Inadvisable coolant maintenance

You wake up damp with sweat and with a sharp pain in your abdomen - what the hell is this? It's as though a horrid pair of pincers, one jaw below and one above, is somehow gripping and impaling your lower abdomen… the invisible pincers twist and you wonder what you're dying of… until you wake up enough to realise that you need a piss and you need one right the fuck now.

You clench to avoid pissing yourself right there and then, making you go almost cross-eyed. It wakes you up enough to realise that you're inside the Titan's core chamber, and the Titan is sound asleep. There's no way you can rouse the Titan and get it to give you a lift to the walkways, and then run to the khazi on time… nothing for it. You perform the frantic dance of trying to peel off your clothes without drenching them with piss, until finally you have a clear path, nothing but air between your junk and one of the many coolant drains in the core chamber.

Finally, you piss… your shoulders and your feet ache with the strain of holding back, and then give way to relief, as though you had fine acidic wires packed between your muscle fibres, before they dissolved to nothingness as your torrent of piss thundered out. You were so full of piss that the stream is going everywhere, including on your clothes, not quite pulled out of the way enough. Your pisspipe resonates, as though sighing in sympathy with you, as it drops multiple streams - forward as well as down, shedding droplets from rivulets that cling to your flesh, like the way liquid clings to the outside of a glass when you pour it too slowly. You massage your lower belly to soothe away the ache in your protesting bladder, and you moan happily at the soreness and aches falling out of you and being replaced with relief and relaxation.

"Are you content in there, my engineer?" asks the Titan.

"Bgaagghh-fuck!" you exclaim, making an incoherent bark of surprise. You jolt and end up managing to get the last of your piss on your half-removed clothes.

The Titan quivers slightly with amusement at your startled reaction. At the Titan's size, that's quite a lot of movement for you. The little rivulets of piss that missed the drain chase your feet. "That was more of a reaction than I expected," says the Titan.

"I-" you begin. You're not sure how to continue. You've just pissed into the Titan's coolant overflow and managed to get it on your clothes too. How are you going to explain this?

The Titan must have heard the hitch in your voice. "Human, are you quite alright?" it asks softly. "You sound upset."

"…I'm sorry, boss," you manage to reply. "I've… pissed in your core chamber. There wasn't time to wake you and get myself to a proper toilet. I'm sorry, I'll clean it up-"

"Don't you worry about a thing," the Titan gently interrupts. "I should have taken this into consideration before I let myself fall asleep with you in my core chamber. Poor human - this must be embarrassing for you. Let's get you cleaned up." Relief! The Titan isn't angry with you or disgusted by you. The Titan brings its hand to the entrance of its core chamber. "On you get," it says.

You wonder what to do with your pissed-on clothes. Taking them off seems preferable to leaving them on and letting them cling to your skin as they cool, so you strip off before getting onto the Titan's hand.

"It'll be alright," the Titan says encouragingly, as if guessing that you're concerned about dirtying its gloves. The Titan brings you to one of the walkways and waits for you to step off. It peels off its gloves and sets them down on the walkway. "Sit on those," instructs the Titan. "I can't leave my little engineer to sit on the cold hard walkway."

You watch, admiring the intricacy of the machinery of the Titan's hand, as it picks up one of the empty vats waiting to be filled with coolant, as you would pick up a shot glass. The Titan instead fills it from the water tower in the corner of its hangar. You watch the Titan hold the makeshift bath in front of its core chamber and let a bead of purple core-energy spool off and into the vessel of water. The energy lights the water up purple and makes it effervesce briefly, then fades out. The Titan sets the tub of water, warmed nicely by its core-energy, on the walkway, then ever-so-gently picks you up and sets you in it.

You relax in the deliciously warm water as the Titan prepares to pressure-wash its core chamber, connecting the relevant hoses - looking like strands of spaghetti in the Titan's hands. You admire how delicate the Titan can be despite its size. It gives its core chamber a blast of soapy water with the pressure-washer, washing away any traces of your leavings down its drains. It replaces its gloves and then cleans those too with a soapy hand-wash, drying them with another waft of purple core-energy.

The Titan pets your head with a fingertip, and makes an amused static burr when you nuzzle into the touch. "Are you finished?" asks the Titan.

"I am," you reply. In truth, a whole bath was overkill for the amount of cleaning you needed, but you very much appreciate the gesture.

