Chris the Fox didn't need to daydream about having the best boyfriend ever; he was right there, by his side. Johnathan the Dragon was a world-acknowledged bodybuilder with tons of awards to prove it, but you wouldn't need those if you saw him for yourself. The dragon was in a league of its own, a hyper-sized amount of muscles that rippled from just moving, and oozed with power. It made Chris drool every time he returned from competition, not helped by the fact that there was no need for imagining those muscles since they bulged under Johnathan's tight t-shirt and thong he wore all the time.

Johnathan, after catching one of Chris's stares: "Wow... again? I must really be a beast to you, huh?"
Chris nods his head fast. "Oh yeah. You always look like you're a flex away from hulking out."
Johnathan: "You want a flex show, fox? Want me to flex myself out of these tight clothes?"
Chris's hand was already going into his pants, which had a good tenting of fox cock. "Fuck, yes."
Johnathan smirks as he raises his beefed up arm and fingered his nipple around to tease the fox, making his erection a full one. "Then enjoy the show."

Johnathan murrs as he started from his calfs, making them get defined. Soon it travels up his thighs, showing off thier definitions and making his blood vessels stick out. He makes his legs come together and apart, so Chris sees all the muscles flex. The fox moans in response, pre covering his cock he was fapping. The dragon responds by turning and flexing his glutes hard as steel, bulging hard in the thong he was wearing.

Chris moans out: "Make 'em clap, daddy!"
Johnathan does as asked, making them slam together with a loud, thunderous CLAP!
Chris mouns out loud, and can't hold back any more as he creams a load of cum from his cock, hard enough that cum leaks from the front of his jeans. It takes him a moment to calm down so he can pay attention to Johnathan again, ready to see what he'll do next.

Chris: "More, daddy!"
Johnathan smiles as he next flexes out his back, from his trapezius to his deltoids to his rhomboids and all the rest. They all bulged out perfectly like a christmas tree spreading out its branches.
Johnathan: "That's the award winner, right there."
Chris moans, rock hard agian. "It certainly is daddy."
Johnathan's wings were nothing to sneeze at either, as he flexed them out to their full lenght, the tips smashing holes in the wall. They were a sight to behold with how thick the muscles were. Together they made a solid wall of muscle, thicker and stronger than one made of solid bricks.
Chris moans out: "FUCK!"

Johnathan turns, putting his legs together, and gives a side pose that shows off a pec bulging in his shirt.
Chris reaches up and touches the nipple, finding it harder than a rock. The power coming off it travels down Chris's arm and body and makes him orgasm again in his pants. More makes it through his pants, soaking them inside and out with warm cum running down them. Chris shivers as he tries to calm down, but wants more.

Johnathan rebukes with a vacuum pose, pulling up his stomach so that his pecs bloat out hard enough to rip free of the confines of his shirt, making it a shredded up vest along his sides. Chris could also see those 8 pack abs get defined so deeply, those washboard abs glistening in sweat. What was left of his sleeves explode to threads as he does a double bicep pose, putting those billions of muscle fibers into overdrive as they bulge out on his arms. They grow a few more sized and pop like cannons, and the air shot from them makes holes in the ceiling, showing the night sky above. He spreads his wings to the side and leans forward on a flexed legs, so he could give the low flex to Chris.

He was low enough that the fox could reach up and play with the dragon's nipples, pawing them all over, feeling how hard they were. His pecs were just as hard and swole with muscles from the flex.
Johnathan: "Mmm, warm hands. Go on, slut, cum for daddy."

Chris doesn't need much as he goes on, just nutting himself so much and fapping so aggressively that it makes his legs so thick and slippery with cum, his pants and underwear fall down into the cum puddle below him.
Johnathan comes over, standing behind the fox and feels the fox's lean chest under his shirt. It barely take a flick of his finger to send a large RRRRRIIIIIIPPPPPPP up the cloth, shredding it to make him fully naked, orgasmatic mess. It doesn't help that the dragon plays with Chris' hard nipples, keeping him on the peaks of orgasm. He feels the fox's cum covered cock throbbing and sticky with a neverending ejaculation.
Johnathan: "Damn, do you still have more?"
Chris: "So much, daddy!"
Johnathan murrs as he squeezes Chris' cock tight to pause the orgasm, building it up. "Wanna help daddy grow?"
Chris' eyes widen in glee as he moans out: "YES!!! I wanna make Daddy grow bigger!!!"

Johnathan chuckles as he lets go of Chris' cock, letting him cum like a fire hose again. He stands back, and gives a mighty squat, flexing his ass and thighs so hard that his thong explodes to nothing and his cock spears the wall in front of him. The dragon spreads his cheeks apart wide enough that his tight dragon donut was spotted by the fox. Like some kind of magnet, Chris' cock was immediately pulled into Johnathan's hole, going in as deep as he could and started releasing torrents of cum into it.
Johnathan: "Oh yeah, I'm gonna milk you dry, slut."

The dragon's hole squeezes and tugs on the fox's cock with such intensity, drawing out every load of cum. Chris held onto dear life to those glutes so he wouldn't be sucked into that powerful hole as well. They moaned up a storm as the dams worth of spunk makes Johnathan start expanding in size, muscles rippling and throbbing and veins bulging and popping with even more power. His armpits and crotch were covered in hair from the testosterone boost. He grows taller and thicker, the floor creaking below and he has to bend forward so he doesn't break through the ceiling yet. Space does become limited though as those meaty muscles soon take up the entire space.

All it took was a flex of his powerful back to turn the ceiling to wood and plaster chunks and bits of metal that flew up high then rained back down on the beast. With some quick thinking, he increases the pull of his ass enough to get the fox safe inside his dragon 'cave' as the debris harmlessly falls on the dragon. 

Once it was safe, Johnathan fingered Chris out and placed him on his broad-as-a-barn shoulder, purring happily. Cum continues to leak from his cock, running down the massive dragon's pecs and body. As a final send off to the house, Johnathan strokes his dick until he cums a massive stream onto the home, turning it into a cum pond.

Johnathan places a kiss on Chris' whole body, while the fox pecks kisses all over the dragon's massive cheek. The fox holds on tight as Johnathan slowly gets down onto the soft earth, laying on his side. They soon fall asleep, cum quietly spurting from their dicks as they dream, making the pond grow into a warm lake.

FIN