The Griffin cabin

Kurt pulled up to cabin 14. "I hope this is the place."

"Yeah, I recognize their car," Meagan pointed to a minivan. She and Madison both got out of the car and headed up the steps. Meagan knocked on the door and waited.

The door opened to reveal a tall blonde woman who looked exactly like Caitlin only older. Harmony Griffin smiled as she recognized Meagan. "Oh Meagan, I was worried when the twins got back and said you had gone off with some other friends. I thought maybe you and Caitlin got into a fight."

"Not at all Mrs. Griffin," Meagan smiled. "We just ran into some friends of mine and I wanted to spend a little time with them before we all leave tomorrow. This is Madison by the way."

Harmony waved for the two girls to enter the cabin. "Well what brings you back then. Already finished with your visit?"

"Actually," Meagan gestured to her stained shirt. "I had a mishap with lunch and need to change my clothes. Madison tagged along to say hi to Leon."

"Oh did she now," Harmony smiled at Madison causing her to blush. "Well they should be in their room. Come on."

Harmony led the two girls up to a second story landing of the cabin. She pushed open a door presumably leading to the twins' room. "Caitlin, Meagan is back looking for..." She gasped. Meagan and Madison peeked over her shoulder and made similar noises.

Caitlin was laying on her bed with Leon on top of her, furiously pounding his cock into her pussy. At hearing their mom's voice, Leon flung himself off of Caitlin and tried to cover himself while Caitlin madly grabbed the sheets to pull up over her. Harmony stood staring at her children and blushed. Neither of the three family members could find words and Harmony eventually turned and ran back downstairs.

Meagan looked to Madison then shrugged and stepped into the room. She still needed to change her shirt and walked over to her suitcase. "You know, when I told you guys to do you, I figured you'd have enough sense to be a little more discrete."

Madison stepped in as well and surveyed the twins. Caitlin was trying to hide further and further under the sheets. Madison tried to give her and Leon a reassuring smile. She looked to Leon. "So I guess you talked to her after all."

Leon grinned sheepishly but didn't respond. Meagan shook her head at the twins and pulled her suitcase over to Madison. She took the other girl's hand and nodded out of the room. Though, she did look back over her shoulder as they left. "Just...uh...call me when you're ready to pick me up tomorrow." They quickly fled downstairs, past Mrs. Griffin talking to presumably the twins' father.

Kurt noted both girls were blushing as they came up to the car and raised his eyebrow. "What happened?"

"Nothing," Meagan replied curtly. "Let's just get back to your cabin."

Kurt shrugged and pulled the car out to head back the way they'd come.

* * *

Leon and Caitlin had managed to dress by the time they heard their father calling them. They both stumbled downstairs in a state of not worry, but pure terror. It was bad enough having a parent catch you having sex but to catch you having sex with your sibling... As they came downstairs, they found both their mom and dad seated at the kitchen table. Raymond Griffin, or Ray as everyone called him, gestured for his kids to sit down. Where Harmony was an older copy of Caitlin, Ray was a rugged, more weathered version of Leon. Life in the military had given him some hard lines, but he'd surprisingly never been sharp with either of his kids. Caitlin and Leon both sat down but neither one could look at their parents, or each other for that matter. Leon just picked a corner and stared into it while Caitlin kept nervously darting her eyes around, looking for potential escape routes.

Ray cleared his throat after a few moments of awkward silence. "Your mother has told me that she just caught the two of you upstairs having sex with each other." It was a statement, not a question, but it didn't sound angry. Leon managed to look at his father and nod. "How long has this been going on?"

"It...it just started, sir," Leon managed to find his voice. "It's all my fault. Don't be mad at Caitlin."

"What?" Caitlin jerked her head to look at Leon. "If anyone is to blame it's me. Please don't hurt Leon, Dad."

Ray held up his hands to calm the kids. "No one is hurting anyone." He looked to Harmony and sighed. "Your mother and I have been keeping a secret from you." He paused as both kids turned their attention to him. "We honestly never intended to tell you this, ever, but given this recent development it seems prudent."

He seemed to struggle to find words to continue. Harmony lay her hand on his and smiled. "Your father...is...my brother."

Leon and Caitlin’s mouths both fell open in shock, followed immediately by a barrage of questions. “What? When did this happen? How did you two start your relationship? What does this mean for our family? I’m so confused right now.”

“Kids!” Ray’s voice was firm, and the twins ceased their questioning.

Harmony continued. “We’re telling you this now, because you two are clearly taking after us in more ways than just looks.”

“But how did you two even make it work?” Caitlin stared at her parents with wonder.

“It wasn’t easy,” Ray looked to Harmony and smiled. “We started off just fooling around with simple things: kissing and then masturbating in front of each other. It probably would have escalated quicker, but our parents caught us making out one night and the next morning I got shipped off to the military.”

“Needless to say,” Harmony sighed sadly, “they were not happy with us. When Ray came home from basic training, they wouldn’t even let him stay in the house.”

“Shortly after that I got assigned to Guam and figured that would be the end of it,” Ray frowned as he recalled the memories. “But about a month after I arrived, your mother showed up.”

Harmony nodded. “I told Ray I didn’t care what our parents thought. I wanted to be with him. That was the first night we made love and we knew that it wouldn’t be the last.”

“Over the next couple months, I tracked down a guy who helped forge some papers so we were able to change our names. After that we got legally married so Mom could travel with me whenever I got redeployed and we’ve been together ever since.” Ray took Harmony’s hand. “We’re telling you all this because we don’t want you to have to go through the same things we did. We’re not going to run you out of the house. And we don’t want you running off and cutting all ties with us.”

The twins looked at their parents and processed the information. They looked at each other and smiled. “So this means we can be together without worry?” Caitlin was practically shaking with excitement.

“Well, you might want to be a little more discreet.” Harmony frowned. “While we’re fine with it, plenty of other people won’t be. I’m not sure what your friends thought of today’s discovery.”

“Meagan already knew,” Leon offered. “And I think Madison was pretty understanding.”

“Be that as it may,” Ray added. “Don’t go throwing your relationship in everyone’s face. Take it slow.”

“But feel free to ask us any questions,” Harmony was quick to add. “Now, unless you have something pressing, why don’t we get back to being a normal…” Ray coughed and Harmony squinted her eyes at him, “…normalish family and spend our last day doing something together.”