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inc/mf/brother/sister
This story contains erotic incest fantasies. If you find this offensive then do not read.


Cash, Grass, or Ass


Getting a new license at the age of sixteen is always an exciting event. Jacob was getting his license today. The first time in his life he had more mobility, which meant more freedom. His mom had driven him to the DMV but he had driven home. "Now, I want you to know," his mother said, "that you need to help drive Lisa around sometimes."

"Oh, mom," Jacob said, "she is such a pain in the butt."

"She is also your sister, and I need some help getting everyone to their after school events."

"I'll never get to go anywhere myself. I"ll always have to drive her around with her annoying friends."

"I didn't say you had to be her personal taxi, but if you want to have keys to the car, with no questions asked, then you need to help out."

Jacob was obviously not too keen on the idea of driving Lisa around at her beckon call. He didn't plan on doing anything for her. "Fine mom," emphasizing mom as if he were annoyed, "I'll drive Lisa around when she needs rides to school stuff, but I won't drive her around with her friends."

"That would be great, I'm sure she can find her own ride for social occasions."

Jake scoffed at his mother's response, "Social occasions?"

"Yes, if she doesn't need to be somewhere for school she can either find a different ride or barter with you for a ride."

Barter? Why hadn't Jacob thought of that! Perhaps there was a way he could get some cash out of her, a quick way to make some cash.


*****


A couple weeks had passed since Jacob received his new drivers license. That Friday afternoon his parents had left, taking the two youngest kids with them to a gymnastics competition across the state. They had always encouraged their children to be physically active. Jacob and Lisa were no exception. Jacob ran cross country and Lisa was a cheerleader. Jacob stayed home from his younger siblings gymnastics competition because he had to work on Saturday afternoon. Lisa, well, she just stayed home because she is Lisa. Her parents had learned it is easier just to leave her home than listen to her complain about how bored she is.

Jacob was sitting in his room, jerking off to Internet porn like usual, when Lisa knocked on his door. Jacob quickly pulled up his pants and turned off his monitor. "Come in," he yelled.

"Hey," Lisa said, "Mom told me that you can give me a ride while they are gone."

"Do you have somewhere to be for school?"

"I just need you to take me and Maddy to the mall."

"No way! Mom said I only have to take you to school stuff you have to be at."

"But we really need you to and mom said you would drive me around while she was gone."

"She told me that I didn't have to be your personal taxi. So either give me some cash, grass, or ass. Nobody rides for free."

"Grass," asked his naive fourteen year old sister, "Do you want me to mow the lawn or something?"

"No. Don't you just have some money?"

Lisa made her self comfortable and sat on Jacob's bed, "No. I don't have money for you. I just have enough to go to the mall and buy some stuff."

"So you have some money?"

"Yeah, but what is the point in going to the mall if I don't have any money to spend?"

Jacob repeated himself, "Cash, grass, or ass. Nobody rides for free."

"Don't be such a pervert. Stop asking for ass."

Jacob repeated, "Nobody rides for free."

"Your such a jerk," Lisa cried! She was perturbed and stomped out of the room in response.

Maybe this wasn't going to be as easy as Jacob had thought. He was really just trying to be funny while extorting money from his sister, but it didn't look like it was going to work. He brushed it off and got back to his Internet porn. He was about ready to pull out his cock once again when he heard another knock at the door. He turned off the monitor and yelled as before, "Come in."

"What about ass," Lisa asked?

"What do you mean, 'what about it'?"

"I mean what do you want. You said cash, grass, or ass. So what if I chose ass, what would I have to do?"

"I was just joking about the grass and ass."

"So, I don't have money to give you. What if I just jerked you off. Guys like that kind of thing, right?"

Jacob was surprised at Lisa's offer. "I bet you haven't even seen a dick."

"So," Lisa said, "It can't be that hard to do, guys can do it."

The low blow to male intelligence had not been missed by Jacob. "Yeah, we know how to jerk off. I don't want you touching my dick if you don't know what you are doing."

"Just pull out your dick and show me. Then you can give me and Maddy a ride to the mall."

Jacob lay down on his bed, Lisa sat next to him. He pulled his pants down, exposing his already rock hard erection.

Lisa stared at his dick, "Gross," she said.

"Do you want to do this or not," Jacob asked?

"Fine, what do I do?" Jacob pulled Lisa's hand to his cock and wrapped her hand around it. "So I just hold it," she asked?

"No, move your hand up and down like this," Jacob demonstrated a jerking motion. Lisa followed suit by moving the skin of his shaft up and down. "It is going to take all day if you do it that slow," Jacob said.

"What should I do then?"

"Jerk it faster."

Lisa did as she was told and started moving her hand faster up and down her brother's shaft.

"Oh, faster," Jacob moaned.

Lisa continued jerking his cock as fast as she could. She couldn't think of anything she wanted more than just to be done jerking off her own brother.

