The Swap

What is it about a vacation that gets you so horny? All those mostly-nude bodies; the sun and surf conspiring to wear you out in the most delicious way. Throw in booze and good food and it’s only natural to crave one of the finer pleasures in life.

There I was, on the beach with my good friend Julian and our two sons. Our boys were in their element - flinging their bodies into the surf, running up and down the beach and boardwalk. And, it was increasingly obvious, flirting with any girl or guy who happened in their path.

It was Julian who'd commented on how the two of them had spent the last two days scoping out seemingly anyone with tits and a tan. “We’re both bi,” my son Drew said.

That was news to me. “Did you know that?” I asked Julian after the boys had gone back down to the water to body surf.

“I had an inkling,” Julian said, looking at his son Brett gliding on a wave. He gave me a smirk. “Guess it doesn’t skip a generation.” I laughed. Like Julian, I’d only recently been considering myself bi. Julian was the only guy I’d ever done stuff with, back in college. During our marriages we’d stayed friends. Then, about a year after I’d left Drew’s mom, Julian had separated from his wife. And one drunken night we decided to pick up where we left off. 

When he’d suggested vacationing together I didn’t hesitate. Our boys had always gotten along. Julian and I were in the early stages of something, both of us navigating our shifting sexualities. To that end we were still keeping things discreet, and had agreed beforehand that Julian and his son Brett would take one bedroom in the beach house while Drew and I would take the other.

“Do you think they’ve fucked?” I said to Julian.

“Hard to say…” he said. “But I’m sure they’ve at least blown each other.” And we laughed. I looked at our boys crashing around in the waves, having the time of their lives. Drew looked a lot like me, fair and lean, while Brett resembled his dad, all thick muscle and bulk. More than once I’d caught myself checking out Brett’s butt, as neither of our boys’ swimsuits left much to the imagination - the current style, I guessed. 

The thought crossed my mind that I’d been a prude not to share a room with Julian - hell, our boys probably knew that we were fucking. Then I wondered if our boys would be getting up to had they been sharing a room…

I broke from my thoughts to notice Julian looking at me - specifically, at my lap. I had a throbbing hard-on and hadn’t even realized it. Julian smirked. Then he started to get up. “I’m gonna go, uh, grab an extra towel from the house. Maybe you need to come too?”

“Yeah,” I said, immediately getting the message. “I’ll tell the boys. Could use a quick dip anyway,” I said.

“Yeah, you could,” Julian said, shaking his head at my boner.

That was one of the hottest fucks we’d had yet. Julian was waiting for me in the kitchen as soon as I got to the house, his trunks pulled down over his round, fuzzy butt. I dove my tongue right inside to press into his salty hole and then he stuffed my cock into him. I unloaded in him a few minutes later. We’d both needed it.

Before dinner that night, our boys had convinced us to partake in some edibles. We were all pretty stoned, ordering way too much food at a big, loud seafood place and laughing our asses off. We got a bucket of beer, too. What can I say? They were technically adults and we were on vacation.

“We know you guys are fucking,” Drew came out with at one point. It was sort of my fault because Julian and I had been grilling both of them about being bi.

“That’s none of your business,” I said, but Julian just laughed at my tone of indignation, so I had to laugh, too.

“Yeah you guys should just take one of the rooms,” Brett said.

“Well, thanks, but I don’t think you guys want to hear two old men fuck across the hall,” I said.

“I wouldn’t care,” Brett said with a raised eyebrow.

“Yeah, we don’t have any hangups,” Drew said.

“You guys are a lot more experienced than I thought,” Julian said, shaking his head at me then tipping back his beer. We’d learned more about our sons in the last eight hours than we’d had in the past two years, it felt like.

Something had shifted that night. I woke up at some point to my son rustling around. As usual I had an aching boner. Drew left the room and I laid there, half-asleep, expecting to hear him go into the bathroom, but instead heard the creak of the stairs. Then I thought I heard Brett walk downstairs, too.

I had an idea of what was happening, and found myself stroking my cock under the covers. I was getting into it when I heard the stairs creak again. Both boys were coming upstairs.

I took my hand off my cock before the door opened.

“Mr. G?” I heard. Brett’s voice. I opened my eyes. He came over to the bed. He was in his boxer shorts, his tan muscled body and hairy chest looking perfect in the moonlight. “Is this okay?” he said, and went to get into bed with me.

