Faced with three Infected, they're helpless

The three slugged survivors were slowly rising again, their limited mental faculties returning. All three's eye were pale, their pupils surrounded by white. The worm in Carly's mouth hung out past her lips, still drooling a slimy fluid from its tip. Ryan looked like a classic zombie, his movements stiff and jerky, except for the large cock sticking out though his torn suit pants. Both of them watched the terrified couple with uncaring eyes, but didn't move from their spots.

Ethan, meanwhile, was still pumping his cock, the colossal shaft so thick that it barely fit in his hands. It looked more like a penis-shaped cannon than anything that belonged on the human body. Milky pre flowed from the tip, lubricating the enormous length as the mutated man's release approached.

Ethan suddenly cried out and the flow leaking from his cock increased. His powerful muscles clenched rhythmically, his entire body reveling in his rising orgasm. Finally, with one last yell, a massive wad of cum burst out of his engorged urethra, the blob tens of times bigger than a normal man's load. The thick liquid soared across the room before landing on Catherine's chest and fatty stomach with a heavy splat.

Catherine screamed just as a vent above them burst open, sending a small avalanche of slugs raining down on them, most landing on Nathan as he covered his wife. He had just enough time to see the blob of cum on his wife start to squirm before horrible pain bloomed from his back.

Catherine, still screaming, was frozen stiff as her husband slumped off of her and the thing on her chest crept down her body. It was another slug, she realized, hidden in Ethan's cum when it hit her. She tried to grab it to throw it off, but the moment she touched it, it dove down, pushing through her shirt and pushing into her belly button. Her breath caught in her throat, finally silencing her screams, though her mouth still hung open as the worm burrowed into her. She had just summoned the strength to scream again when untold pleasure rocked her, turning her cry into a small whimper, her eyes rolling back in their sockets as the virus coursed through her.

Next to her, Nathan continued to writhe in pain while his eyes stayed fixed on his wife, unable to look away. Before his eyes, the excess fat on her stomach and thighs disappeared, either disappearing or moving to her tits and ass as they grew in size. In moments, she looked like a completely different person, a supermodel instead of a normal dumpy woman.

He could feel his own body changing too, but it wasn't nearly as pleasant as his wife's, if her moans were any indication. Any muscle mass swiftly shrank and disappeared, leaving him weak and unable to move. His stomach bloated, followed by his chest a moment later, a fearsome pressure inside him forcing his skin to stretch. His last thought was that he would burst if the stretching kept up before an indescribable feeling hit him and his consciousness failed him.

To his transforming and orgasming wife's eyes, Nathan had swollen up tremendously before his entire body split open, releasing a flood of the slugs that had attacked them. The newborn monsters immediately crawled over their host, consuming him until there was nothing left but tattered clothes. Catherine released a shuddering gasp as one final blast of pleasure rocked her, sending her much larger and firmer tits shaking delightfully, and her orgasm ended. The slugs immediately climbed onto her, clinging to her statuesque body. She carefully stroked one of them, feeling only affection and desire to see them invade another as they had to her.

She slowly rose, her pale eyes matching those of the other three Infected in the room. They all looked at each other for a moment before clearing the barricade and leaving the store, on the prowl for more humans to infect with the parasites.