"Oh yeah, your a good sister," Jacob said in ecstasy. "Use your other hand and hold my balls," He said. Lisa reached her other hand in and held his balls in one palm while continuing to jerk with her other hand. He could feel his cum beginning to build up. Lisa gave his balls a squeeze and he couldn't hold back any longer.

A stream of white sticky cum shot out of Jacob's cock, catching Lisa off guard. "Disgusting," she yelled! "What is that?"

Jacob couldn't help but wait for his cock to finish unloading. Lisa had gotten some on her hand but most of it ended up on his stomach and pubic hair. "That is sperm. It's what gets women pregnant."

"That's gross," Lisa replied.

"That wasn't too bad Lisa."

"Shut up," she said. "Don't you dare tell anyone I did that. I'll be waiting for you in the car. We have to stop by Maddy's house and pick her up."


*****


The car ride was silent. Lisa didn't want to say a word to her brother after what had just happened. They had picked up Maddy and Jacob dropped them both off at the mall. Not a word was exchanged and no return time was stated. So, without anything to go on, Jacob drove himself back home.

A few hours had passed before the phone rang. "I need you to come pick us up," It was Lisa.

"I did what you asked me to," Jacob said. "I gave you a ride to the mall."

"Right, and now we need a ride home."

"I'll come get you and give you a ride home," he said. "But you have to pay for it."

"Oh, you have to be kidding me," Lisa cried aloud! "I already gave you one of those today. Besides, it is really gross."

"I promise you won't have to touch me. Either you come up with some money to pay me to get you or you promise me that I can have thirty minutes with you."

"What do you want then...if you don't want, you know." Jacob could tell Lisa was trying to avoid saying the words. Maggy must have been standing close by.

"I'll leave my clothes on. But I want yours off," he said.

"Your so gross," she yelled! Then she hung up on him.

Jacob couldn't help but laugh to himself. Trying to get sexual favors from her turned out to be more fun than trying to get money. He sat by the phone with the hopes that she would soon call back. Nearly thirty minutes passed by, he figured she had found another ride home and so he finally moved away from the phone.

Another thirty minutes passed, Jacob was expecting the girls to come barging through the door at any minute. The phone rang a second time. "Come get us, I'll do it." Lisa had finally called back.

"Are you serious?"

"Yes, come get us. But when I say stop you have to stop."

"I'm on my way," he said.

Much to Jacob's surprise, Maggy stayed with Lisa instead of going home. "How are you supposed to pay me back with her around," he whispered to his sister on the way in the door.

"Don't worry," she said. "give me a few minutes."

Lisa disappeared with Maggy into her room. Not long after Lisa came out alone, "Are you ready to do this?"

"Yeah," Jacob replied, "where is Maggy?"

"She is waiting in my room."

"Did you tell her what we are doing?"

"Of course not. We only have thirty minutes so we better get started." Jacob followed Lisa to his room. "So what should I do?"

"Take off your shirt," he responded. She did as he asked. "Now take off your pants." She was hesitant, but finally complied. "Now your bra and underwear." Lisa took off her bra, giving her brother a good look at her tits.

"Is this what you wanted? Just to look at me?"

"Take off your underwear," Jacob repeated.

"Please don't make me take those off. You can look at my boobs just fine."

"Take em off," he repeated.

Lisa slid her panties off, keeping her legs pinned together. "There she said. Now why do you need to stare at me for thirty minutes?"

"I'm not just going to stare at you," he replied. "I'm going to pay you back."

"I don't know what you mean," she said.

"Open your legs," he said. Lisa kept her knees pinned together. Jacob began to caress her knees, and then her thighs. "Open them."

Lisa began to cry, "This is so humiliating."

"Don't cry, it is going to feel good. Trust me." Jacob kissed his way up her thighs until his lips were next to her pussy. He sniffed in her scent, enjoying her aroma. He stuck his tongue out and took his first taste of a woman. She was a little bitter, yet somehow enticing. He kissed her pussy up and down the slit. As he reached the bottom he stuck his tongue out and licked her ever flowing juices from her hole.

Lisa began to moan, "Oh wow," she said. Her comment gave Jacob the go ahead he needed. He began furiously licking her cunt up and down as she started humping her hips into his face. As he licked upwards he noticed she really enjoyed it as he focused on the top of her cunt. He sucked in her labia and let it out again. She responded to his action with a loud moan. He sucked her labia in and out over and over as she moaned louder and louder.

Jacob moved faster and faster, knowing that moving quickly worked for him. Lisa grabbed his head and held him down on her pussy as she fucked his face. She nearly screamed in excitement as her first ever orgasm ripped through her body. She continued to fuck her brother's face until her orgasm subsided. "What in the world was that," she asked exuberantly?

"I'm pretty sure it was an orgasm," he said.

Before they could really begin talking about sex they were both interrupted. They heard a gasp in the doorway, Maggy. They both looked over, "Hey Mags," Lisa said. "Just paying for our ride to the mall."

"That looked really fun," Maggie replied. "I'll pay for a ride to the mall next time."

"Its okay Maggie," Lisa replied. "I think I can handle it. Besides he is my brother."


