Charlene had never seen anything so big in her life, not in her older brother's porno collection, not in the joke dildo her big sister Jenny had brought home from her sorority at college. It was humongous. She had to have it. But how? She'd never done a guy bigger than eight inches, and more than that was sticking out of Nurse Natalie as Noah rammed her.
"Oh!" screamed Nurse Natalie. "Oh you hunk of man!"
Noah finally spent himself, both of them orasming simultaneously, and finally his thick meaty organ slid out of her with a sound like a canned ham being unmolded from its can.
Noah was still erect, though flagging slightly. "You want to do it too?" he rumbled, still sounding vaguely geeky under all the raw animal maleness.
Charlene nodded dully but some fragment of sanity remained in the back of your brain. "Uh...I've never done it with a guy your size before..."
"It's great!" babbled Nurse Natalie. "I've never had a man that big and I've slept with lots!"
"Uh..." said Charlene, "could you give me a little advice then? In private, like, first?"
Nurse Natalie sat up, wincing and wobbling as she got to her feet. "What a man. But sure, honey." She leered at Noah. "Let's give our bo-hunk a moment to recover, not that he won't be ready for another go round soon. That okay with you?"
Noah grinned. He'd been laid for the first time in his life and was about to get laid again! "Sure," he rumbled, picking up his copy of On the Origin of Species. "I'll just read while you talk."
Charlene helped Nurse Natalie into the next room and shut the door. "What was it like?"
Nurse Natalie almost swooned. "Oh, amazing..." she breathed. "I've never had a man like that. He's got the stamina of a teen and more meat than any man I've ever been with!"
"But how will it fit inside me?" asked Charlene.
"Oh don't worry, honey, it stretches," Nurse Natalie assured her. "I've given birth to twins. It's amazing what you can get through there. He's still not as big as a baby." She paused. "Well, the larger babies, at least."
Meanwhile, back in the other room, Noah tried to figure out what was going on. He must have had a concussion. Estimating from the door, he was well over two meters tall, hung like a donkey, and with hands and feet that were positively huge, but he didn't remember any of this.
Last thing he remembered was just reading his book, but his father had always said that if you wanted to remember anything, you just went back and retraced your steps.
Noah decided to do this, opening the book and skimming over the first page, which he remembered, though he didn't notice that as he did this, he grew an inch taller, his shoulders grew an inch wider, his cock got an inch longer, and his feet grew a size larger as well, leaving him 7'3, with a 22" penis and size 25 feet.
Noah flipped the next five pages, skimming over them, remembering everything clearly, but jumping as he did to 7'8 with a 27" penis, flaccid, and size 30 feet.
Noah continued flipping pages till he got to where he'd been in the book, jumping in height to 8'4" with a 35" penis and size 38 feet and then he settled in to read. 8'5", 8'6", 8'7", shoe size 39, 40, 41, and his penis reaching a full yard, then growing two more inches beyond that to 38", almost a full meter in length.
Then the door opened and Charlene came back in. "Okay loverboy," she said. "I'm ready to be nailed."
Noah stood up, this time hitting his head on the eight foot ceiling instead of the I-beam. Charlene screamed but then threw herself on the exam table in a daze. "Do it to me!" she cried.
Noah brushed the plaster off his hair with his huge paw, realizing that however hard he'd hit his head, it was not explaining this. But he was also immensely horny and possess of a giant rod, and, he was fairly certain, he'd developed some sort of animal pheremones that let him turn regularly slutty women into complete nymphos.
*Cool!* Noah thought as he grabbed his giant cock with both hands. *I've developed a mutant superpower that's made me the biggest stud on the planet and helps me get laid!*