The Dam Breaks

While the group was still at the beach, Abigail just woke up.

Abigail was her twin Rachel's copy, but while her sister had a thick ass, Abigail had a great bubble one.

"Early noon?" "Should have slept more," she thought.

Abigail was pretty lazy and didn't know what she wanted to do with life. For now, she just worked at the local bar. She knew her smile could get her amazing tips, and she played with the idea of using the pole at the bar, but that seemed like too much work, so she passed on it.

She got out of bed, put on a bra, and went to wash her face.

"Hell yes, fuck me harder! Yes, rub my clit!" she heard. That was her mother's voice.

"Her and Dad shouldn't be at work now," she thought. "And why are they so loud? Probably forgot I'm here again. Well, they can enjoy themselves."

She continued with her business. She went to the bathroom, did what she needed to do, and went back to her room.

But as she walked back, she heard a male voice this time.

"Fuck, you enjoy fucking me, knowing your husband's at his job?" he said.

"At least fuck my ass while you talk dirty to me," her mom laughed.

She recognized the voice. It was Uncle Forest, her mom's best friend and River's dad, one of her best friends.

She felt sick.

"Her mom cheating? Does Dad know? What is going on?!" she thought.

"No, no, no way Mom's cheating. You'd get sugar overload just being around my parents," she thought. "There has to be an explanation."

"The feeling of your big cock stretching my ass? Amazing!" she heard her mom say.

"Fuck, I have to watch them," Abigail thought.

She cracked the door open slightly.

She saw her mom riding Uncle Forest wildly.

She didn't want to admit it, but her mom was probably the best MILF in town. Her eyes were piercing blue, which fit her dark hair. Her tits were natural and big, her ass was the right amount of thick and looked amazing while getting fucked in her tight hole, and her body was just made to hold those things in the perfect way.

Her uncle really wasn't shabby for his age—you could see he took care of his looks.

"I need to stop looking before they see me," she thought, but right then she saw her mom starting to turn her head in her direction. She closed the door quickly and went back to her room, wet after what she saw.

In the room, Rebecca stopped riding Forest.

"Fuck, that was probably Abigail. I should have checked if that lazy girl wasn't home," she panicked.

Her kids were her world. She never wanted anything to come between them, and now it could.

"Calm down, Bec. We'll just have to tell our kids we started swinging before we planned," Forest said calmly.

Rebecca, who had already gotten off him and started getting dressed again, considered this.

"You're right. I'll talk to David, and we'll tell the kids at dinner. No reason to hold a secret from them anymore," she said after she'd calmed down.

Forest came to her and gave her a kiss. "You can go calm down a little bit. I have some new ideas for my new book anyway," he said.

Forest was a successful writer, always looking for new book ideas.

"I'm not sure I have time," she said. "I have yoga in 20 minutes."

Rebecca was a yoga instructor; she couldn't cancel on her group 20 minutes before starting.

"Well, go give her a quick reassurance that all is good and explain everything at dinner. That should be enough," Forest said.

"Yeah, I'll do it," Rebecca said. "Send Skye my love."

"Will do," he smiled. Skye was his wife.

"Well, time to check on my daughter."

Abigail entered her room quickly, soaking wet.

"Fuck, never thought I'd find something like that hot," she thought. "But I have to know what's happening there. I refuse to believe my mom cheats. Maybe they swing? Yeah, I can see that with how close they all are."

"I need some relief myself," she thought. She opened her drawer and took out her pink vibrator. She put it on her clit while controlling the vibrations.

Meanwhile, her mom came to her room to talk to her and opened the door while Abigail was in the act.

"Mom! What are you doing?" Abigail yelled.

"Sorry," Rebecca said awkwardly.

"Fine, let me dress. I do want to hear the explanation," Abigail said.

"All good, baby, nothing to be ashamed of," Rebecca said with a caring voice.

Rebecca went out, thinking, "What an amazing body, those tits, her body, but that bubble ass is amazing."

"Stop thinking about your daughter like that, you're her mom for god's sake," Rebecca thought, lashing out at herself.

"But the fact she went to her room to her vibrator... mmm."

Rebecca had a battle inside herself, each time another side winning a little.

"Come in, Mom," Abigail said.

Abigail was already fully clothed and saw her mom sitting next to her.

"Honey, I have to go to class, so I'll just say it fast, and tonight me and your dad will give you and your siblings a proper explanation. Is that okay?" she asked, worrying.

Abigail just nodded.

"A month during our little trip, some things happened, and we started to swing between the three families. What started as a trip only developed into a regular thing," she said, checking her daughter's reaction.

"So Dad knows everything, no cheating?" she had a lot more questions, especially around the three families part. "What do you mean three? That's Dad and Aunt Aria, his sister??" she screamed in her head.

