No one even hesitates

Everyone in the room paused their orgy just long enough to look around at each other, taking their friends mid fuck. Silence reigned for a moment before three cries split the air, two coming from Olivia and Peter and the last from Iris.

The redheaded couple were spasming against each other, Peter's cock pouring cum into his orgasming girlfriend. As they shook, their transformations completed, demonic attributes overtaking their bodies, their skin becoming a dark red, their hair becoming the same color as flames. Their ears became pointed, horns spiraled out of their temples, and fangs extended from their mouths. Tails stretching out of their bodies, Peter's long and thick, Olivia's quick and thin. Leathery wings burst out their backs, the scales shifting in hue to look like tongues of fire. Their already considerable assets saw one last surge of growth, Peter's cock maxing out at nearly eleven inches and Olivia's tits and ass giving her the most drastic hourglass shape to be found. As soon as their peaks and transformations finished, the two went right back to fucking, their newly enhanced strength enough to dent the wall where they continued their rut.

Across the room, Iris was drooling into the carpet as the virus reformed her. The decision to give in to the virus had barely taken a moment with Bryce's demonic cock filling her soaked cunt. The promise of being able to feel that sensation forever was all she wanted or needed, no matter what form it took.

Her body was locked in place, not a single muscle twitching, not even her heart. Her eyes stared straight ahead, not seeing, her entire being focused on the cold consuming her. It crept through her body, stealing every hint of warmth from her. Everywhere the cold reached, her skin lightened to a pale perfection, blemishes and scars disappearing. Her hair followed suit, becoming pure white and growing down her lithe back. Her ass and hips pushed out, giving her the lower half she had always wanted. Her sloping breasts abruptly expanded, becoming huge, wobbling boobs that would have left her breathless if she could breathe. Last came the demonic changes, horns curving out of the top of her head, tail whipping out of her spine, white bat wings sprouting from her shoulder blades, nails extending into claws and finally, her eyes shifting from gray to iridescent and undeniably entrancing.

Iris' body finally began working again, a shuddering breath filling her lungs. She couldn't help but moan as her hyper-sensitized cunt gripped Bryce's cock, milking it for more of its black, corrupting liquid.

"Ohh, fuuuuuuck, don't stop Bryce. I fucking need it. Fill my whore body with your seed! Then you can try out these new tits, they feel even better than before!"

"That's right, beg for it. Beg! You always wanted me, you thirsty slut! So reap what you sow! I know I will!!" Bryce yelled, his crimson dick spewing the white-haired demoness full of his load, sending Iris into moaning convulsions.

"He's good, isn't he?" Caroline said, laying down next to her sister succubus, who was still shuddering on her hands and knees, eyes rolled back as orgasm after orgasm sent her mind reeling. "Don't worry darling, even if you get tired of him, we have plenty more dicks to tour." The crimson demon looked around the room at the other transformed teens, their supersexed bodies grinding and thrusting against each other as tits grew to voluptuous size and muscles filled with monstrous strength, becoming all sorts of monstrous colors. They weren't just normal incubi and succubi either. Caroline definitely saw one girl grow a cock to rival the one in her ass, becoming a sincubus, and one of the men became more beastial, looking like a giant bat crossed with a person.

"They're all perfect," Lilith said, bouncing on the hulking Thompson's cock, his girth huge even for an incubus, stretching the demon queen to her limit. "Should make for a good start..." Lilith trailed off as demonic seed poured into her womb. It filled her to the brim, but every drop was held inside by Thompson's massive size. Lilith was about to find another dick to pleasure her when she felt a powerful pulse in her mind. She instantly knew where she was supposed to be and that she had no time to waste getting there. Swiftly pulling herself off Thompson's still shooting shaft, Lilith strode towards the front door.

"Bryce, I have somewhere to be. Take your friends and spread through the neighborhood as much as you can, I'll be back once our master is done with me." She vaguely heard Bryce's grunt of acknowledgement before she stepped outside and took off, flying towards the city as quickly as she could.