Fern and I sat on an inflatable two seater air chair, with her leg smooth leg laying over mine, exposing the dried cum on her other thigh, vagina and buttcrack, eating our stew. Dad, Mum and Paige were opposite us, sitting on singular fold up chairs, eating theirs, with the fire between us.
"Mom, Dad?"
"Yes, Fern?"
"Could Matt and I continue sleeping in the same tent?"
"I don't see why not, Honey," answered Dad.
"Thank you."
Paige had a frown starting to grow on her face, which, mothers naturally and instantly take notice of.
"What's wrong Paige? Don't you like the food?"
"No, no... the food is fine..."
"Then what's the matter? Tell us, we don't want anyone to be upset on this trip."
Paige put down her spork and stared into nothingness, obviously fighting with herself. Finally she found the words.
"Why do Matt and Fern get to have sex?"
"Because they Love each other and care very much for each other- more than in a sibling way. And they were two nudist teens alone for an extended amount of time with no sexual relief for over a week beforehand. Things were bound to happen."
"If they can have sex with each other, then can I have sex with them?"
"Your Father and I will talk about it."
"Fine." Paige muttered into her stew. Fern started to run her pussy slowly against my leg, signaling that she was horny again.
"Not now, Fern, really?" I muttered to her out of the corner of my mouth. She subtly nodded, while staring into my soul with her puppy dog eyes. I put my hand on her thigh, gave it a quick squeeze and whispered;
"Later." She gave a small 'hmph" and continued eating.
Once everyone had finished eating, Mom and Dad went for a walk to talk, Paige went for a clean in the lake, while Fern and I went back to our tent so that we could fuck for the fifth time that day. We tried to be as quiet as possible, to make Paige not feel left out, but maybe me fucking her as hard as I could doggystyle wasn't the greatest idea. After another load of my semen had dribbled into her, we were about to leave the tent when our parents had came in.
"Sorry to interrupt.." started Dad,
"But we have to have a quick word with you." Finished Mom.
"Is this about Paige?" Fern asked.
"Yes, it is. We were wondering if you two would be OK with her joining you? She is of age, and on the Pill. so there would be no pregnancy issues." stated Dad.
"I'd be fine with it, but it is really Fern's decision, and I don't want to do anything she doesn't want to."
"How very thoughtful of you Matthew. What are your thoughts, Fern? Or do you need some time to think?" asked Mom.
"Hmmm, I guess it would be okay... I'm not bi or anything...it'll mostly be Matt that's engaging with her... as long as it's only Oral sex and Masturbation. Could I just have Matt for the night and then she can join us tomorrow?"
"Of course Darling. Would you also like to share a tent with her?"
"No, I just want it to be only Matt and me during the nights. We can share him throughout the day, but at night, he is mine."
"Ok Honey. We will tell her in the morning then?"
"Good with me," I replied.
"Okay, have a good 'sleep' then, kids." Dad said with a smirk as they left the tent and zipped up the door. I propped my head onto my hand and turned to Fern.
"I take it we're not going to get any sleep tonight, then?"
She replied with: "Not in your wildest dreams." as she swung a long leg over my groin, straddled me, laid down, chest to chest and kissed me hard. We made out for about ten minutes before Fern sat back up for some air. I reached up and started to fondle her boobs as she impaled herself onto my dick. She leant back, with her arms clutching my legs for support, she started grinding her clit against me, gyrating her hips, and bouncing up and down. She had three orgasms before I felt the need to build up in my balls. I started to hump her back as we both approached our orgasms.
"Come on, Matt! Fuck me! Fuck me! FUCK ME!" Fern screamed as she experienced a truly massive orgasm. I then had my own climax and threw (so far) my biggest load ever. Her eyes rolled into the back of her head as she flopped onto me, barely conscious, with her head on my chest, gasping for air. I put my arms around her waist and pulled her in closer to me. My dick slipped out and I felt the amount of my cum that was flowing out of her was ridiculous, like a river. I held the almost unconscious Fern for about 20 minutes before I realized she was lightly crying.
"What's wrong Fern?"
She sniffled back; "Nothing."
"You're crying. What's up?" She sat back up to look at me.
"That was quite possibly the best orgasm I've ever had. And it came from my younger brother. These aren't tears of sadness. I'm crying for joy."
I pulled her back down to me and hugged her with all my might, while she cried heavily into my neck. I started to rock side to side, clutching onto each other as if our lives depended on it, her tears rolling slowly down my shoulder. How long we were like that, I do not know. It could have hours, or minutes. Finally, I whispered in her ear:
"We should get cleaned up. You especially."
"I don't think I can walk."
"I can carry you, you're not that heavy."
"Oh, Cheers." she replied sarcastically.
I grabbed a bar of soap and a waterproof flashlight, gave them to Fern, opened the tent, scooped her up, one arm under her knees, the other, across her shoulder blades. She turned on the light and shone it in front of us, guiding me to the water. I lightly grazed one of her nipples with my fingers and I felt her shudder. I threw her into the air ever so slightly to re-adjust my grip on her. She let out a quiet little squeak as I did this. Now I had a hand cupping her left boob and my other hand on the inside of her left thigh, close to her vagina. I started to gently knead her breast as my foot entered the cold water. I continued walking till the water was belly-button deep.
"Do you think you can stand?" I asked Fern quietly. She shook her head. I walked a bit further in. She gave another small squeak as the water touched her wonderful butt. I stopped when the tips of her erect nipples were just below the surface of the water. I watched her as she started to wash herself. She spent a minute trying to get all of my semen out of her and even longer getting the dried cum from between her buttcheeks. Once she was all squeaky clean, I asked her again.
"Do you think you can stand now?"
"Yeah, I think I should be able to."
"Good." I said as I let go of her. She squealed in surprise just before her head went under. She came back up spluttering and wearing a glare.
"How dare you do that to me? I'm your girlfriend!" she grinned.
"Going out now, are we?"
"We might as well. What we are doing is more than just sex. I... I'm in love with you."
I walked up to her, put my hands on either side of her wet face and whispered;
"As am I." She stretched up and kissed me harder and more passionately than ever before. Truth is, I am in love with her. Who wouldn't be? We broke apart and she asked me;
"How are we going to do this?"
"Do what?"
"Pass of being boyfriend and girlfriend, dummy. We can't go around kissing in public, our town is quite small, someone who knows us is bound to see us."
"And you're off to College soon."
