As the changes progressed further for the family, so did their love for each other as a family. Acting on instinct, the four stood up together, proud and aroused by their increasingly leonine bodies and arranged themselves into a line of lion men, with the youngest cub Sam in the front, his cute furry butt being penetrated by his older sibling while Harry drove train from the back, thrusting into his mate Philip, who now resembled a male lioness with a mane, moaning in submissiveness to his dominant mate.
All the while, Mike watched in strained silence, wanting to roar in lust as he pumped his own cock in time with the family's thrusts. Suddenly, a pair of soft paws wrapped around the alpha lion man's to his surprise, which was quickly met with a smirk as he immediately knew it was his cub, already awake from his exhausted state and ready for more alpha-cub bonding time as he was already humping his hips against his daddy. "That's a good little cub," Mike whispered, giving Jeff a soft peck on the cheek. "In good time, son. But let's enjoy the newest family to our pride first~"
Redirecting their attention back to the family, the two were just in time to witness the climax and conclusion of their transformation as Harry let out a mighty roar, the sound increasing in tone as the flow of cum went through the train, ending with the adorably sexy moan/roar of Sam, his small cock letting out a torrent of the combined cum of the entire family, the last of their humanity fading from existence as thick leonine tails were pulled out above their furry asses, the tufts of fur at the end tickling the feline noses of Davis, Philip, and Harry, eliciting a cute giggle from Sam.
Mike and Jeff couldn't resist any longer as they both stood up from behind the couch letting out a duet roar of an alpha and his cub, their seed showering the lion men family. Their surprise soon turned into bliss as they reveled in Mike's alpha seed, causing them to quickly separate and instinctively kneel before their alpha, bowing their heads in overall submissiveness.
"This pride is loyal to you, alpha," Harry said expertly as though he had known how to do so all his life.
"We follow our alpha, Mike!" the entire family said in unison, their cocks squirting a bit more cum at the statement.
Mike smiled and let out a hearty laugh at the success of the family's transformation and submission to him by the Chronivac.
"This is the great beginning for our pride, and I expect the most from everyone under me!" he roared in content, gripping his cub's furry ass closer to him.
"Yes, alpha!"