"Dad knows everything and approves everything. We'll explain everything, I promise," she said, kissing her daughter's forehead.

"As long as there's no cheating, I'm okay. Love you, Mom. Now go to your class," she said while smiling.

"Love you too. Maybe join me? You could move your body a little," Rebecca said, her voice trailing off slightly as she tested the waters.

"Nah, I have my bed right here," she said, lazily laying down again.

Rebecca laughed a little and thought, "Well, I tried."

And went to her work.

"Well, that happened," Abigail thought as she went back to sleep.

The group finished at the Beach and each went to their own.

Finn and Luna were pretty silent the way back. That day was a little special, and each wanted to process it in their own way.

As they arrived home, each went to their own room.

"I need to think about everything," Luna thought. "Me and Ben were always close, a little closer than most cousins, but we never crossed the line. But today I couldn't stop thinking about this, and I don't even know how to talk about this with him," she thought while getting ready for her shower.

She took her bikini off, only to see how soaked her pussy was.

"They all watched me, even Finn. I know his look, for a moment he forgot I'm his twin. And Ben so close to my ass, but as always the caring Ben won't do something he thinks I won't be comfortable with, that's why he's the best guy I know. And Willow, she drove me crazy today, that kiss... what the fuck was that kiss?"

Only by thinking about this stuff, a little moan came out of her mouth.

"Did I seriously just cum? Only by thinking about this day?" Dam I need an outlet ,soon, she thought.

Now shower, she wrapped herself in a towel and went to the shower, too distracted to hear someone was already there.

She opened the shower.

While her sister looked at her weirdly, Melody also noticed that Luna still didn't realize she was already showering.

And Luna removed her towel. Melody took a good look at her body.

"Someone spent overtime sculpting this work of art," Melody thought.

Luna, who just took her towel off, felt the look.

She turned around only to see her sister examining her naked body.

She panicked a little bit. "Sorry, sis, I didn't even notice you're here. I'll go out, you finish showering."

While Luna said that, she noticed her sister's gaze didn't come off, which made her wet again.

"Don't worry, sis, you can join me in the shower," Melody invited her.

Luna watched her sister's fully exposed body while she invited her in. Melody had blonde hair with blue eyes, her tits were smaller than hers but she still had a pretty big pair, her body was more slim and athletic than hers, and her ass was refined from her years of dance to be a great athletic curvy ass.

Luna just nodded and walked in.

The shower wasn't small but still not big. Two fit, but their boobs were always touching parts of each other body.

"Hey sis, can you do my back?" Melody suddenly suggested.

Luna really didn't mind as it was just Melody.

As she did her back, Melody asked, "What happened today? You seemed a little out there." Luna gave a quick summary, leaving out Finn looking and her wanting Ben, of course.

"Oh, so you guys finally started to have fun?" Melody laughed.

She was the most adventurous in her family. If she were Luna or Finn, she would have already fucked every single one of her friends.

"What fun are you talking about? Today was just a day, we will forget about it soon," Luna said, really believing that.

"Oh sis, stop being naive, Jade broke the dam, not going back now," Melody said. "And let me do your back."

Luna thought of her sister's words. Dam broken? We'll see.

She felt her sister's hands starting to travel behind her back.

"What are you doing?" Luna said as she felt Melody's hand on her tit.

"Calm down, I'm just helping you, you're pretty pent up," Melody said.

"We are sisters, that's not like I'm Finn," Melody joked.

"Whatever, I'm enjoying this anyway," Luna said.

She felt weird letting her sis do it, but she was right, that's only Melody. They had moments like this all the time, so a little more wouldn't be so bad.

Melody's right hand went to Luna's boob, while her left hand went to play with her pussy.

"Mmm, like that, yes," she heard Luna's little moan.

Melody, who felt that was okay to continue, used two fingers.

"Yeah, Luna, cum for your sister, cum for me," as she sped up.

"Fuck, fuck, fuck," Luna kept moaning.

Eventually Melody felt Luna cum.

"Damn, sis, you were really pent up. You came fast," Melody said.

"Yeah, I really needed that. Thanks for the help," Luna thanked her.

"But it wasn't weird for you? I'm your sister?"

Luna did enjoy herself, but everything felt so wrong about that.

"Nah, I just helped my little sister. So this time it was more sexual, so what?" Melody dismissed Luna's worries.

"That's one way to look at that," Luna thought. "Anyway, thanks for the help, I need to rest a little before dinner," Luna said as she left the room.

Melody left pretty fast after. Finn, who waited for the shower to be free, saw his two sisters come out back to back. "About time, they should shower together more often, it was faster this way," he thought. He was used to waiting longer for their showers.

"Anyway, quick shower. Ty sent me a message, he and Ben are trying the new MMO."