fucking pot, dad. You're so fucking unfair!" Sarah screamed and with the door open he could finally hear the words.
Mark woke up from the screaming downstairs and he immediately knew what it was. He looked over at the clock and could see it was well past her curfew and she was most likely drunk, too. Mark waited for it to calm down so he could go back to sleep again, but it seemed worse than usual.
"Only pot? If you're not careful, you're going to end up in the gutters. Why can't you be more like your brother? More responsible!" their father screamed back at her.
"Twenty-one, a virgin and still living at home with his parents. No, thanks, dad, I would rather live my life in the real world than in front of the computer!" Sarah screamed back at him and Mark wished he hadn't heard it. He was already felt pathetic for his lack of experience and hearing his sister give voice to what he already felt only made it worse.
Mark was everything his sister wasn't. A good student; he didn't go out partying and yes, he was still a virgin. He had thought things would've changed when he started studying at the local college, but it hadn't and he still felt as awkward around women as he had in high school. His sister Sarah was eighteen and all she had to do to get laid was to wiggle her butt and all the guys would come running. She had probably already slept with more people than he would in his whole lifetime and it was killing him. With her long blonde hair, firm butt and perfect perky tits she was every man's dream.
Of course their parents saw him as the successful one, with good grades and well on his way to get a degree in computer science. It wasn't like Sarah was going to fail to graduate; she only had three months left of her senior year and had done okay so far. On the other hand she had been even more antisocial than normal lately, and he couldn't remember the last time he had a conversation that lasted more than a few words with her.
They continued screaming at each other and even his mother got involved until he could finally hear Sarah make her way up the stairs and slam the door behind her. Tomorrow morning was going to be tense and Mark didn't look forward to it. He wished he had a friend he could call and hang out with tomorrow, instead of being stuck in the house. Playing video games, watching porn and studying was his life was and he hated it. It wasn't fair.
The tension in the morning was even worse than Mark had feared the day before and he understood why when he heard about the punishment. Sarah was grounded for the rest of the semester and she wouldn't be allowed to go to the senior prom. They were going to drop her off at school and pick her up after her last class. She wasn't allowed to meet any of her friends after school until she graduated. Sarah didn't say a word to their parents during the whole day and only a few words the next few days. She didn't say much to Mark either until a week later when she entered his room.
"Hey, Mark," Sarah said and he knew she wanted something from him. It wasn't hard to figure out since those were the only times she really talked to him.
"What do you want?" Mark asked, curious about what she would ask for this time.
Of course there was always the chance that she was lonely and wanted someone to hang out with, but Mark didn't think so. She looked pretty nervous as she walked into the room and he didn't know why. She usually always got what she wanted and even he had problems saying no to her. It was something about her blue eyes and she was still his baby sister and he loved her despite all her flaws.
"Why do you think I want something? Maybe I just want to hang out with my big brother," Sarah said and sat down on the bed as the only chair in the room was the one Mark sat on.
Mark could see her tanned legs dangling a back and forth. She didn't work out, but it was impossible to tell. Her eyes were long and thin and he caught himself staring at them. Sarah was pretty and she knew she was and always used it to her advantage.
She and his mom were the only girls who entered his room and once more he became aware just how much he wanted to have sex. Just do with any girl so he could get it over with. For a second he wondered how she would react if he pushed her down on the bed and removed her clothes. She didn't say anything and neither did Mark until he the silence started to kill him.
"Do you want to play some video games?" Mark asked even though he knew how little interest she had in video games, but it was all he came up with.
The annoyed look on Sarah's face made him regret even asking the question. Why was it always so difficult with her? They had gotten along fine until she started high school, and then not so much. A part of him suspected it was because didn't want people to know he was her brother. He wondered if she still was ashamed of him. He could see how Sarah took a couple of deep breaths. She had a determined look on her face and he was finally going to find out what she wanted. At least this time she had tried to do some small talk before spilling it out.
"Look, Mark, I'm going to be honest, but first you have to promise not to tell our parents. Pinky swear," Sarah said, sounding very serious.
Again he wondered what she was about to ask. He had never told on her before, so he didn't really understood what she was worried he would tell this time. It also made him more curious and he moved over to the bed and stuck out his pinky finger which she quickly intertwined with hers.
"I promise I won't tell," Mark said and he saw how Sarah immediately felt more relaxed.
"I won't talk with you ever again if you tell...Okay...Here's the thing; you know why I got grounded, right?" Sarah began and she didn't continue until Mark nodded. "I've been feeling really bad this week and I'm lonely and I can't talk to any of my friends since mom and dad got my phone. I'm going crazy, Mark, and... I just really need a joint. Just one to relax my nerves," Sarah said, begging him.
"No way, Sarah, there's no fucking way. There's no way I'm going to help you get drugs," Mark angrily answered and he started to feel worried about her. She must really be desperate if she wanted him to get drugs for her.
"Come on please, Mark," she begged him and looked at him with her big blue eyes that were so hard to turn down.
"I can't do that, I'm worried for you. What if you're an addict?" Mark voiced his concerns and he saw Sarah's trying to think up a plan. It was clear that she wasn't about to give up.
"First I'm not an addict, I just like to smoke some pot and since I'm stuck here with nothing to do I deserve some fun. Why do you always have to be... never mind. What if I could get you laid? I know how desperate you must be, spending all these lonely nights wanking in front of the computer watching porn. If you help me out, I can set you up with one of my sluttiest friends..." Sarah said and Mark felt tempted by her proposal.