Everyone was surprised that David had just ejaculated in front of ten or so conscious people, surprised that he let Marcus go that far. David knew to be embarrassed, but as he looked at Marcus beat off, he couldn't help but think that the kangaroo definitely looked larger than usual. The whole group went bug-eyed when they saw that each time Marcus slammed down on his raging boner, his arm looked definitely bigger. And it wasn't just his arms, the kangaroo was growing all over.
Marcus let out a pained moan, the feeling of his skin stretching taut over the expanding muscle made him feel like his body was on fire. And it could have been, he was burning up from the exertion, his skin beet-red all over underneath his russet-brown fur glowing angrily as he he clenched his teeth. He felt his bones cracking, his spine elongating as mounds of meat piled on top of his frame, going from a moderately beefy, tone athlete to something similar to David. In fact, as he continued to pump hard, he grew even larger than David. The kangaroo's shirt began to fray at the seams, the sleeves too constricting as Marcus' biceps slowly expanded and eventually the fabric ripped as he flexed experimentally. He flexed his entire body, the shirt ripping along the back and his jeans fraying at the thighs. A dribble of clear pre ran down the roo's length, drooling farther than it ever had to before, as the shaft swelled to a massive fourteen inches. The pre soaked into the underwear, now straining to keep the large testicles held within. When the growth stopped, Marcus was still furiously beating himself off.
The kangaroo let out a deep huff and pinched a nipple with his free hand, enjoying the feeling of just how large his chest had gotten. What was once a fit six-pack had turned into a rugged eight, and the roo couldn't help but feel the deep valleys of his abdomen. All this self worship was too much and he cried out as his cock lurched heavily and his testicles pulled up, visible through the pre-soaked, translucent underwear. Everyone stopped as they watched the newly grown kangaroo's first jet flew straight up, the volley so powerful and potent it took a good five seconds before it landed on Fang's muzzle and another two seconds before the stream ended, the wolf too stunned by Marcus' recent developments to do anything. The roo continued to buck and groan wildly as his orgasm continued. After the seventh shot, the cock was firing blanks, still lurching, but with no ammunition left.
"Yeaaah," the now giant kangaroo sighed. Marcus just leaned back satisfied after he had the most intense orgasm he'd ever had. He looked around at the guys who were watching him, and for the first time in a long time, he was proud of what he did, proud of what he was. He turned to David with a dopey grin, the blue dragon sitting next to him just stared back in horror. Marcus then cupped his paw on David's cheek and pulled him into a kiss. The blue drake pushed back hard, trying to pry himself free of the now larger kangaroo. Marcus forced his way into David's mouth, the dragon helpless as he's violated by the roo. When Marcus stopped sucking his face to breathe, David finally pushed hard enough to get himself out of the lock and stands up, stumbling back.
"Get away from me, you fag!" David yelled. He wiped his mouth and scowls. Marcus looked up incredulously, now quite sober as he realized what had just transpired between them. David began to turn, tucking his cock back into his pants.
"Dave, wait!" Marcus said, he stood up and everyone saw just how magnificent he had become. At seven feet and 6 inches, he was a foot taller than he was before and much much heavier. He was just four inches shorter than Fang now, and his build was equally impressive. His brawny physique moved in awkward spasms, the kangaroo inexperienced with this kind of bulk. He tripped and crashed over the edge of the sofa, his hand extended out as he watched David disappear into the hallway.
David rushed to his room and locked the door. He slumped with his back to door and curled himself up, his head bent down between his knees as he began to cry softly. Was it technically rape? Is that what Marcus did? He enjoyed it, but he didn't want it? That's what rape was wasn't it? Unconsensual sex? A blowjob is sex, right? David kept his thoughts reeling, his mind racing through what had just happened to him. His mind stuck painfully in replay.
The blue dragon heard shouting coming from the living room, some sort of scuffle and furniture crashing. He knew he should go and stop it, it was his house. But he couldn't show himself to the others, still embarrassed about the Marcus incident. Speaking of Marcus, how did he do that? Grow like that? David looked down at his crotch? He'd never done that sort of thing with a guy before. Plenty of girls had accommodated him, but none of them ever hulked out like Marcus had.
Is this why gay sex was supposed to be evil? Because it did that to guys? All David knew was that he didn't like it, didn't like feeling another guy get off on him, feeling so helpless as they grew bigger than him. He shuddered at the thought if Tyler, his own brother, were to do that.
He began to calm down when he heard a banging at the door. David stands up and backs away from the door. The banging becomes more insistent.
"Go away-"
He was about to finish his sentence when...