Yara, friend of the groom with her younger sister

Yara had been in the process of dancing provocatively with one of the cute guys at her best friend's wedding when her sister Harley had screamed and pulled her away, sending the sisters and the cute guy to the floor.

"What the hell, sis?!" Yara exclaimed, pushing herself back up and nursing the arm she had fallen on. She looked up to see Harley panicking and tugging on her dress. Yara was confused until she turned and saw a pink-ish woman with huge black, skeletal wings sitting on her dance partner's face, grinding her bare cunt on his face and moaning like a whore. She had wasted no time scrambling away from the moaning pair. On the other side of the crowd, she could see a pale monstrous man shoving his big dick down another poor girl's throat, his seed overflowing from her mouth and nose. In her haste, she slipped in someone's spilled drink, staining the front of her green dress, before she managed to get her feet under her and cling to one of the walls with her little sister.

"What the fuck is going on?" Harley asked, gasping for breath and clinging to her sister. The women cowered on the floor, looking around as the reception devolved into chaos. Two demonesses near the doors were fucking anyone who came at them, and more were attacking the groups spread through the large room. Yara thought she saw Whitney, Renee's sister, lunging at someone, but her body was so different that she had trouble believing it was the same heavy girl, despite how similar they looked.

That is, until she spotted the man she had just been dancing with convulsing on the floor, cock pointed into the air and shooting jets of cum, fangs appearing in his mouth, horns from his head, and his entire body growing and turning dark green. As soon as his convulsions stopped, he tripped a woman running past, rolled over, and pushed his enhanced penis through her dress and into her cunt, making her moan with surprise and pleasure. It only took a moment before she was panting and thrusting back at the demon, her eyes beginning to glow with hellish light.

"We need to run, escape," Yara whispered to Harley, trying to keep the younger girl calm. It didn't seem to be working, as she was still hyperventilating.

"It won't do us any good, you saw what that guy just turned into! And look, the girl he's fucking is transforming too! Everyone they fuck gets turned into one of them," Harley said back in a panic. Sure enough, the tripped woman's breasts were rapidly growing out of her frilled dress, the lacy and revealing fabric tearing apart as the flesh **** it to split. Yara couldn't help but stare, the skin on her chest tingling with excitement. 'That could be me', she thought, squirming slightly. 'Moaning like a slut with a cock in my quim.' She didn't know if she was uncomfortable or aroused at the idea.

"We still need to get out of here before one of them comes after us," Yara said, trying to push the perverse thoughts away.

"Through where? They've blocked the doors, we're trapped!"

"The windows, behind those drapes. We can open one and climb out. We just have to be quick and sneaky," Yara said, getting on her hands and knees, trying hard not to wiggle her ass at all the cocks in the room. She led the way, Harley following close behind.

The path they had to take was easy. Most of the demons and their transforming victims were in the middle of the room or by the doors, both of which were on the other side of the ballroom. They were out of the way and mostly hidden from view by the tables scattered around the area. However, Yara was becoming increasingly short of breath. At first, she contributed it to panic and exertion, but the tingling of her skin, particularly on the slopes of her breasts and her nipples, told her it was something else. She touched a hand to the wet front of her dress, her hand coming away sticky.

A sinking sensation filled her stomach. No drinks had been on the dance floor, and there was another sticky fluid that had been there in abundance. A quick sniff confirmed her suspicions, the sharp tang of girlcum tickling her nose. Before she could stop herself, her tongue darted out, tasting the corrupted liquid. It's taste exploded on her tongue, making her shudder as its power assaulted her.

"You have to g-go," Yara said haltingly. She sat down against the wall again, shuddering as the fabric of her dress shifted against her hypersensitized skin. "Go, get out of here."

"What are you doing, come on!" Harley urged, pushing Yana to try and get her moving, only to have her hand batted away.

"Don't touch me, it's already too late. You need to get out while you still can," the older woman said, trying to fight the tingles of pleasure that ran up and down her spine and her aching breasts and pussy that begged to be stroked.

"What do you mean, you're fine! None of them have even gotten close to you, much less fucked you. Now fucking with me and lets g-"

"I'm not fine! I think it's some sort of infection, some virus in their cum. Even minimal contact is enough to feel the effects. God, I'm so fucking horny," she groaned, her hands roaming her fabric covered thigh and inching upwards.

"No, no, come on sis! We can get out of here, we can get help. If it's a virus, there must be a cure. We can find it and you'll be okay. We just need to get out! Please!" Harley begged, pulling on Yara's arm.