If Jeff had read more about the 'Father of the Pride' package, he'd have known what he had unleashed. Yes, the program had transformed his dad, Mike, into a buff anthro lion that was very well-hung, but that was only the start of it. The fetish package wasn't restricted to Mike. Like a wild lion, he needed a pride, a harem of lionesses to hunt for him and bear his cubs. And the intoxicating musk that Mike was now giving off will make anyone who smells it into one of Mike's lionesses, regardless of relationship.
Jeff couldn't take his eyes away from his transformed father. Every inch of him was mesmerizing: the bright yellow eyes, the sharp grinning teeth, the long, thick mane, the blonde beard that remained distinct from his facial fur and blended into his mane, the wide shoulders, the broad chest with hardened pectorals and ads, the powerful arms and legs, the claw-tipped paws, the tail swinging gracefully behind him, the golden orbs hanging between his legs, and the massive cock standing proudly at least a foot long. Jeff never saw such a mighty cock before and he had never yearned for one either. But now all he could think of was how much he wanted to have it.
So deeply intoxicated was Jeff by the leonine musk and Mike's awesome visage that he didn't notice his own changes starting. His hair was turning blonde and growing longer as his eyes turned yellow. His gaping mouth showed his teeth getting sharper and his ears were getting rounder and fuzzy. It was only when his feet started feeling cramped that he looked away. He could see his shoes starting to bulge in the wrong places.
"Need some help, Jeff?" asked Mike in a deep, lusty growl.
Jeff shivered involuntarily and said, "Just a little." Did his voice sound different? It sounded higher.
Mike knelt down and pulled at his son's shoes. They came off pretty easily and so did the socks. Mike massaged his son's changing feet. "There we go, need to show those pretty paws," he said. He kneaded the boy's feet until they became a pair of big paws like his own, though noticeably smaller. Golden fur was starting to climb up Jeff's legs.
The sensation of his big, muscular dad massaging his feet was too much for Jeff. He had to jack off right now. Opening his button and fly, he stuck his hand down his pants and desperately groped his dick. His puny dick seemed to pitifully small compared to Mike's kingly scepter. But it felt like it was getting smaller still. Jeff could swear he could feel it shrinking into his body under his fingers.
"Got something to show me, Jeff?" asked Mike noticing where Jeff's hand was.
"N-no..." squeaked Jeff, his voice definitely sounding higher.
"Oh, I think you do," said Mike with a lusty growl. He grabbed Jeff's pants and pulled. With them unfastened, they slid off before Jeff could grab them, leaving him awkwardly in his boxers. The fur had already grown up his legs and taking over his hips. Jeff felt something in the back that felt less restrained with his pants gone. Not waiting for permission, Mike grabbed Jeff's boxers and ripped them off. Instead of grabbing a tiny penis, Jeff's hand, which was now furry and growing pads and claws, was placed just above a newly-formed pussy. Mike grinned and said, "There's my girl." He reached down and inserted two fingers into Jeff's slit.
Jeff threw back his head with an undeniably feminine moan. Mike's fingers felt so good inside of him. But Jeff didn't seem much like a 'he' anymore. That was obviously a vagina that Mike was stroking that must mean that Jeff was a girl. No, a woman, a woman in need. Jeff's hips and ass were swelling out to a proper size for birthing cubs, her tail growing long like Mike's. Her blonde hair was cascading down until it reached her thin waist. Jeff's moans were becoming more female, but also deeper as her face pushing out into a lioness's muzzle.
Jeff's last piece of clothing, her shirt, was becoming ill-fitting as she was growing taller. It was also bulging out as her nipples were pushing out, building up mammary tissue beneath them. Very soon, it was starting to strain from the pressure of keeping her growing orbs covered. Mike could see his lioness's discomfort and took care of it. His claw-tipped hands made short work of Jeff's shirt as he ripped it apart. Jeff's breasts bounced as they were freed and kept bouncing as they were growing. Jeff moaned as she felt her boobs, already swelling up to D-cups. She was no mere human teenaged boy. She was a fully grown-lioness, an incredibly sexy one with DD boobs, a tight waist, wide hips, a plush bubble butt, and long golden hair. And she wanted one thing more than anything else. She looked up at Mike and said in a husky alto, "Please, be my mate. I want to have your cubs."
Mike needed no more encouragement. Picking up Jeff, he put her on the couch before spreading the lioness's legs. His meaty cock probed Jeff's pussy for only a moment before plunging all the way in. Jeff let out a feline yowl as she felt her body being stretched out. It was the most wonderful sensation. No, she stood corrected, feeling Mike back up and thrust into her was the most wonderful sensation. Jeff's boobs were soon bouncing from the rapid movements Mike was making. Their tantalizing bouncing soon prompted Mike to lean down and started licking and sucking at her nipples. Jeff moaned from how good that felt. She imagined her cubs nursing from her breasts, to grow as big and strong as their father. But she needed his seed, she needed to be a mother now. She started thrusting back against Mike, making his golden balls bounce off her ass. She needed him to cum, she was already getting so close. He had to cum now.
The two lions let out mighty roars as they finally cummed. Mike's cock swelled as he pumped a humongous load of seed deep into his lioness's snatch. Jeff could feel her womb quickly filling up with royal seed. Her stomach was actually bulging from how much he was pumping into her. Such a huge amount of semen surely should have impregnated her. But Jeff had to be sure. "Again," she begged, "Fuck me until I'm full of cubs."
Mike kissed Jeff softly and growled, "We're only getting started." After all, lions could mate for hours on end.