Carla woke up full of regrets. She shouldn't have teased her son yesterday. She shouldn't have invited him into her bedroom. Most of all she shouldn't have had sex with him.
"It has to stop, right now!" she decided firmly. "It was all a big mistake. I'll get a different nightgown and start locking the door. It'll be okay."
She closed her eyes a moment. "Robbie will listen. He's a good boy. Heaven knows he isn't interested in girls his own age. Certainly, he can't be that interested in an old lady like me."
Carla sat up and turned her head. Robbie lay next to her. Naked, just like last night. When they had sex. It wasn't good sex but she could train him how to use his cock the right way.
"Stop it!" she told herself. "He's your son."
She looked down. Her son had tossed the covers off in the night. His morning boner stood tall, angling away from his soft pubic hair.
"Look at that big thing. I could swallow it whole," went through her mind. She couldn't stop the thought.
Her hand reached out and lightly touched her son's cock. It bounced a little. Her mouth moved toward his crotch.
"Don't you dare do that!" Carla's sensible self was not going to allow those kinds of shenanigans.
Carla tore herself away and got out of bed. She went into the bathroom. Out of sight, out of mind.
Except her son's big cock wasn't out of her mind. She had barely finished peeing when her hand went to her pussy and two fingers thrust inside.
She heard a noise. Robbie was up. Carla heard him pad down the hallway to the other bedroom. She imagined him stroking himself in the shower. The woman literally slapped herself.
"Stop thinking that way. That's the first thing I have to do. Self-control is all I need."
She rushed into the shower and turned on the cold water. That helped. After hurriedly getting dressed, Carla grabbed her purse. She would go for a drive and calm down.
She was on her way out, passing the other bathroom. The door was slightly open.
"I won't look," she told herself. Out of the corner of her eye she 'accidentally' saw her son. Robbie had his cock in his hand, stroking it.
"I wonder if he's thinking about me." Carla shook her head. "Cut it out! Self-control, remember?"
"I'm going out. I don't know when I'll be back," she shouted. The woman almost ran to the car. She had to get away and clear her head.
Carla drove to a coffee shop she had once been to on the other side of town. She didn't want to bump into any of her friends. She needed to think, not talk.
"I should never have looked. That first time. When I peeked at him masturbating. That's what started this. I never looked before. Why did I look that time?" She took a bite of her bagel.
"At least I didn't look this time. I saw him but it was an accident. I didn't look on purpose." It was the first of many lies Carla would tell herself.
She stayed for nearly two hours. One thing Carla needed to figure out was whether she wanted sex with her son or just wanted sex. Maybe all this was only because Robbie's penis was conveniently nearby.
Sadly, Carla knew that wasn't true. Several male teachers, and one female teacher, had made passes at her. If she only wanted a penis, or a strap on, there were options readily available. She wasn't interested.
"It's Robbie," she sighed. "I want his penis, not just any penis. But that's so wrong. I'll just put it out of my mind. Never think about it again."
She pondered some more. Without noticing, Carla weakened her resolve. It was just a tiny crack in her defenses.
"It's okay to want his penis. There's no harm in wanting something if you never do anything about it." So much for 'never think about it again'.
When she left, Carla was resolute. She would end this. It would never happen again.
Carla arrived home. Robbie was nowhere to be found. There was a note. 'Gone to Joey's'.
That was a good sign. Robbie was probably feeling bad about what happened too. He didn't want to face his mother. He was ashamed. Carla was sure of it.
She decided it was time for spring cleaning. It wasn't Spring and the house was clean but Carla needed to keep her mind occupied. She put on some old clothes and mopped the kitchen floor. When that was done, she clambered up on the counters to dust the tops of the cabinets.
She was kneeling on the countertop dusting the last cabinet when Robbie came home. He had come in the front door and she hadn't heard him.
If she had seen his face, she would have known he didn't regret last night. He wasn't ashamed. But Carla had her back to him so she didn't see his face.
Robbie wore a broad grin. His mother's ass was pointed right at him. She was wearing the raggedy jeans she used when cleaning. The jeans with the big tear in the back. She was also wearing a thong under the jeans. Robbie could see part of one bare ass cheek sticking out through the tear.
He wanted to go over to her and make the tear even bigger. He wanted to rip the jeans off her entirely and ravish her again.
Not that Robbie had ravished her the night before. He was a virgin with absolutely no experience with sex. He didn't even watch porn. His idea of good sex was to ram his cock in as fast as he could until he came. And then do it again.
