Big Boy Undies 7

 

 

Ever played a prank before? Mac had. Lots of times. It ran in the Grogan men DNA. Never mean or cruel, just things that would make both father and son laugh or give a good freight. That’s why Mac hid under his dad’s bed, there was enough space and behind the dresser was too obvious. The closet? Too uninventive. In truth, he had hidden everywhere at this point, but the bed just couldn’t be beat. Under the bed he could pop out, scare his dad and run out before he was caught. It was procedural at this point. 

As he crawled under this time, getting into position, pajamas dragging on the wood floor, he spotted it. Laying there under his dad’s bed, on the opposite side of where his dad usually slept, was grey fabric. Mac grabbed at it but couldn't quite make it out. For all the talk his dad gave him about keeping a clean bedroom, it turned out his dad could be messy and forgetful too. He waited and listened. Didn’t sound like his dad was coming. He slowly got from under the bed to see the item in the light. 

Underwear.

That was obvious, but it didn’t look like any underwear he’d seen. He wore briefs. His dad wore boxers. What was in his hands felt like briefs but looked like his dad’s boxers. As was a son’s right, he had rummaged through his dad’s drawers multiple times, whether playing or just being nosey. He’d never once spotted these. Did his dad keep them hidden? Well, Mac had seen them now. The longer he held the underwear, the more curious he got. What did it feel like to have them on? He had played in his dad’s boxers before; nothing special. But these felt different. Mac let his curiosity guide him, taking off his pajama bottoms to slide into them.

Once he got them on, Mac felt good, really good. Better than he ever did in his briefs and better than his dad’s boxers. He didn’t need to hold them up like he did with his dad’s boxers. The elastic waistband on them snapped to his waist even if the rest was roomy. A strange warmth flowed out from the underwear into him. There was a pop then a crack, Mac thought his dad was coming in, but the door was still closed. It wasn’t until his viewpoint was yanked up that he realized the sounds were coming from him. His body was changing—growing—rapidly. It started with a few inches in height, then got his muscles in on the action. Mac wasn’t just growing up; he was growing out. The drifting of his shoulders further started it, broadening his back allowing them to round as his traps grew stronger. Then his pecs bubbled out, spilling into the open, no longer one cohesive unit with the rest of his torso. His pajama shirt was split open, two tragic halves dangling on to his sides. It wasn't enough, abs ingrained their own importance onto his body further disrupting its unity for preference of grooves and divides.

The valley between Mac’s pecs grew deeper as his arms bulked, feeding directly from the shoulders. The pajama halves fell off. Light brown hair cropped up over his forearms and his legs’ and spine pushed him higher into the air. The same hair migrated to his legs before his thighs doubled, then quadrupled in size. His calves were no different, experiencing the same changes, expanding with newfound power. The change in his feet was undeniable, stretched across the floor, morphing into true heavy stompers, supporting his new weight. A tension in his neck released, a thickness had taken over. “GUH!” the first sounds of his new voice escaped. Far richer and deeper than any sound he made before. Mac’s face was restructured, soft and rounded features removed for solid harder edges. A beard emerged, dark brown chocolate, that swallowed up his lower jaw and upper lip and yet made his jawline appear all the harsher.

Then came the sudden pressure between his legs, as his cock filled out, with two weighted balls churning with seed behind it. Mac knew his cock wasn’t even hard, it just hung heavy, but it was more packed than anything he’d seen in his life. A pump of his butt gave his glutes the workout they needed to firm out to fruition. The hat and necklace appeared out of thin air. One second not there, the blink of an eye on his body as if they always belonged there. Mac stared at himself in the mirror. He was older. Even his thoughts were more complex. The strength of a man flowing through his veins. He looked it, he felt it. An older Mac, who still looked like himself but repackaged as a man. He didn’t resemble his father as much as he would have expected. Rather, he looked more like…Mrs. Derabond’s nephew: Tony.

 

 Mrs. Derabond lived two houses down and would sometimes ask her nephew to do chores for her. He was a young handy man, between his late 20's and early 30’s, often taking on odd jobs for her. Mac’s dad had once asked him for help with their own house and the man agreed to help out. They were close in age and got on well.

There were thoughts and memories swirling around in Mac’s head. Were they new or old? And a different face when his eyes looked in the mirror. 

Images and flashes of his dad and Tony making out, winding up in bed together, multiple times. And this last time Tony was in such a scramble to respond to his aunt, he left his underwear at the side of Mr. Grogan’s bed, accidentally kicking it under on his way out. Mac was in Tony’s underwear, not his father’s.