“What’s going on?” I said, sitting up. Brett kept going, getting under the covers next to me. Then, after a moment of hesitation, he reached for my hard-on. I let him. He stroked it and I took in my breath.

“Jesus, Brett - what are you doing?” I said.

“Relax, Drew and I talked about it,” Brett said as he stroked me. The shock of it was still there, but began to fade as gently stroked me. This was crazy. But, on some level, I’d been fantasizing about it.

“Where is Drew?” I said, though I well knew.

“Across the hall doing the same thing,” Brett said with a smile, sliding his hand deeper down into my briefs to feel my balls. “This is okay?” he said.

“Jesus,” I said, half from the shock of the situation and half because having my balls fondled always makes my brain scramble. That was when I heard Julian’s voice from down the hall.

“Uh…Kevin?” Julian said, sounding as unsure and turned-on as I was.

“Yeah?” I said, laughing. Julian laughed too. “It’s okay with me if it’s okay with you,” I said. Brett was smiling.

“Alright man,” Julian said, and then his voice was immediately muffled. I wondered if it was because he was making out with my son.

“God Dad’s permission,” Brett said, raising his eyebrows as he worked my cock. He was smiling with that handsome boyish face that looked so much like his Dad’s, and I just went for it. Pulled his face to mine and started making out with him. Felt up that young, fuzzy muscle body that I’d been admiring since we got there.

I pulled back the covers and shucked off my briefs. Brett climbed on top of me as we continued to make out. When I grabbed his butt his tongue went deep into my mouth. “Fuck, Mr. G,” he said. And leaned into my ear. “I want you to fuck me.”

“Oh man,” I said, my cock pulsing against my stomach. Brett reached back to stroke it as we kissed. I’d never felt so reckless in my life. Brett was so sexy, all boyish masculinity, with a fresh swatch of hair on his jaw and a smiling baby face. He kissed good, too. 

“I want to suck your cock,” he said, and I nodded. He began to work his way down my body, kissing my chest and nipples and running his tongue down my stomach. He lapped at my shaved balls, sucking each one into his mouth, then lapped along my shaft as he smiled up at me.

The incongruity of it: my son’s best friend, a kid I’d watched grow up, down there licking my hard cock. And the total taboo of hearing my son’s surprisingly deep and masculine groans coming from across the hall. I had a pretty good idea that it was a “like father, like son” situation: Julian is a pretty voracious bottom, and I’m just as much of a top. I could imagine Julian in the same position as Brett was now, his big muscled frame nestled between my son’s legs as he licked and sucked my boy’s cock. What did Drew’s boner even look like? And why was it turning me on so much to imagine? It all seemed part of the same horny stew so I just went with it.

Brett was sucking me deeply now, an inexperienced blowjob but that didn’t matter much when I could look down at his cute young face, all concentration as he worked on taking my entire fat cock down his throat. After a while I pulled him up to me and made out with him while my cock throbbed against his ass.

I had to get at that butt, so I laid him on his stomach and got between his legs. It was glorious - a facsimile of his dad’s with the added lift of youth, two firm cheeks dusted with dark hair. I pulled them apart to reveal his pink, hair-ringed hole. Then I gave it a good lick before I dove my tongue inside. The boy didn’t moan so much as whimper, in a deep-throated manner that was impossible to distinguish from his dad’s, which drifted in from across the hall like a dream. As I rimmed Brett, their moans entwined and harmonize, and I had the feeling that my son was doing the same thing I was, darting his young tongue into Julian’s muscle-dad butt, licking where I’d just licked earlier that day.

“Oh fuck that feels so good,” Brett said. I pulled my tongue out and looked at the spread ass before me, so round and beautiful. I dipped the tip of my finger into him and it squeezed it tight before relaxing. I slid the rest inside. “Oh yeah, oh yeah,” Brett said.

“You want me to fuck you?” I said.

“Please, I love to get fucked,” Brett said.

“Suck my cock some more,” I said. I laid back and had him sit on my face so he I could eat him out while he sucked me. Then I spun him around and let him work his ass on my cock. The pained look of pleasure on his face was so good. But he didn’t have any trouble taking it, and even as the fat base of me speared into him his cock stayed pointed at the ceiling.

