Chapter Text
“Today is fitness challenge day. That means you all get to watch me work out with added motivation.” Blue is standing in front of a chin up bar with a nasty looking dildo mounted under it. The dildo is attached to a machine and is a good three inches across and twelve inches long. It's also covered in blunt spikes.
“As you may have guessed, we’re doing chin ups today and this fucker, is going to be my motivation to keep a good pace and complete each set.”
Blue uses a stool to get her knees strapped into restraints that keep them spread and attached to the uprights while being able to go up and down the supports. She then secures cuffs on her wrists to the chin up bar. She then lines the dildo up with her cunt, forcing the first few inches inside her with a hiss.
“Alright, let's see if I can keep up.”
The machine starts once Blue knocks the stool away, it has a slow enough pace and Blue is able to find her rhythm as it slowly picks up speed. She’s able to keep the dildo roughly in the same position in her cunt as when she started. Then as it gets faster she starts falling behind and struggling to pull up as the dildo slips deeper and deeper on each up thrust.
“Fuck, fuck, it's big. Come on, you can do this Blue.” She lifts herself up one more time and the machine stops as the set is completed.
“That’s, that’s one set, three more to go.”
Soon the machine starts up again and Blue is forced to continue with doing chin ups at the faster pace that the last one ended on. She manages to keep up for the most part, the dildo only managing to get half way in before it pulls back to let Blue down from her chin up.
The rest of the sets go about the same until the end of the final set when the dildo stays extended, forcing Blue to maintain the chin up as her arms strain to keep her up.
“Fuck, shit, I’m slipping! Gaaaah!” Blue drops halfway down the dildo with a scream before catching herself and trying to pull herself back up. “Nnnngh! I can do this, just another few minutes.” Blue’s fingers finally give out and she drops hard on the dildo beneath her.
“Gaaaah! Nnngh! Fuck, that hurts.” Blue squirms, but is now stuck where she is until the timer runs out on the final stage and lowers the dildo back to its starting position, allowing Blue to relax as the stream ends.