This story is a related story to High School-Sleepover Orgy, but if you haven't read that, this will still be the best bi-erotic story you have ever read!
Sally was 17 years old. She was gorgeous and everyone knew it. She had shoulder length blonde hair and blue eyes. She had amazing firm tits and a perfect ass. She just came home from her long, fun night. Sally and about five other people had an orgy at her boyfriend's house. She had been fucked so many different times in so many different places, that she could not even remember. She had revealed to her boyfriend that she was bisexual, but also found out that he was too. It was an amazing night. But that was over.
Sally came home and decided that she needed to take a shower, to clean off all the cum. She was surprised to see no other cars in the driveway, as she was expecting her parents to be home. The lights were all off inside so she just went to her room. She stripped off her clothes and walked down the hallway to the bathroom.
Sally called her boyfriend Josh and told him to come over, since no one else was home. She left the door to the bathroom closed most of the way, in case her parents came home. She turned the water on and started washing herself. After a few minutes she heard a noise. Sally did not think it could be Josh already since he lived pretty far away. She heard the door to the bathroom creak and opened up the shower curtain to see who was there. "Josh, is that you?" No one answered. She quickly reached over and pulled the door open. As soon as the door opened, her little brother Kevin ran away from the door. "God damnit Kevin, you scared the shit out of me. Get back here!" Kevin came back to the open door but looked down at the ground while his older sister talked.
"What were you doing looking in on me while I was taking a shower?"
"I was just curious"
"Of what?"
"Well, everyone at school talks about you and says that you are so hot. They all say that they want to fuck you. I just wanted to get a look for myself."
"Well I am flattered, but you do not have to spy on me."
Kevin was a freshman in high school and had just turned 15 years old. He was not that strong yet, but he had been weightlifting with Sally's boyfriend Josh recently.
"Kevin, if you want to see for yourself, just look at me. I don't mind."
Kevin looked up at his sister and quickly realized what everyone else was talking about. Being her brother, he was kind of blind to her amazing good looks.
"Come with me, Kevin. I want to show you something."
Sally led her brother to her bedroom. "All of the other guys at school talk about how they want to fuck me, but they probably never will. Kevin, have you ever had sex before?"
"No."
"Do you want to."
"Yes, definitely."
"After tonight, you are going to be the only guy in your grade who actually has fucked me."
"Wait a second, sis. You and me? Isn't that wrong?"
"As brother and sister we would do anything for each other. Give help when needed, save each other when we are in trouble. So we might as well teach and pleasure each other too."
"Well, OK."
"Now are you ready to slide your cock into my tight pussy?"
"Hell yes!!"
Sally kicked the door shut and grabbed her little brother by the hand. She brought him over to the bed and he started undressing.
"The first part of sex is foreplay, but we are going to skip that today because I need to get my pussy filled."
She reached down and pulled his boxers to his ankles. Kevin had about a five inch cock, but it wasn't hard yet. Sally got down on her knees and took his cock into her mouth. She engulfed the whole thing right away, and slowly moved back keeping her mouth tight on his dick. She could feel it hardening in her mouth. Kevin started moaning while she bobbed her head up and down on his penis. She pulled off of his cock quickly.
"Please don't stop!"
"I think you are ready."
Sally stood up and laid down on her back on the bed. She spread her legs open wide so that he could get a real good view of her pussy. Kevin got up onto the bed and sat on his knees while he held his cock in his hand. He placed the tip of his cock at the entrance to her tight little hole and pushed in. The both let moans out simultaneously as his dick slid into her wet pussy. He pushed all the way in and she wrapped her long legs around him. His face was right in her big tits, and he took her left nipple into his mouth. He started slamming his hips back and forth as his cock slid in and out of hey pussy. They went at it like this for several minutes. He finally screamed, "I'm cumming, should I pull out?!" "No shove it deeper inside of me, I want to feel your boy cum inside of me!" With that he let it out, and shot several loads of cum deep into her pussy.
"Oh my God, you are so tight!"
"I can tell someone has been watching a lot of porn, you were really good for your first time!"
All of a sudden, another voice chimed in. "You are so horny that you just can't wait for me."
It was Josh, and they all laughed.
Kevin looked a little bit scared.
"Don't worry Kev, I'm not mad, I'm actually surprised that it took this long for you to discover your sister. Sally is the horniest girl I know, I am surprised that she didn't make you fuck her sooner!"
"So now what?" asked Kevin.
"Now," Josh said as he began undressing, "the fun is just about to begin."
"Well, I'll leave you too to your fun."
"Not so fast, Kevin. I know that you loved that, but unfortunately, you cannot just fuck your sister forever, you have to find another way to get pleasure. And the chances of finding a freshman girl who wants to have sex is slim to none. So, now you get to learn from me, what I did before I met your sister."
Josh was now fully undressed and he walked towards Kevin.
"Whoa, what are you doing? I'm not gay!"
"I never said you were, neither am I, I fuck your sister every day. All your guy friends talk about sex every day, right? But how many girls do you know that talk about sex?"
"None."