Here I was, fucking my son’s best friend while my son fucked his dad just down the hall. It was as wild as I’d ever gotten in my life, and I had to admit I felt a little reserved about it. As much as I wanted to bend that boy over and fuck the life out of him, the thought of Julian down the hall made me feel a little - I don’t know, protective I guess. So I let him ride me, and just reveled in the sight of his perfectly cut body writhing as he worked me in and out of himself. Sometimes he would reach down and stroke himself as he rode me. And he’d occasionally look into my eyes but mostly he seemed to be in his own world - which, honestly, was how his dad liked to fuck too.

I ran my hands up his young body. From Julian’s grunts and Drew’s moans I could tell they were fucking too. I thought of Drew’s handsome frame on top of Julian, my son’s hard cock spearing into that hot, mature ass. I knew it was wrong but the wrongness was turning me on. I found myself getting close as Brett rode me harder.

“I’m gonna cum in you Brett if you keep riding me like that,” I said.

“Yeah, cum in me!” he said, bouncing that tight ass up and down on me. He had his handsome face turned up to the ceiling and was jacking himself furiously. I held onto his hips as I began to unload into the boy, my cock enlarging with each shot that went deep inside of him. A moment later he began to unleash a load of semen all over me, thick spurts that covered my torso. 

Then he collapsed onto me. We lay there, heaving, listening to the sounds across the hall - Julian’s grunts getting more gutteral, even a slap that I had to assume was my son using Julian’s ass like it was his fuck toy.

“Gonna cum in you!” I heard Drew say - words I’d never thought I’d hear from my boy’s mouth.

“Cum in me, Drew, fuck me,” Julian said, and as we listened Brett continued to ride my cock which was still inside of him. By the time Drew and Julian’s moans reached a crescendo we were both still hard, fucking and making out.

Laughter from across the hall broke the spell. Brett extricated himself from me and got up to pull on his underwear; I did the same. I chanced to duck my head into Julian’s room - they were both getting dressed, and Julian was wiping off what I had to assume was my son’s cum from his stomach.

“Well, shit,” I said. Julian shook his head and grinned. Drew glanced up at me, a sly smile on his face. “I guess I’ll take my boy back, now.” 

“That was fun,” Brett said, coming around me.

“No shit,” Drew concurred, and the boys slapped palms and nodded at each other. I took hold of Julian’s face and gave him a kiss.

“We can talk about it in the morning,” Julian said, to all of us.

“Yeah let’s get some sleep,” I said. “Come on, Drew.” I gave Julian and Brett once last look before I shut the door - they were getting in bed together. The natural order had been restored, at least to some degree.

“Was that too crazy, Dad?” Drew asked me after we’d got in bed. I saw his concerned expression in the moonlight. The sound of the surf rumbled outside. “It was both of our ideas. We got really horny talking about it earlier today and just went for it.”

“It was a little crazy. Maybe not something we should do again. But I enjoyed it,” I said.

“You fucked Brett, right?” Drew said. The catch in his voice made it clear he was turned on by thinking about it, and I wasn’t sure how I felt about that. But then I was getting turned on, too.

“I did,” I said.

“Doesn’t he have the best ass?” Drew said. I noticed him adjusting himself under the covers.

“It’s a lot like his dad’s,” I said. “Did you fuck Julian?”

“I did,” Drew said. “That’s okay, right?”

“Yeah,” I said. “I guess we’re both tops, huh?”

“Well, I’m vers. Brett too, pretty much. He bottoms more, though.”

“How long have you guys been hooking up?” I said.

“Since sophomore year,” Drew said. “But we didn’t, like, go all the way until this year. And we’re not like boyfriends or anything. More just fuck buddies.”

“Well I’m glad you guys are friends,” I said.

“I’ve always thought Julian was hot,” Drew said. “Did you used to think about Brett?”

“Sometimes,” I admitted. Drew’s hand was moving quite a bit under the covers. I was hard as a rock. But things had gone far enough for one night.

“Okay, calm down,” I said to Drew in my best 'dad voice'. “We need to get some sleep.” Drew laughed and took his hand away.

“Okay,” he said. A pause. “Can we do it again though? Tomorrow? Or before we leave?”

“Maybe,” I said. “Now get some sleep.”

“Okay. Night, Dad,” Drew said, and turned over. I lay there, cock throbbing. Maybe, I’d said. But there wasn’t a lot of doubt in my mind. The question was how far I’d let things go.

To be continued...

All characters are age 18 or older.