The Titan takes out its pocket-square and holds it out so you can step into it. The Titan wraps you in it like a cosy sausage and deposits you in its core chamber, through which it sends gentle pulses of warm core-energy. You sigh happily as you enjoy the rhythmic noise and the feeling of sanctuary and warmth. The Titan opens some of its core vents and lets the chamber suffuse with warm air, like a blast of sweet breath.

"Is that nice for you?" whispers the Titan.

You murmur incoherently in agreement, then gather yourself together enough to reply properly. "It is," you say. "You're so good to me, Titan. I feel as though I could sleep here forever…"

"As much as I enjoy having my dear engineers sleep in my core chamber," replies the Titan, "You need some proper rest in your own bed." The Titan reaches into its core chamber to pick you up, and you obligingly roll into its soft grip. The Titan conveys you to the walkway where you left your clothes earlier. "Grab 'em," instructs the Titan.

You're not looking forward to the walk of shame through the base, carrying your pissed-on clothes while half-naked…

"Keep still," says the Titan. "This is a delicate little manoeuvre."

You're aware of your surroundings turning completely black, the darkness encroaching in like a spoonful of ink dropped in a glass of water. You fall for the tiniest split-second as the Titan lets go of you, and you land on something soft and springy - your bed! As the darkness fades out, you see the Titan's fingers disappearing from view. You realise what must have happened: the Titan opened a little void-portal and teleported just its hand to your quarters. The Titan is really getting a lot better with partial teleports.

You throw your clothes onto the floor to deal with later, and delightedly snuggle into bed, clean and dry. How lucky you are to be an engineer to such a caring Titan…

Tomorrow evening, the Titan bids you stay back a while after all the other engineers have left for the day.

"Two days in a row?" comments one of your TV engineer colleagues. "Aren't you a lucky one." There's no envy in their voice. You and all the other engineers know that your Titan loves you all. You're happy for each other when the Titan takes a liking to a particular engineer and chooses them as its night-time companion.

Once everyone else has left, your Titan picks you up and pets you. You press yourself into its touch with delight. "I would very much like you to do that again," says the Titan, its voice edged with a purr.

You want to be sure you understood correctly. "You'd like me to piss in your core chamber again?"

"That is exactly what I want," confirms the Titan. "Let me carry your essence around with me, flowing through me."

"I… would love to do that for you, my Titan," you reply. "I love seeing you happy… making you happy… I'm a bit short on piss right now, though."

The Titan extends a fingertip and gently pushes you onto your back on the Titan's palm. "Let's fix that." The Titan brings its fingertip to your belly and pushes into your bladder, so gently. You gasp, and feel your crotch getting warmer and wetter in a way that's nothing to do with piss. "Need to fill your tank," says the Titan as its fingertip kneads your belly with tantalising gentleness.

With its other hand, the Titan picks up one of the stored vats of fresh coolant from the storage alcove, placing it on the walkway near you. Where is the Titan going with this…? The Titan pushes the lid off with a thumb, and dips its finger into the coolant. It brings its hand back in and presents its coolant-dipped finger to you, inviting you to drink up the bead of coolant before it rolls off the Titan's fingertip.

You accept. You lap up the fresh coolant and enjoy the weird effect it has on your physiology - first numbing, then cycling through warming and cooling once sensation returns. You feel the effect slide down your oesophagus and puddle inside you.

The Titan brings you another dose, and you drink down that one too. Then another, with less of a pause between them than before. Then another… "Are you full?" asks the Titan.

"Not yet," you say.

"Let's change that," says the Titan, rubbing your belly once more. Oh! You might piss yourself just from excitement if it keeps doing that… The Titan continues to bring you little drinks of coolant, until it apparently thinks better of it, and picks up the entire container. The Titan takes the weight of the container and holds it in front of you like a huge drinking glass, so you can sip leisurely. "Drink your fill," commands your Titan.

You lap up the coolant, feeling so indulgent… and so pampered, that you get to have this. This coolant is reserved for the Titan's use, and your dear Titan is letting you have as much as you want. You drink down coolant - a little too fast, and you have to belch to reset your stomach. …Oh, much better.

"You're getting extra-full for me," says the Titan approvingly. "Going to churn that for me and paint my core chamber with it, aren't you?" it teases. Ohh…

Eventually, you're satiated for now, and the Titan sets down the vat of coolant. Now it has both hands free, the Titan can devote its attention to stroking you and riling you up in its hands, rubbing your crotch with a fingertip and massaging your belly as your body gets to work turning all that coolant into piss.

