It was the middle of the night when Rachel woke up hearing whispering. She shared the room with her younger sister Aliana. Being already 18 years old, she was usually very respectful. It was not like her to be talking on the phone with someone this late at night.
"What is going on? Who are you talking to at this hour?"
Rachel turned over to scold her sister and ask her to hung up the phone, but she immediately realized that Aliana was not talking to anyone. She was sitting upright, with her arms limp by her sides, staring into the wall in front of her and speaking to herself. It was very strange and a little creepy.
Oh my God! Is she talking in her sleep? Why is she sitting like that?
She couldn't understand what her sister was saying but a couple of words were clear enough, "pussy" and "yours", which only increased Rachel's confusion. Aliana's was breathing increasingly faster while she spoke, as if she was getting aroused by her own incomprehensible statements.
"m... pussy ishh yours, m p..y ss yours, Ihh m...st ser... my m..s.."
Rachel watched her sister for a moment, hesitant about what to do. She had heard that you are not supposed to wake a sleepwalker. But then, Aliana's whispering stopped and turned into a long, soft moan. Rachel saw her sister's legs twitching while her eyes rolled back. Aliana was having an orgasm!
What the hell?!
After her climax subsided, the teenager slowly leaned back, almost robotically, until she was flat on her back. Then she fell asleep instantly.
Rachel rested her head back on the pillow but her eyes were wide open. It was hard to believe what just happened. The sound of Aliana's orgasmic moan was burned in her mind. So was the image of her shuddering legs and twitching hands. Rachel realized that she was getting wet!
She had an orgasm without touching herself. I didn't know it was possible.
***
The next morning, Rachel, her sister and her brother were watching TV. Apparently, Aliana had no recollection of what happened the night before and Rachel decided not to talk about it. It was probably a one time thing.
If it happens again, I'll tell Aliana to see a Doctor.
She thought.
Rachel hadn't noticed that her brother Brad and Aliana were staring at the TV almost without blinking and their mouths were slightly opened, as if they were in some kind of trance.
With the corner of her eye, Rachel saw unusual movement on the couch. When she turned her head, she gave a gasp of surprise. Aliana had unzipped Brad's pants and her hand was reaching inside.
"Hey! What are you doing?!" Rachel asked loudly, almost screaming.
Brad was still staring at the TV like nothing was happening. Rachel couldn't believe what she was seeing. Why was Aliana fondling her brother? Why wasn't he stopping her?
After a moment, Brad finally acknowledged the situation but he just turned his head to look at her sister. They stared at each other without saying a word, yet Aliana's hand kept massaging Brad's growing phallus.
"Aliana! Stop doing that! Brad, stop her!"
Rachel was expecting Brad to pulled his sister's hand away but that didn't happen. There was something odd about the way he looked at Aliana. As if he was not looking at her but looking through her.
Far from stopping, Brad stood up and pulled his pants down. He was not wearing underwear and his fully erect cock sprang upwards, demanding attention. Aliana quickly knelt in front of her brother and grabbed his phallus.
"Are you guys insane?!", Rachel exclaimed, "If mom sees you, you both will be grounded for life!"
Rachel stood up and walked around the sofa with the intention of pulling Aliana away but when she saw Brad's cock in display, she stopped. Rachel found her brother's cock so alluring. She shook her head trying to push the dirty thoughts off her mind.
Aliana was no expert on sucking cocks but she had seen plenty of adult videos and she was planing to work by example. After sensually licking the tip for a moment, she engulfed the head of Brad's phallus and tightened her lips around its girth, then she started bobbing her head back and forth.
"Aliana, you can't do this. This is not right!"
To Rachel's eyes, Aliana was sucking her brother's cock like a pro and she was astonished. It was hard to believe that her younger sister was such a slut.
Aliana shoved Brad's cock deeper into her mouth until it reached the back of her throat. She gagged a little and quickly pulled back. Then she tried again and again. Soon she got used to it. The young woman was preparing herself to give her brother a deepthroat.
What is happening? They are acting like I am not even here.
Rachel wondered, truly confused.
After a couple of failed attempts, Aliana succeeded. She swallowed Brad's big cock all the way to his balls. Brad moaned from the delightful sensation of his sister's throat clutching his dick so tightly. Aliana pulled back for air, then engulfed the entire cock again. She did this several times while rubbing her pussy under her long top.
Wow! How can she do that?
Rachel thought, baffled by Aliana's actions.
For a brief moment, she forgot that it was her brother and sister who were performing this debauchery and she felt aroused. Then she shook her head again and came back to her senses.
Brad couldn't resist this lovely treatment for long and soon his cock began to pulsate announcing his orgasm. Aliana pulled back and opened wide just in time to receive the hot streams of cum all over her face and inside of her mouth.
Before her brother was done, Aliana leaned forward and engulfed the tip of his cock between her lips, making sure not to waste the last drops of cum. Brad had finished but she was just getting started. Aliana was so horny that the juices from her pussy were dripping to the floor between her legs.
The young woman quickly removed her top and threw it away. She walked around the sofa and laid in such a way that her hips were higher that her head and her pussy was in full display. Brad was certainly eager to continue the sex session because in a matter of seconds he was on his knees with his head buried between his sister's thighs.
"Now you? What the hell is the matter with you two? I swear I'm going to tell mom about this."
Rachel was still complaining but she couldn't make herself walk away. She couldn't even look away. There was something about this naughty scene that pulled her in like a magnet. It was there, in the back of her mind and she couldn't get rid of it.
Brad and Aliana still ignored Rachel, as if they were in a different dimension where the only thing that mattered was sex; crude, unrestrained sex. Brad was licking his sister's clitoris with avidity. He often had oral sex with his girlfriend and he had acquired a lot of experience; now he was using all this knowledge on his younger sister, making her squeal with pleasure.
"Mhh...Brad... that feels so good," Aliana cried out.
Aliana felt Brad's tongue twirling around her erect clitoris, then entering her pussy and back to her clitoris. The sensation was wonderful and she was so aroused to begin with, that it took her only a couple of minutes to reach a strong orgasm. The first blissful spasm made her loose control of her body. After that, she bucked wildly over the couch while Brad grabbed her hips trying to keep her in place.
Oh my God!
Rachel saw her sister jolting like a fish out of water and realized that Aliana was climaxing. It was perversely erotic to see her sister convulsing in bliss like that. Suddenly, Rachel felt her pussy twitch within her denim shorts.
Aliana's trembling thighs trapped her brother's head in between, urging him to keep licking her pussy, prolonged her orgasm. The teen acted as if she was possessed by a sexual demon, arching her back with her eyes completely rolled back and gushing all over her brother's face.
I have never cum that hard. This is amazing.
Rachel thought, watching everything up close without saying a word. She was too transfixed by her sister's sensual display.
When her orgasm faded, Aliana took a few seconds to recover and then she was ready for more. And so was Brad. His cock was fully erect again. Aliana turned around and bent over the couch as her brother aimed his cock at her vaginal entry.
The imminent penetration of her sister brought Rachel back from her spellbound staring. She complained one more time, urging them to stop.
"Wait! Don't do it. Brad is not wearing any protection."
And again, her brother and sister ignored her as if she wasn't there.
Brad shoved his cock into his sister's pussy without holding anything back. Aliana was so tight that he almost cum on the first blow but he was able to control himself.
Aliana was not a virgin but she had never had a phallus this long penetrating her so deeply. She moaned out loud, not caring who could hear her around the house.
When Brad started pumping his sister's pussy with all his might, Rachel decided that it was enough. She couldn't allow this madness to continue any longer. She was going to tell her parents and let her brother and sister suffer the consequences.