Billy Jones was just like any normal, athletic eighteen year old boy. He loved sports, video games, hanging out with his friends, and girls. Most of all, Billy loved girls. He fantasized about sex constantly, and masturbated several times each day. He lived with his dad, John, along with his step mom Emily and his step sister Carla.
The family had a very large apartment on Central Park West in Manhattan, and a cottage in the Catskill Mountains north of the city. Cottage isn't really the correct term for the mountain house. Although it was designed to appear rustic, it was anything but. It had nearly every amenity you could think of, but just didn't appear that way. They all loved the house, and summered there each of the four years they had been together as a family.
There was a huge open living area with high ceilings and wood beams. This great room housed the kitchen, dining area, and a very large living room area with a large stone fireplace. On the east side of the living room was a door that led into a large master suite, consisting of a sitting room, bedroom and large bathroom with an oversized tub and separate shower. On the west side of the house was a second bedroom that was also very large, along with a good sized bathroom. This bedroom had four twin beds to accommodate Billy, Carla, and any friends they might invite to stay over.
I suppose this story really begins in early June of last year. Billy had been assigned the chore of chopping wood that day, and he was exhausted by the time evening rolled around. He showered and retired to his bed fairly early, reading a bit before he curled up to sleep. He had slept for a couple hours before Carla came in to get ready for bed. Carla, like her mother, was a goddess. In fact, describing one was essentially describing the other. They were both tall, blond and leggy, with a narrow waist, wide hips and tits that easily filled out a double D cup. They both had full lips, a slender nose, and bright blue-green eyes. Carla was twenty, and Emily was thirty seven, having had Carla at a very young age.
As one can imagine, Billy struggled with his feelings regarding his sister and step mother. He was not a child when they came into his life. He was beginning to grow into a young man, and his raging hormones would never let him forget that these two beauties were not of his blood. Truth be told, Billy had concocted countless fantasies about the two women over the years. To make matters worse, Carla knew the effect she had on Billy, and delighted in teasing him as much as she could. She allowed him to see her in just a bra and panties quite often, insisting they were no different than a bathing suit. She loved leaning over to talk to him, allowing him a perfect view of her ample cleavage. She would often accidently bump into him, making sure her perfect ass rubbed up against his crotch.
Carla looked at her brother when she came into the room. He was curled up in bed, facing away from the wall toward the bathroom.
"Billy? Are you awake," she prodded.
Billy was quiet, so Carla shrugged and pulled off her t-shirt. She glanced in Billy's direction again, satisfied that he was still asleep. She reached back and undid her bra, freeing her large tits from their daytime bondage. After she slipped off her shorts and panties, she tossed them onto the floor near Billy's bed. The panties were silk and lace and very sexy. This was another way Carla loved to tease Billy. She loved having him see sexy little undergarments of hers, knowing that he would wonder how she looked in them. With a final glance at Billy, Carla walked off to the bathroom to shower.
Billy opened his eyes into a squint and watched her go. She had awakened him, and he had surreptitiously watched her undress and head to the bathroom. He heard the shower go on and waited a minute or so, then he reached out and grabbed the panties from the floor. He was a bit surprised to find that the crotch of the panties were soaked and a bit creamy. With his cock rapidly stiffening, Billy brought the panties up to his nose and breathed in deeply, reveling in the odor of his sister's cunt. Billy had begun to stroke himself, and, unable to control himself, he reached his tongue out and tasted Carla's secretions. He licked again and again, imagining it was her sweet pussy instead of her panties.
Billy had done this before, both with his sister's panties and his mother's. He noted that there were times that the panties were quite soiled, and other times when they appeared to have barely been worn. Frequently, he would cum into the panties when he was finished smelling and tasting them. He always felt a bit guilty, but never enough to stop doing it.
Billy was so engaged in what he was doing that he didn't even notice that Carla was standing naked in the doorway of the bathroom and watching him. What he didn't know was that he was the reason her panties were so wet. Carla had spent a fair amount of time sitting on the porch that day, watching her muscular brother chop wood. He was shirtless and sweating and it was all she could do to keep from slipping a hand into her shorts and finger fucking herself as she watched him. Carla lusted after Billy as much as he did her, but she didn't make it obvious as he did. She would nearly always masturbate after teasing him unmercifully, as it made her quite needy.
"Oh my God! What are you doing," she said to him. "Are those my panties, Billy?"
Billy nearly leapt from the bed when he heard her, throwing the panties onto the floor and stammering.
Carla walked over and snatched them up.
"Were you really just smelling and licking my panties, Billy? And this..," she said, yanking back the covers to reveal Billy's huge, rock hard cock, still wrapped in his hand.
"I...I don't know. I...I was having a dream," Billy said, trailing off.
"You little pervert. What am I supposed to do now," she asked, looking at him with a raised eyebrow.
"I...Carla...Listen...I'm sorry. I..."
"I think I should tell Mom and Dad. Something has to be done about this," she scolded.
"Carla, please. I'm sorry. I'll do whatever you want. Please don't tell them."
She looked at him a long time before answering.
"You need to be punished, little brother. I have just the thing. I am going to tease and torture you whenever I want, and I will not let you cum. You need to learn a little self-control."
"What do you mean, tease me?"
Carla walked over to the door and locked it, then returned to Billy's bedside. He was looking up at his naked sister, and his cock was throbbing with need. For her part, Carla had been unprepared for the sight of her brother's cock. It was long and thick and beautiful. Seeing it had given her an idea.
"Okay, brother. You just lay back and put your hands at your sides. If you so much as lay a finger on me, I am reporting this entire thing to Mom and Dad. Do you understand?"
"Yeah, okay. What are you going to do?"
Carla climbed onto the bed and straddled Billy, lowering her cunt down so that it rested on his cock. She noted that it was big and hard and was burning hot.
"I am going to rock back and forth and rub my pussy on your cock. If you feel like you're going to cum, you'd better tell me. I swear, if you cum, you're going to deal with the consequences, Billy. Understand?"
