Casey eyed up Alana and Danni with undisguised lust.
The sun had set and the impromptu party was lit by the light from the grill and a decent sized bonfire. The flickering light danced over their glossy coats, playfully showcasing the bulges of their powerful musculature.
Her eyes settled on Alana's full tight ass. Casey could feel new desires settling in, her cock was rock hard, and would be for the rest of her life. She wanted to spread those cheeks and fuck that ass.
She closed her eyes as another wave passed over her. Her breasts had been consumed by her blossoming pecs earlier, but she felt her chest barrel and thicken. The bulky sweatshirt she had been wearing before to hid her frailty now split down the side. Her tail had grown in already and added another foot of length.
It was time. She needed release, and she needed to finish her transformation quickly. Not only to cure her disease, but to slate the urges building inside her. She had infected herself of her own will, and after seeing the fantastic beasts that Danni and Alana had become, she would have done it anyway even without her illness.
She was sure the others wanted this too. Rather than contact the authorities or track down the infected animals, they were having a party. Someone just needed to bring it out into the open.
Danni rose from her chair. She hadn't been able to stand unsupported for months. As she did so, seams of her clothing burst, unable to contain her growing bulk.
The two anthro cats had been watching her, their noses no doubt giving them a play by play of her changes. Their attention tipped off the others.
'Oh Casey...' Jay said quietly as he looked upon his wife's metamorphosis.
'I did this intentionally, and of my own free will.'
Casey didn't recognize her own voice. This voice was deep and rich, nothing like her former soprano.
Ehe wrapped both hands around her growing cock, feeling pawpads swelling into existence as she did so. She started stroking as she continued.
'This started as my chance at beating my illness, but I can already feel it's more than that. I feel the old me slipping away, and I don't mind at all.'
Her changes were accelerating. Canines surged into massive sabers and ebony fur swallowed up pale skin. The new glossy new fur rippled as her body thickened with bone and heavy muscle.
'I can feel the Pride, not only my brothers on all fours, but Danni and Alana too. We are a family, a brotherhood.'
The last trace of the old Casey was her long chestnut hair. This didn't fall out as she expected, but thickened and reshaped into a mane that wrapped her neck and shoulders.
'I infected myself with samples from every great cat type here in Sanctuary, I carry inside me the virus to create any and every hybrid.'
She was pushing eight feet now, standing on digitigrade legs, thick claws digging into the earth.
'I think you all want this as well, want this to spread. Why else would we be partying instead of attempting to stop it?'
A thick handpaw picked up an empty drink pitcher, seeming more like a pint glass with Casey's new size.
With a roar, Casey came. The pitcher caught the copious loads of infectious seed.
Within Casey's mind, the connection to the Pride opened fully. In an instant she knew Danni and Alana better than she had known Jay. They were soulmates, literal parts of each other and a greater good.
Casey also was presented with a dilemma, a pre-existing tension in the shared identity of the Pride. Danni viewed them as hermaphrodites, equally male and female, yet neither. Alana felt their identities were as male as their body shapes. As the third human to become part of this Pride, the tiebreaker fell to Casey.
The new sabertoothed anthro lion's eyes opened. There were no more doubts or insecurities. Casey felt in charge, confident, masculine. He raised the cum filled pitcher and held it out.
'Look inside yourselves and ask if you want to join the Pride. Drink and join a new family and a new life.' Casey intoned in his deep baritone. To add a dramatic flare, a breeze picked up and made his thick chestnut mane dance in the wind.