But Robbie restrained himself. He was old enough at 18 to realize some things have to wait. Attacking his mother out of the blue was not a good plan. They probably needed to talk first. He cleared his throat.
Carla jumped, startled, and almost fell off the counter. She turned around.
"Hi," she said tentatively. "How were things at Joey's?"
"Fine. We played video games for a while and tossed the football around. Nothing special."
That was true but just barely. Joey had been one of the friends teasing Robbie about how hot his mother was. Robbie wanted to get back at him. He had come very close to telling Joey what had happened. How super hot his mother really was.
He pictured her in his mind from last night. Lying on the bed with her legs spread, fingers moving in and out of her hairy pussy. His hand moved to rub his cock through his pants.
"Robbie! Stop it!" His mother's tone was sharp. "We have to talk" He watched her ass wiggle as she got down from the counter.
They sat in the living room. He was on the couch, she was in the rocking chair. Carla wasn't going to take any chances by sitting next to her son and his yummy penis.
"It was wrong what we did, Robbie. You know that and I know that. We can't do it again. Ever." She had tried to tell him this before but failed. Instead, she had encouraged him.
"I shouldn't have teased you at dinner the other night. I shouldn't have let you watch me masturbate. I shouldn't have brought you into my room last night. I'm sorry."
Robbie remained quiet.
"You understand, don't you? That it was wrong? That we can't do that again?"
Robbie nodded his head. He knew it was wrong. He just didn't care. Carla walked over and kissed him on the head. She headed for the kitchen again. Robbie watched her ass cheek jiggle through the tear in her jeans as she walked down the hallway.
Carla felt good about their conversation. Robbie understood. He knew it was wrong. He was a good boy. He wouldn't try anything again.
She ignored the fact that Robbie hadn't tried anything the first time. She had let him watch her masturbate, she had led him to her bedroom, she had said 'Come to momma' and spread her legs.
Carla was determined to get things back to normal. If she had to ignore a few facts along the way, so be it.
Robbie desperately wanted to have sex with his mother again but he was faced with the same problem as before. He didn't know how to make a move on her. Sex was foreign territory for him. He resigned himself to the idea that he had gotten lucky once but it wouldn't happen again.
His mother went to bed at the regular time. She brought her book as usual. Robbie saw her close the bedroom door and heard it lock. No walking in without warning any more. Carla was serious that this wouldn't happen again.
Robbie was headed for the kitchen when he noticed his mother's raggedy cleaning jeans in the laundry basket. He took them out and smelled them. They smelled like jeans. That was disappointing. He had hoped they would smell like her pussy.
But looking at the tear, he got an idea. Robbie grabbed the jeans and pulled. The tear increased in size by several inches.
The boy smiled. Now he just had to get his mother in the cleaning mood again and he could watch her whole ass cheek jiggle and wiggle all day long. It wouldn't be as good as having sex but it was better than nothing.
It was the next afternoon before he thought of an approach. He would offer to help with the cleaning. Why it took him so long to come up with such a simple idea was not a mystery.
Robbie didn't have many friends because he wasn't used to approaching people and chatting with them. He was something of an introvert. He also spent most of his time pondering intellectual ideas. Dealing with real people didn't come naturally.
"Want me to help you with the cleaning?" he asked his mother. "You were doing the cabinets yesterday when I got home."
"That'd be nice. Thanks. I'll change into my cleaning clothes." He saw his mother pull the torn jeans out of the hamper.
When she returned wearing the jeans, Robbie was surprised his mother hadn't noticed the tear had gotten bigger.
"Maybe she did notice Maybe she wants to show me her ass," he thought hopefully.
"Let's do the living room with those tall shelves," his mother said. "Bring the step stool." She turned and walked down the hall.
Bingo! Robbie almost laughed he was so giddy with success. One of his mother's ass cheeks was fully exposed by the enlarged tear. It jiggled as she walked. Robbie put his hand down his pants and stroked his cock a couple times. Then he picked up the stool and followed his mother.
When Carla cleaned, she got very focused on what she was doing. Robbie made sure to stay on the side of his mother with the exposed butt cheek. Because of his repeated glances at her ass, Robbie didn't do a very good job with the cleaning.
"What's wrong with you today?" his mother asked. "You've done that shelf twice and it's still not clean."
Robbie figured he better shape up or she would know something was going on. For the last 30 minutes, he kept his eyes on the job and not his mother's ass.
There was only the highest shelf left. If she hadn't been so focused on the job, she would have asked Robbie to do it. He was taller by a couple inches.