The bedroom door opened as Mr. Grogan stepped inside, freezing upon seeing the Tony-sized Mac in his room. The father didn’t look angry or scared; he just curiously pointed. “You’re one of Tony’s friends.” he gestured to the hat and necklace. “Did he set this up? I thought he said tomorrow.”

“Set this up, kinda.” Mac said with a gruff voice. “By not picking up his stuff!”  his thoughts finished.

“Shoot, I don’t know how long we have before my son gets up.” His dad poked his head out of the bedroom, then came back in and locked the door. “We should have time.”

“Wha—

His father’s lips were upon Mac’s own. The man’s tongue dove inside Mac’s mouth. Mac’s eyes widened, but his tongue already knew what to do. Tony’s skills had imprinted onto him and were going into action. His dad’s hands landed on Mac’s back and migrated to the small of his waist, pulling him in closer. Their cocks brushed against each other, his dad’s cock inflated rapidly and Mac’s wasn’t far behind. It was like acing dance moves to a song he’d never heard.

Mac had never seen this side of his dad before. There was happy, playful, disappointed, sad, and of course the twins stern & strict. This was ‘ready to fuck’. His dad grabbed the back of the underwear pulling them down, just below the cleft, so he could knead the cheeks like dough out in the open. Mr. Grogan’s hands, still larger than Mac's, easily grabbed a large portion of the glutes. 

No space was left between their bodies. His dad’s chestnut chest hair pressed into Mac’s supple smooth pecs. A tickling sensation as four mounds of muscles competed with each other. Mac’s beard, one he didn't have—couldn’t grow—seconds ago, brushed against his father's beard and enticed Mac for more. This was how his dad and Tony preluded their escapades prior, and yet as Mac and his father existed in the space, something new was taking shape: evolving. His dad’s kiss became more tender, less hasty. The hands on Mac’s ass slid up to wrap around his back. There was no rush for time, they had all the time. Their story wasn’t one of a backed-up single father trying to dump his nut in the neighborhood stud. It was similar, but not close.

They opened their eyes at the same time. Lips parting under his father’s lead. Mr. Grogan looked at the man in front of him; his thought process was clear as day. A kiss that started like Tony’s had morphed into something more: Mac’s own. Mac could sense the change within himself too, but more importantly, he saw the lust in his father’s eyes, not vanish, but giving way to a soft look of love. His dad rested his fingers on Mac’s beard, a gentle placement and brushing. “You know, I didn’t get your name…”

“Dad,” Mac let out.

“Dad?” Mr. Grogan blinked. “Oh, so you’re into that? Okay, no names, I can work with it.” The man nodded his head, as if assuring himself. He walked over to the bed, pulled down his pajamas, kicked them off to the side, then sat down, legs spread, cock hard. He patted his thighs: An invitation. Mac slowly walked over and once close, his dad reached out and dragged him in by the front waistband of his underwear. Then his father yanked the underwear down fully. A beautiful fat cock twitched in the air, balls nested perfectly underneath as heavyweights, surrounded by a brown bush.

Mac saw how his cock was very much like his dad’s, huge lengths. The only difference came from Tony’s contributions. While his dad had decent mass, Mac’s cock looked overfed, girth more akin to a small arm. His dad placed his foot on the gray boxer briefs, which allowed Mac to step out of them. “Come here, son.”  Mac climbed onto his dad’s lap, not speaking. Lips found each other as their tips met. Just two men kissing, and one sex organ meeting its progenitor. Mr. Grogan placed Mac’s hand on their cocks. Warm flesh that felt pleasurably scorching under another’s gaze.

“You got a nice cock boy, looks like Daddy’s.” Mr. Grogan whispered, kissing his way up Mac’s neck. A bead of precum leaked out of his father’s cock and slicked them both. They kissed more. The man gave a small laugh, pulling away for a bit, “Sorry, your dad’s making things a bit messy here.” The precum was still going, Mac’s cock was getting soaked. “Let dad, take care of you.” He had Mac sit up on his knees over his lap. Mr. Grogan opened his mouth and took his son’s length inside him. Mac jerked when his dad’s tongue lashed against the underside of his cockhead. His dad moaned loudly once he got his mouth further down. A real struggle, compared to Tony’s mainly girthy cock. His dad was determined though and kept going swallowing more dick.

“Oh, fuck me dad…” Mac’s legs wobbled.

