Sex Triggers A Second Puberty

Reed Richards had always been older than Sue Storm. Even when they first met, when they first entered a relationship, there was that gap. In truth, she had appreciated it. How mature he was, so much moreso than the young men who normally hit on her at university. Reed had been respectful of her, had wanted to learn about her mind more than her body. She had basically had to seduce him to get him into bed with her. Their honeymoon had been a period of exploration and revelations for both of them.

Over the years, they had both mellowed. Two kids had tamped down on Sue Storm's sex drive. That initial hormone-driven rush of desire had turned into something richer, deeper, but less focused on actual coitus. An emotional relationship built on mutual trust and respect.

"Fuck! Fuck me daddy! Harderrr!" Sue Storm screamed into Reed's ear as his cock tore into the tight cunny that absolutely did not feel like it had passed two children. The Invisible Woman humped him with a hormonal rage that she hadn't experienced in decades, a mindless need to mate that put Reed Richard's cock to the test. Ass balanced on the edge of his work table, her entire body flexed to meet his thrusts as Reed Richards exerted himself, driven by Sue's eagerness into unusual effort.

"Sue...I'm going to...ejaculate!" he said, unable to stop his hips pistoning.

In response, her legs cinched about his buttocks. She pulled him deep inside of her, until his long, skinny cock crashed against her cervix with such bruising **** that her whole body seized up momentarily with pain—and then she held him there and whispered in his ear.

"Cum in me! I want it all!"

Lesser men would have erupted at less provocation. Reed Richards shivered....and then Sue felt it. THe hot, wet splash of rope after sticky rope of sperm pumped deep into the furthest part of her cunt. Reed held her but his elastic body seemed to surge beneath her arms and legs, every muscle rippling as he blasted the mouth of her womb with such intensity that tears streamed down her face.

It seemed to go on forever....and then, at last, he sagged like warm taffy into his wife's arms.

"Oh fuck," she said, running her hand through his hair. "Tell me you can do that again."

"That...was...three times...darling," he huffed. "Give me...just...a little while...to recover."

An invisible hand reached down and tickled the underside of Reed's balls. Inside of her pussy, her could feel an invisible ring grip his softening prick, stroking it back into hardness.

"Don't go soft on me now," Sue Storm said.

Within Sue Storm's body, something was happening. The tachyons that had sent her aging into reverse hit cosmic ray-enhanced cells. Long-dormant biological processes restarted. A cascade of interactions as her body reactivated the ancient commands from puberty:

Bigger tits. Wider hips. Taller. Stronger. Prepare for childbearing.

A biological timebomb had just been set to ticking...and soon, the results would be obvious.