Jake watched as Tom tried to raise his right hand, he was sure that he could see the hand growing larger! Then Tom's dick appeared, slipping like a snake from under Tom’s massive gut and rising like a hot air balloon, growing thicker and longer with each heartbeat until it slapped against Tom’s chest.
“I need a hand with this” Jake heard Tom's thick voice say raggedly. The big figure sitting on the bed moved around until it could take the huge cock into his mouth.
“Yeah” Tom moaned.
At the door Jake slipped his own hard cock from his boxer shorts, rubbing the slick clear percum over its head and down its length. Jacking his hand up and down its throbbing length, Jake leaned forward for a better look, unwittingly pushing the door open slightly further, this old hinges creaking slightly as it did!
Jake held his breath but neither figure on the bed seemed to notice his presence in the doorway, though with door now mostly open he slipped inside so he could see better. He couldn’t understand what was happening to him, he was not gay! Guys did nothing for him! Yet he was as turned on as he had ever been, more even. His cock was harder than during his first screw. He jerked himself off, the smell of the room, the scent of cum, sweat and sex only making him harder and hornier.
Anna licked and sucked at Tom’s hard cock, it seemed to grow more as she did. Each one of Tom’s heartbeats seemed to make it bigger. Anna could not get it all into her throat. Tom was moaning in pleasure as his heavy balls grew and filled as orgasm approached. Pre-cum poured out of Anna’s cock onto the already drenched sheets. The old bed creaked and screeched as they moved. Tom continued to change; his pecs were becoming heavier, more defined, and hairy. His shoulders were growing wider, his jaw squarer, and his hair longer, thicker. He began to buck his hips into Anna’s mouth, each time he raised himself from the bed his ass came down more muscular, his thighs were thicker. The massive floppy cum gut he had began to solidify, to turn into a rock hard belly. His legs were long, his claves larger, his feet bigger.
Jakes eyes were bulging watching the slim Tom turn into a hunk. Jake was not a small man, he weighted in at 220lbs of solid 6’ 4” hairy muscle; testament to his weight lifting and football days at college and the hard work he put in as a Fireman. Jake had seen his share of large men, but the cocksucker on top of Tom was the biggest man he had ever seen, and Tom was quickly turning into a linebacker in front of him. He pumped his cock like he never had before. Then with a shout he began to cum, sending ropes of thick cum across the room.
The noise caught Anna’s attention and she turned her eyes towards Jake never stopping her administrations of Tom’s thick cock. Her eyes sparkled at Jake locking him into a stare. Resting her weight on her thick right arm she used the left to pull her own massive erect cock out sideways and wave it at Jake. Mesmerised Jake stepped forward ripping his clothes from himself as he did. He lay flat on the bed, ignoring the frames creaks of protest, and took Anna’s cock into his mouth. He had no experience of cock sucking but instinct took over and soon he was bobbing along its long length, using a hand to fondle the thick set of balls hanging from the root of it.
Tom’s moans were getting louder and his bucking began to grow erratic. Anna could feel the cum as it shot up through the shaft- then exploded into her mouth. Tom grabbed her head and held it in place with his growing strength as his cock unloaded massive load after massive load down her throat. With each blast his body shook and bucked; making his growing frame pump with muscle, his legs inched down the bed as he grew much taller. From his beard to his big feet he was covered in a carpet of slick hair, and still his cock grew.
Jake could do nothing but watch as Tom filled out. His own cock exploded as he humped the mattress. His sucking grew more frenzied as he pumped out two massive loads. From his viewpoint he watched Anna’s belly grow heavy with Tom’s cum. The six pack vanished as he filled her, her stomach stretching towards the bed as Tom’s extreme cumload made her gut distend. Unlike Tom’s gut though Anna’s was a solid muscle gut, not a soppy beer gut and as he finished cumming she straightened up and slapped the solid sides of her belly allowing the last of Tom’s load to shoot all over it’s face. She grinned madly and rubbed the warm cum into her hairy heavy gut.
Tom reached up a huge hairy arm bigger than Jakes thigh. He pulled Anna to him and kissed her deeply. Anna responded in kind then rubbed her tongue over his still erect cock; its fist sized purple head level with his nose. She looked at Tom then at the still sucking Jake. A look of understanding passed between them.