Mr. Grogan pulled off with a wet plop, “Oh, I intend to, but first.” This time he sank back down and went to the bush, throat opened, as Mac’s hand rested on his head. His dad’s hands gripped Mac’s muscle ass as Mr. Grogan force fed himself Mac’s cock. The sensation beat out every single memory Mac had of his dad sucking Tony. His father had never been this kind of cock hungry before. The man was slurping like his mouth depended on it. Mac watched in total awe of his dad, and when his dad looked up with those warm brown eyes at Mac, he lost it. Like Tony before him, Mac erupted inside of his dad’s throat. His cum escaped in multiple shots, as his dad moaned at the taste.

Making an unknowing show of swallowing his own grandkids all down, Mr. Grogan licked his lips “Fucking delicious.” He pulled off, kissing the cock head. “Look at this fat fuck, baby boy. Not even soft.” He lightly slapped the dick, as Mac writhed, before burying his face in Mac’s pubes and licking his balls. The cum factories were under a glorious attack by their father’s tongue, compelling them for more. They had more to give and then some, having been empowered to mimic Tony’s own big cum-filled stud balls. But Tony wasn’t here right now, and Mac could tell his dad didn’t even mind it.

Mr. Grogan wrapped his arms around Mac’s waist, before falling back with Mac on top of him, both laughing. An instinctual casual air had taken over, no thoughts about sons, or annoying aunts to run down the clock. Just the feeling that everything they needed was right in that room. When Mr. Grogan was ready; he flipped their bodies, so he was on top, with Mac underneath him. Their bodies ended up pressed together, with Mac’s legs around his dad’s strong build.

“We're really about to do this, son?” Mr. Grogan said for the roleplay as his cock opened Mac’s ass. The man’s furry dad tits bounced for distraction, as his dick made a new home in Mac’s insides. Memories were great and all but actually taking his dad’s cock was another beast entirely.  A member that happy fucked its way inside a new partner. Mr. Grogan’s lips found Mac’s mouth again as they made out. It took Mac a moment to register that alongside the coffee, the other taste in his dad’s mouth was Mac’s cum. The young man’s orgasm built up like a rushing wave as his father thrusted. Each pound, reminding Mac, his dad was about to deposit his brothers inside him. Mr. Grogan hadn’t grabbed a condom; he ALWAYS grabbed a condom. But for this, his mind didn't think about it. Mac saw the realization hit his dad in real time, unable to stop the thrust of his hips. The look sent Mac over the edge and his cock nutted mercilessly between them.

“Look at me, making my son cum like a hose.” he growled, but then stopped as the grip of Mac’s ass began to milk for what it was rightfully owed. Mr. Grogan collapsed, flooding Mac’s insides.

A few minutes later both men laid in bed naked, facing each other. Warm smiles of satisfaction were plastered on their faces. Mac had his hand on his father’s chest, tracing to his arms as Mr. Grogan was stroking Mac's cock, which was hard once again. 

“You and Tony are like the energizer bunnies.” The man laughed as he toyed with the dick, “But I’ll be honest Tony and I never had an experience like that. Usually, it’s a struggle to see how much time we have. I couldn’t think about anything else but getting inside you.” He fondled the plump balls, “Maybe next time, you can get inside me?” He reached over and slapped Mac’s ass before caressing it. Then he slowly got out of bed, “I have to go see if my son’s awake, strange I haven’t heard from him.” Bending over to step into his pajamas, he plucked the gray underwear from the floor.  “Huh, I think Tony has a pair just like these.” He looked up and narrowed his eyes “Is that weird? He’s not your cousin or anything, right?”

“Definitely not,” Mac said, still feeling the cool drool of his unborn siblings out his ass.

“So, now can I get your name?” Mr. Grogan arched an eyebrow tossing the underwear over. Mac caught it in the air.

“My name’s Mac.”

“Mac?” Mr. Grogan leaned forward, “That’s funny, that’s my son’s name.” He began walking to his door then froze. He turned and took another look at the man in his bed. Recognition lit in his Mac’s eyes, no doubt now seeing his own familiar features on the other man, “MAC?!?!”

“Hey…Dad.” The older Mac said, too well fucked to properly emote. He just dangled Tony’s underwear, gesturing if they weren’t his.

The understanding of what happened dawned on Mr. Grogan. No words were said. He stood in silence for a moment. Then his pajama bottoms began to rise in the crotch as he stepped away from the door, and slowly sauntered back to bed, where Mac laid.