Rae and Lola come to terms

As soon as Lola's frenzied fucking had slowed and eventually stopped, Rae pulled herself reluctantly off of the massive shaft she was impaled on. Lola fell backward, and Rae slumped forward on her stomach.

"Hey Lola? Are you still... like, you?"

"Of course, dingus. Who else would I be?"

Rae lifted herself and sat up on her sister's bed, facing Lola, who was lying down.

"Well I don't know, but you didn't even seem fucking human there while you were railing the shit out of me," Rae grinned. The thought of what they had just done was already sending pangs of perverted pleasure rolling through her.

"I didn't- well, I don't think I am human any more," Lola grunted. "That felt so fucking good, Rae. This fucking cock feels amazing!"

"Mmm can't deny that," Rae groaned, biting her lip. "This should be weird though, shouldn't it? Why don't I feel weird about this? Do you feel weird?"

"No, but who fucking cares? If I can fuck like that all the time I don't give a shit how it happened or what I am!"

"So the fact that a worm shot out of my cunt and injected you with... something... and turned you into a raging transsexual fuck-beast doesn't bother you at all?

That was the first thing that seemed to give Lola pause.

"Well I mean, when you put it that way..."

"This is all very interesting, if I could offer some clarity?"

"Yes, Master?"

"Fucking what?"

"I'm not talking to you, Lola," Rae replied, annoyed.

"Who the fuck else is there??"

"Just shut up for a second, would you? Master, what were you saying?"

"When I converted your sister, I made her into a Vessel. It was the most I was capable of at the time. A Vessel is given a penis, and testicles that produce a powerful corrupting agent. Your sister has the capability now to create Broodmothers."

"And... what is that?"

"Broodmothers are the mothers of my kind. A Broodmother takes corrupting fluid and transforms it inside them to create slugs that can convert people, like you've been."

"O... kay..." Rae's eyes narrowed.

"What!?" Lola asked, exasperated.

"I guess he says you're a Vessel?"

"A vessel for what?"

"No, like that's what you're called. You're a Vessel."

"I still have to be a vessel for something, don't I?"

"I don't know, Lola, maybe that massive dick!?" Rae shouted back.

"Mmm... good point..." Lola looked down at her cock, and touched it. Rae saw fire ignite in her eyes, and knew that she was losing their window of clarity, though the fast-growing lust inside her didn't seem to mind that at all.

"Mmmmm," Rae moaned, as her libido surged again. "Lola, we should probably figure out what we should actually do now..."

"Later," Lola grunted as she lunged toward her delicious-looking sister.

Rae squealed as Lola knocked her back on the bed, her hand pushing down on Rae's throat and her cock wasting no time impaling the tight cunt below. They began to fuck, the pace increasing quickly. Then, the door opened.