Sam grinned as he watched Glen's reaction - his studly buddy coming five times, a big full load the first time, followed by smaller ones for the next four. And yet still Glen was hard, staring at Sam's monstrous new body in awe and lust.
"I guess you like what you see..." Sam rumbled, his voice deep and low. Glen groaned, as his cock spasmed, cum dribbling out, a sixth orgasm. Sam chuckled, and reached out, grabbing his seemingly small friend Glen, tossing the smaller muscleman onto the bed. Glen rolled onto his back, looking up with wide eyes as Sam approached.
Sam walked right up to the edge of the bed, and then paused. He raised his massive arms slowly, and then flexed, his enormous biceps rising freakishly, two massive boulders of muscle, each huge and hard and covered with veins. He paused to give one a long, sensuous lick, and grinned when he heard Glen's groan. Sam repeated the show on his other massive bicep, and turned back to Glen with a wink. He brought his arms down slowly, and then flexed his immense chest, his two brutish pecs bloating outward insanely. He chuckled as he watched Glen shake with his seventh orgasm.
Sam's big hands reached out, grabbing Glen's legs. He pulled his friend toward him, toward his monster dick. He pushed against Glen's ass, teasing his friend's muscular glutes with his huge musclecock. Glen writhed and moaned, but was also getting worried.
"I- I don't know if I can take that thing..." he panted.
Sam just smirked. "Sure you can. I guarantee it."
It wasn't an exaggeration. When he grew his tool to its current three foot size, he had made some other changes as well. His pre was now a superpowered lubricant, that would make copulating physically possible.
Sam grabbed Glen's legs firmly. "Let me show you..." he purred in his deep, powerful voice. And he pushed in. Slowly.
Glen cried out in a mixture of agony and ecstasy, feeling his ass stretch to accommodate the hugeness that was Sam's tool. Glen's own cock went mad, the eighth time so far, cum dripping out onto Glen's rock-hard stomach. Sam grinned, and pushed in deeper, bringing new cries from Glen.
"OH FUCK! OH FUCK! FUCK!FUCK!FUCK! So HUGE!!!" Glen half screamed, half panted. Sam responded by pushing in more forcefully, sending more and more of his huge cock up his muscular friend's strong ass. Glen responded with a stream of compliments and obscenities, not sure whether to beg for a break or for more.
More is what he got, of course, as Sam started pounding him hard, sending his huge dick deep into Glen, his huge body filled with unimaginable power. Even with his super pre easing the way in, a lesser man might not have survived the insane pounding Sam was giving Glen. The old Glen most certainly would have been broken by now, but the new one was barely able to take it, screaming out Sam's name, screams that were music to Sam's ears. The bed broke, and Sam just grabbed Glen, holding him in place as he fucked him hard. He pumped in faster, harder, over and over, his huge balls churning and his cock getting bigger and harder, until finally he let loose a mighty bellow that shook the room and made the window glass shatter, as his cum jetted into Glen, the force of it making Glen scream with pleasure, his own cock hard as a rock, letting loose its ninth load. Sam pulled away his hands, leaving Glen impaled on his still-spasming cock. Glen moaned, and Sam grinned, raising his huge arms and flexing in triumph. Even in his state, Glen reached out to caress and worship the massive muscle-mountains, feeling their freakish hardness. "Oh fuck..." Glen managed to moan at last. Sam laughed, and pulled his buddy off of his huge cock. He dropped Glen onto the mattress that sat atop the ruins of the bed, and turned to root around in the closet.
Everything was too small, of course, but he eventually found a pair of basketball shorts. They had been baggy before - too baggy, really. But now they barely squeezed around the tops of his massive quads, hugging his powerful glutes and massive thighs, his huge dick bulging obscenely in front. Grinning, he grabbed a baggy old tee shirt as well. It was XXL - a free gift, one size fits all. He pulled it over his head, and couldn't stop the laugh that bubbled up inside him as his monstrous arms tore through the sleeves without even trying. He spread his lats, and they tore through the sides as well, leaving the shirt torn in several places, barely covering his massive chest and enormous back. His lats thrust from the sides, and his arms were completely bare. Even his thick nipples protruded through each ripped side. Still, he was dressed, after a fashion.
"I'm heading out," he said simply, in his deep, low, rumbling voice.
Glen could only nod weakly, and murmur an acknowledgment.