"Exactly. That's because guys are so much hornier than girls are. If you ask a girl to have sex at any time, she won't. But ask a guy, and he'll drop his drawers right then and there. I am going to teach you how to pleasure another guy, and then Kevin, you're sex life will always be satisfying. Go ahead and try it, and if by the end of tonight, you don't agree with me, no one will ever have to know." Kevin got down on his knees and grabbed Josh's 8-inch cock with both hands. He opened his moth really wide and took in as much cock as he could. Josh gave him tips as he went telling him to keep his teeth covered by his lips and to keep his mouth tight on the cock. Kevin started moving faster going back and forth on the shaft. He pulled off and lifted Josh's cock as he licked his balls. Under Josh's instruction, he started focusing on the head of the cock, swirling around with his tongue and pushing the tip of his tongue into Josh's slit. He started moving faster, licking the sides of the cock and then engulfing as much as he could. Josh grabbed Kevin's head and told him to get ready to swallow. Josh's knees buckled and he let out a groan as he let stream after stream of warm cum into Kevin's mouth. He swallowed as fast as he could but couldn't keep it all in his mouth. Sally jumped up and licked the excess cum of her little brother's chin, while her boyfriend's cock was still in his mouth. Josh fell back onto the bed and said "Wow, that was really good, how did you like the taste of cum?"
"It wasn't that bad, it was a bit salty, but I actually kind of liked it."
"See, now you know why I don't eat that much. Half my diet is Josh's cum," laughed Sally.
"I think mom and dad's food bill is gonna be going down! I want more!"
"I'm going to have to take a break. Why don't you fuck your sister again while I rest?
"Oh, my pussy is getting a bit sore, why don't you fuck my other hole?"
"You mean, your mouth?"
"No, I want you to fuck my ass. Josh will show you how to do that."
Josh came over to Sally and lubed up his fingers and her hole. He first inserted one and slowly moved it around in her ass, then he inserted another, and finally, a third finger. Okay Kev, your ready just get plenty of lube on your cock and go slow at first"
Sally put a few pillows underneath her stomach to raise her ass in the air. Kevin stood up on the bed and placed his lubed cock on her asshole. He spread her tight cheeks and slowly pushed in as Josh told him to. Sally let out a loud moan as her little brothers head popped into her hole. Kevin was amazed how tight she was as he slid his cock deep into her hole. He started sliding out and then back in as he picked up speed. He was enjoying it so much that he didn't even feel the hand on his ass cheek. But he did feel it when a cold finger was inserted into his asshole. He jumped and pulled out of his sister with the sudden sensation. He turned and saw that it was Josh and quickly shoved his cock back into his sister's tight hole. Sally was moaning faster and faster as her brother picked up pace. She was really loving the anal sex.
"See how much your sister loves anal sex?," asked Josh. Well, now you get to feel the same sensation, except that it feels even better for guys." "Wait, I thought anal sex hurts," Kevin said.
"No, anyone who tells you it hurts is doing it wrong. It only hurts if you don't use enough lube and if you don't loosen the ass enough."
Meanwhile, Kevin kept fucking his sister's tight hole and enjoyed every second of it. He felt her boyfriend's fingers pull out and then felt his large cock head pushing into his boy pussy.
"oh my god that feels so good!" Kevin exclaimed.
He felt Josh's thick cock fill up his hole as it pushed deeper and deeper in. It was the same feeling that he remembered whenever he took a good shit, except it was a million times better. He had heard people say that the ass was an exit only, but now he knew better.
"Congratulations Kevin, you are now one of the few guys who knows how good it feels to take it up the ass. Unfortunately, most guys won't do it because they think it's gay."
Kevin thought it felt good to stick his cock in his sister's ass, but it was even better to take her boyfriend's cock in his ass. Josh picked up speed and he slapped his hips into Kevin's ass over and over again. Kevin shoved his cock all the way into his sister's hole and let out a loud moan as he ejaculated his cum into her. When Sally felt her brother's cum stop shooting into her, she slowly pulled off to let the two guys have more fun. Kevin was absolutely loving the butt sex, as he continuously moaned in rhythm with Josh's cock movement. Sally knew that Josh could go on for a while, so she took her brother's cock into her mouth and started sucking off the leftover cum. She couldn't do much because they were moving so much, so she just backed off and watched as her boyfriend's cock continuously disappeared between her little brother's ass cheeks. Kevin was getting hard again and he started jerking off. He didn't know what it was then, but he could feel the intense, but glorious feeling of Josh's cock hitting his prostate. Kevin squeezed his ass muscles to make it even tighter for Josh, but he just kept slamming in equally as hard. Sally laid down on the bed and took her brother's cock into her mouth. She started sucking in the same motion that Kevin was moving. She didn't even have to move her mouth. Every time Josh shoved in, Kevin moved forward into his sister's mouth. Meanwhile, Josh was obviously loving every minute of it. Had fucked a lot of his friends before, but Kevin was definitely one of the tightest asses he had shoved his cock in. It reminded him of how tight Sally's ass was when he first started fucking her. He had loosened her up a lot, but they made up for it, by fucking a lot more. With his sister working on cock and her boyfriends sending him into complete ecstasy by fucking his ass, he was beginning to climax again. Just as he was about to cum, Sally pulled his cock out of her mouth and let her brother shoot his load all over her tits and stomach. She continued to jack him off to make sure he enjoyed every second of his orgasm. Because of all the fucking experience he had, it took Josh a lot more to cum. Kevin could feel Josh's cock throbbing inside of him as he jerked it in and out of his tight hole. Finally, Josh slammed his cock all the way into and shot a giant load of cum deep into Kevin's rectum. They collapsed onto the bed in harmony, and Josh's cock slid out of Kevin's ass as it got smaller.
"Good God, that was the most amazing sensation I have ever felt!!" Kevin yelled. Will you help me convince my best friend to have sex?"
"Believe me, Kev, all you need is right between your legs! But I suppose I can help you with your first. The night is young, and I could fuck forever. You have is phone number handy?"
**To be continued, if you like. Email me at nifty1@gmail.com with comments/questions.