FFF - Tell her to try it

“Try it,” you tell Curio, who looks pleased by that answer. She also looks pleased with the view of your body. Blushing, you clean up and get back to business.

The rhythm of doing work on the facility, eating meals, and sleeping isn’t exactly exhilarating, but despite essentially being a prisoner, you aren’t complaining. You worry about Chastity and QT. And you miss them.

Conversations over meals are a little strange with Curio and Shell. Shell won’t talk about the Sisterhood, no matter how much Curio probes at it. And Curio won’t talk about Vault F. That leaves the surface itself as the only safe topic. You can’t very well gossip about Annette while eating until Curio succeeds in making sure that she isn’t listening.

Curio shares some of her discoveries, and she listens with interest to your tales of the things you’ve gotten into since coming topside. Shell is willing, however grudgingly, to give advice and tips. She knows more about the surface than the two of you combined.

After one meal, you can feel your eyes getting sandy. There’s no day or night down here, but the three of you have agreed to sync your sleep schedule in a way that makes sense so that you can operate as a team. It’s Shell’s night to do the dishes. You stretch and yawn, preparing to retire to your room to take comfort in your right hand and fond memories of Chastity, Shell, Daisy, and whoever else you’re able to conjure up in your exhausted state.

Curio pinches your sleeve.

“Jane, I need to show you something.”

You like the sound of that.

“Sure,” you reply, following her into the corridor. Your footsteps echo in the quiet of the facility. You still don’t know your way around perfectly, but Curio seems to have no difficulty with that. She takes several turns, leading you to a door at the end of a narrow corridor.

Is this a good spot for some privacy?

She opens the door to reveal a hideous machine. The room is suspiciously free of dust. You can smell cleaning materials, and there’s an open toolbox on the floor.

“Have you been messing with this?” you ask Curio, peering at the machine.

“Guilty,” she replies with a little pink on her face.

“What is it?”

“You can’t tell?” She directs your attention to a padded, circular opening connected to tubes connected to…

“No way,” you say, covering your mouth and blushing. “You put your thing in there?”

“That’s the idea,” Curio confirms. “I believe that I’ve repaired it and I want to test it out. But I want you here for safety. In case something goes wrong.”

Curio is nothing if not practical.

“Sure,” you reply, stunned.

“Thank you. I think this is something that we can all benefit from,” she says, patting your shoulder. You watch awkwardly as she shrugs out of her lab coat, then takes off her pants and shirt and finally her panties. In only her bra, she approaches the machine and flicks a switch.

The machine hums to life.

You’re surprised that Annette is not objecting to this use of electricity. Interesting.

Curio hits another button, and the padded hole shudders. She twists a knob, and a small spout pours gel into her palm. She smears that around and into the hole.

“So far so good,” she says to you.

You smile and show her a thumbs up. You can’t help but look at her naked body. She has a few scars, but her skin is pale and smooth. She’s just more… pert than you would’ve expected.

Biting her lip, she pulls on her cock in a businesslike fashion until it’s hard. She’s not as big as you are, but it’s been several days since you’ve felt the touch of a woman. You like everything you see, and you aren’t feeling picky.

Curio positions herself and slides in with a soft squelch and an even softer: “Hm.” She glances back at you. “It’s cold,” she reports sheepishly.

She activates the machine. You hear an engine humming to life.

You’re about to ask if she has to move or if the machine does it for her, but you get your answer. Curio sighs and pushes her hips flush against the machine. She’s buried in it to the hilt.

The machine hums. She looks over her shoulder at you again.

“That’s nice,” she says. “Rotation. Squeezing.” She twitches. “Some suction there.”

“That’s interesting,” you reply, positioning your hands to hide your growing erection.

Curio smiles. “Pleasant enough, I suppose. Interesting invention. We could do with something like this in the Vault. With some padding here, I think.” She pats the metal front of the machine. “At least it’s warmed up now. Mm.”

It’s a long three minutes for you, watching every tiny reaction from her body. Finally, Curio starts to breathe harder. She stops giving commentary and closes her eyes, putting on a face of concentration. Her fingers grip the edge of the machine. Her legs quiver, then her bottom clenches and shivers.

“Ah!” she gasps, then lets out a shuddering breath. “Oh,” she adds, her hips twitching.

Taking a couple of deep breaths, she steps back, a little wobbly on her feet. A string of cum drips onto the floor.

“Mind the slipping hazard,” she says breathlessly, leaning on the machine. “Not bad. Very good. Quite good,” she murmurs a little dazedly. Before she even puts her clothes back on, she jots down several notes in her notepad, then cleans up the machine. As she reaches to power it down, you stop her.

“Can I have a turn?” Why be embarrassed after what you just watched?

She sighs quietly, then moves close to you, lowering her voice.

“That’s the thing,” she says. “Annette already has my DNA. Shell’s as well. She hasn’t got yours. Could be a bargaining chip later.”

She pulls away and watches you for a reaction.

“Having said that, I’d be more than willing to stand watch. For safety purposes,” she adds.

Use the machine?

Or don’t?