Reed Richards Cannot Satisfy His Wife Normally...But...

"I hope you know what you're doing, Dr. Richards," Dr. Henry McCoy, the Beast, said as he stared at the clear tube of bubbling flesh. He studied the mass of flesh through the round lens of his glasses, one clawed hand stroking the fine blue fur on his cheeks.

"It's for Sue's sake, Henry," Reed Richards said as he stretched his arm across the lab to access a control panel. On the large screen, a double helix appeared. "I've managed to isolate the X-gene and splice it into an 'immortal' cell line. Replication is steady and genetic drift is minimal. It's the perfect starter material."

"Mutant growth hormones are nothing to trifle with," the Beast told him. "We don't know how it will interact with your cosmic ray mutated physiology. And there is the potential for addiction."

A pink liquid ran through a series of tubes. The MGH was being separated, concentrated, and processed through Mr. Fantastic's lab setup. At the end of the line, a small pink pill, triangular in shape, dropped into a tray.

"It's not my addiction I'm worried about," Reed confided. "Sue doesn't quite realize how biochemically dependent her system has become. And her own sexual needs have increased substantially since her vaginal transformation."

Hank nodded. "We observed something similar in a few of the Mandrill's victims. We have located the perpetrator, by the way. This Porkum will be dealt with."

Reed nodded as he held the pill up to the light. Heart heavy with what he was going to have to do. Yet it was the only thing that would help his wife. And Mr. Fantastic would do anything to help the Invisible Woman.

"Goddammit, Reed," Sue said in exasperation. "I said fuck me! What use is it to give yourself a horse cock and then fuck me like a virgin on prom night?"

"I'm sorry, darling," Reed said, as he felt the pill begin to take effect. Then his voice grew deeper, a new steel in his length. Sue gasped as she suddenly felt his prick swell thicker than she had asked. For a moment, it felt as though he had slipped a baseball bat inside of her.

Then Mister Fantastic grabbed the headboards. His legs coiled into springs. Sue could not see it, but his human prick took on a distinctly inhuman and pink appearance. He began to sweat, exuding a thick, oily liquid fragrant with pheromones that lit up Sue Storm's brain like a Christmas tree. Immediately, her mouth hung open, speech incapacitated as her mental defenses were stripped away by the pheromonal assault.

Reed grunted as his newly enhanced cock slammed forward. His body, like a coiled spring, now stronger than before, hit the back of Sue Storm's pussy hard enough to tear the sensitive tissues and bruise the cervix.

Which regenerated almost immediately.

The genius-level intellect retreated against an unanticipated spike in libido. Reed Richards ogled his wife's motherly tits, leered at the obscene bulge of his massive prick inside her engorged cunt, and laughed mockingly at her yelps of pleasure and pain as he pulled out and slammed the length of himself into her again.

In the living room, Ben Grimm and Alicia Masters heard the soft thumps of the bedboard slamming into the wall, the muffled screams of pain and pleasure from Sue Storm as for the first time since her pussy had changed, she was fucked long and deep and hard and fast in a way she had imagined only one being on the planet could manage.

"Gotta ask Stretch to upgrade the sound-proofin'," the Thing said.

Alicia, who had caught a whiff of something strangely animal from beneath the door, bit her lip and suppressed a moan as she slid a hand down Ben's shorts, seeking a particular rocky outcropping.

"But isn't it a little...exciting?" she asked, voice pitched husky and low.