Rebecca has a clear plan how to proceed the ride

After Kira was gone, Violet didn’t approve the lack of a pussy in her mouth and wanted to follow her, but Rebecca stopped the red-headed girl. The train was already moving again and she knew that it wouldn't be long until they arrived at the next stop.

“I know, you need someone to make you cum,” Rebecca said and touched Violet's enlarged breasts. “But sometimes you must be patient.”

“I don’t want to be patient,” Violet grumbled and tried to touch Rebecca's pussy. “Need pussy. Need to cum.”

“I know, I know,” Rebecca smiled. “But you also need to be a good girl. I need everyone at their maximal peek of lust if we want to infect the whole central station.”

Violet didn’t seem to like the idea of waiting, but she nodded submissively nonetheless.

“That’s more like it,” Rebecca said, satisfied. “But don’t be sad. Jess?”

She looked along the wagon and saw that Jess was bent over the passenger-seats and getting fucked by a hunk of a man. She didn’t seem to notice Rebecca, so the blonde succubus moved towards her. The other passengers were infected too, three couples fucking near the backseats and Sue getting double-penetrated by a man and a futa.

“Jess?” Rebecca said as she reached her friend. “I have a job for you.”

“As long as it includes fucking,” Jess moaned. “I’ll do anything.”

“Yeah, you’ve said that before, you little, cum-addicted, sexy girl. Don’t worry,” Rebecca laughed. “We’ll have plenty of men and women still uninfected. Go to the other door and keep the redhead warm. When the new passengers step into the train, you’ll infect them. Understood?”

Jess didn’t answer, she was cumming again and Rebecca turned her gaze to the man.

“You’ve heard my orders, let her go,” she demanded.

“Just. One. More. Load!” the man responded and pumped his hips into Jess wildly.

“Don’t worry, I won’t stop you,” Rebecca said, “as long as you fuck everyone who enters this door right here.”

She pointed at the door Jess entered though a few minutes ago. The man nodded and grinned at the thought of it, then his next load of cum splashed into Jess. He pulled out of Jess and stood by the door, stroking his cock softly. Meanwhile, Jess was on her way to the other door and as she reached Violet, started making out with her fiercely. Rebecca moved onwards and gave her orders to two more couples, who followed them immediately and walked each to the two doors, then she stood before the seats Sue was being fucked on. Her old friend looked at her and smiled, while the futa-girl Carolina collapsed on her, moaning out her orgasm. The stimulation of her cock in Sue's pussy and the tail that fucked her in her own was way too much for the girl and she just lied on Sue's stomach, moaning and leaking out.

“Having fun?” Rebecca asked.

“A lot,” Sue said and closed her eyes.

The man she sat on just started to thrust faster in her ass and Sue seemed to enjoying it.

“The train started his journey to the central station,” Rebecca said and watched, smiling, how Carolina came down from her peak of exhaustion and instantly started fucking Sue again. It was very tempting to just join all of these pairs and satisfy her needs, but she wanted to control herself just until they arrived at the central station.

“Once we are there, I want all of us to infect everyone we see,” she continued. “I can count on you?”

“Always,” Sue said and nodded.

“Good girl,” Rebecca said and turned away from her, moving to the door.

She knew she wouldn't be able to resist once the doors opened and the infected passengers start to fuck all the new boarders into one of them. She wants a piece of the cake too, but, in contrast to the others, she wouldn’t loose control over her mind. Well, only if she wanted to, but she was determined to get the central station infected, as long as the horde wasn’t there already. Thus she needed to control herself just a little bit longer, even though the voice in her head demanded to fuck her soul out. Not yet...just a little bit more patience. It was still hard for Rebecca to resist the tempting voice and her own needs that made her pussy wet and her breasts sensitive, but she had done it the last hours, she could do it for a few more minutes. Sue and Jess seemed to have nearly the same willpower as her, which was kind of impressive. Well, maybe Sue a little bit more than her sister. She even could answer her, even if she was sandwiched by a two guys and one of them was a futa. Of course, both of Rebecca's friends wanted to fuck their souls out any time now and surely this was a desire Rebecca shared. But in her case, there was something more, a greater goal she wants to achieve. She smiled as the train moved on its way to the central station, but she didn't see the train or its fucking passengers.

Since the past day, she had the big picture in mind. Her big picture, the only thing that matters for her. Nothing would stop her rise to achieve what she desired.