Editor's note: this story contains scenes of incest or incest content.
*
The next few days were a whirlwind; we were all horny pretty much nonstop. My brother Will and his son Nick showed some incredible stamina. The three of us took turns on my son Leo's hole, determined to stretch it as much as possible before the full moon.
As I was drifting off to sleep one night with his slim young body in my arms, I told Leo more about our nature. I explained to Leo that as the full moon approached, he would gradually lose control over his form and become a beast, unable to hold back his desires to feed and fuck. He would become dangerous to himself and others, risking being seen by humans. The only cure was sex with the other men of our clan.
"That's why every full moon, the whole clan gets together up at the lake. For five days, we help each other out, and celebrate our manhood and our desires. Your great-grandpa Nathaniel owns a big chunk of land out there, so it's nice and private and nobody disturbs us."
Leo was quietly contemplative for a bit. He stroked my arms that were wrapped around his chest, and looked out the window where we could see a corner of the waxing moon.
"How many are there in the clan?" he asked at last.
"With grandpa Nathaniel and all of his descendants, you are number seventy." I kissed the back of his neck.
"Wow... that's a lot."
"Yup. Grandpa has six sons of his own, and their sons, and their sons too. Now my oldest cousin's oldest son has a son of his own, so the fifth generation is started. Are you nervous about the big crowd?"
"A little. There's going to be so many people there I don't know."
"Nah. Not really. Remember, follow the scent. Nobody there will mind if you get up close to them to get their smell. In fact, it's expected. It's how we say hello in our family. As soon as you catch a man's smell, you'll know how you're related and feel at home with them. Just like your Uncle Will, and Nick. And they'll get a smell of you and know you're my son, and they'll welcome you in with open arms."
"I think I'd like that. And everyone is going to be having sex?"
"Yes. And you realize, you're going to be new to the family. Everyone is going to want to have sex with you."
"Oh wow... all of them? That's a lot."
"Yup. That's why we've been getting you ready for it. It's tradition in our family for everyone to give the newest son our seed. It's important. Our seed bonds us together as a family. Once you've had everyone's inside you, you will feel it."
He looked worried. "That's a lot. What if I can't take it all?"
I laughed and reached down to jiggle the buttplug still inside him. He'd graduated to the medium-sized one now, and loved it so much that he insisted on wearing it to bed.
"You're my little slut, son. You are going to do just fine. It's natural to be nervous, but just remember that everyone else in the family has been through it too."
"Including you, dad?"
"You bet, son. I remember it well. I thought it was going to be difficult, but I loved every moment of it. I had so much cum inside me I could feel my belly jiggling when I walked." I laughed. "Then when grandpa Nathaniel put his cock into me, I thought it was going to split me in two like firewood. But he was gentle, to start with. When he started to move it back and forth inside me, I fell in love with him right then and there."
Remembering all of this had me hard again, and I could feel my cock pressing against the base of the plug inside my son. I contemplated pulling it out and satisfying myself once again inside him, but decided I was too tired. I pulled him tight, feeling his wonderful little furry body wrapped in my arms. I kissed his bearded cheek and was asleep a few seconds later.
The next morning, as we gathered for breakfast, I could tell that the moon was heavy in the sky. Everyone was tense, their breathing short and their eyes darting around. The animal nature was beginning to surface, and we would need satisfaction if we were going to stay in control.
Will's already long beard looked like it had grown another two inches in the night. In his bleary state he'd dropped several crumbs of toast and eggs into it.
Leo, barely aware of what he was doing, leaned over and started snacking right out of Will's beard. Will laughed, and Leo realized what he was doing and blushed bright red.
"It's okay, kid," Will said jovially. He pulled will close, face to face. "You're thinking like an animal, trying to groom. This is your first full moon, it's going to be especially hard for you. When you get urges like that, don't be ashamed. Just look to your father and I, we'll help you through it."
Leo nodded, and Will met his lips for a reassuring kiss.
After breakfast, we packed up our necessities for the land. We wouldn't need any of the camping gear; everything we could need would already be there if we wanted to rough it. And if we wanted some luxury, Grandpa Nathaniel's home was large and he would be happy to have us. Likewise, my father had his own cabin out at the land, and I usually ended up staying there.
Before we got dressed, I had Leo lay on his back on our bed and slid the buttplug out. His beautiful, tight little hole was gaping and pink now, and the sight of it filled me with pride and lust. Nick, Will and I took turns giving him a quick ride while the other two sucked him off, and after we'd spent our needs for the moment I found the largest butt-plug and slid it in. It was enormous, at least as big as my father but not quite as big as my grandfather. Leo gasped as the thickest part of it stretched him even wider yet, and when the neck of it landed home and the base of it lodged firmly against his ass, the look of satisfaction on his face was priceless.
None of us showered before we left; there was no point. We were all oozing phermones, and when we'd gotten in the car together the concentration was enough to drive us to distraction. As the front-seat passenger, Will dutifully leaned over to give me head as I drove. The feel of my older brother's warm, wet mouth around my cock was comforting. Without it, I would have had a hard time driving. It was a four hour drive, too far to make it without giving each other release.
About an hour into the drive, we were passing through the foothills and up towards the mountains. I looked in my rear-view mirror to see Nick sucking Leo; the sight of those two hairy young men, handsome as fuck and lost in lust, brought me to my second orgasm. Will gulped my load back happily; I rubbed his beautiful bald head in appreciation.
Halfway through the drive, Will and I stopped at a rest station and switched as usual. Now I was the one who got to give him some release; I unzipped his shorts and teased out his already-hard dick. I got to work, my nose buried in his soft bush. He was well-endowed, but my experiences sucking every cock in the family had taught me how to take the entire thing down my throat.