"Such a soft little thing you are," the Titan croons as it pets you and plays with you. You'd love to stay here in the Titan's hands and enjoy being admired and massaged, but your bladder is starting to reach its limits… When the Titan pushes its fingertip into your crotch and the pressure is more uncomfortable than it is delightful, you tell the Titan to move you into the core chamber so you can unload. "Of course, my dear engineer," says the Titan, depositing you inside its core chamber. "Don't hold back, now."

You slip off the Titan's hands and walk towards the rear wall of the core chamber, already loosening your belt as you go. You pause to remove your legwear and underwear - how your bladder protests when you bend over! - then press yourself into the core chamber wall… and let yourself go.

You piss mightily, emptying your almost-full bladder right up against the core chamber wall. Your hot amber rivulets run down the metal wall, singing softly, and down your legs, painting wet tracks as they go.

The Titan purrs delightedly. "I can feel you in there."

You stroke the walls of the core chamber as the last of your piss trickles down the Titan's drainage holes.

"I can feel you… flowing through me," continues the Titan.

You feel so mighty, knowing that you've marked this colossal Titan as yours. You hug the rear wall of the core chamber as best you can, and you hear and feel the vibrations of the Titan purring… as well as the vibrations of its coolant system, carrying the payload you added.

"I'd like to do this again with you tomorrow," says the Titan. "Keep yourself hydrated towards the end of your shift."

This becomes a nightly event between you and the Titan. As usual, the Titan picks someone to stay behind and enjoy some quality time - but always tells them to wait outside the hangar first while the Titan 'speaks to you privately'.

"What do you and the Titan talk about every night?" one of your TV colleagues asks one day.

"It's between me and the Titan," you reply cheerily.

"Fair enough," says the other engineer. "As long as you and the Titan are both happy."

You resume working on your current task, until the Engineer Prime approaches you. "When you finish that task," says the Engineer Prime, "Come find me on level seven. I would speak to you privately."

"You got it, chief," you reply. You wonder what this can be about - if it's a new work task, why the secrecy? …Are they going to discipline you? Has the Engineer Prime found out what you've been doing each night?

With some trepidation, you find the Engineer Prime and accompany them to one of the control rooms for privacy.

"I wanted to check everything is alright," says the Engineer Prime. (What a relief!) "I won't ask what you and the Titan are discussing each night. It's clearly not affecting your work output or the Titan's battle capability. The Titan seems happy, and so do you. But I have noticed that you seem to be drinking more water than you used to. I wanted to check that that wasn't a sign of illness or over-exertion. Is the Titan… working you too hard? If you need me to intervene and give you a break from these nightly visits, just say."

"Thank you for checking on me," you say. "I assure you, everything is absolutely fine. If that changes, I'll let you know."

"I'm glad to hear it," says the Engineer Prime, displaying a smiling emoticon. The two of you exit the control room. "Now I just have to break the bad news to the Titan."

"What news is that?" you ask.

"Coolant change," says the Engineer Prime. "The Titan needs one, and you know how much it dislikes that. I'll probably have to do it myself to save anyone else from having to put up with the Titan complaining throughout." The Engineer Prime approaches a readout panel on one of the walkways and browses it. They mutter to themself -something backwards that you can't parse, but their tone is annoyed. You wonder if they're stalling for time…

The Engineer Prime gets the Titan's attention. "Titan," begins the Engineer Prime. "We can't keep putting it off. You need a coolant change, and it has to be this week."

"I want the human to do it," says the Titan. "Tomorrow night, after closedown."

The Engineer Prime seems pleased by this lack of resistance. "I'm a little surprised," they reply. "But I'll take it." The Engineer Prime addresses you: "Is that compatible with your plans for tomorrow? You can take a shorter shift another time to make up for doing maintenance work outside normal hours."

"Absolutely!" you reply. "I'd be delighted to."

"Thank you for being so accommodating about this," says the Engineer Prime. "I realise it's an unorthodox request, but I want us to seize any opportunity we can to do the coolant change with the minimum of fuss."

"Agreed," you reply.

The following night, you and the Titan are alone in the hangar after closedown.

Changing the Titan's coolant takes a little prep work. Before you can get at the coolant reservoirs at all, you'll have to open the access panels in the Titan's back, and to get at those you'll need to open the hidden apertures in its coat.

You board one of the cherry-pickers that emerge from the walkways, and pilot it to the right place on the Titan's back. If you didn't already know what to look for, it would have taken you a little while to find. You catch sight of your quarry: the pull on the hidden zip that will let you get at the access panel under the Titan's clothes. You get it open using the hooked pole stashed in the cherry picker for this very purpose, letting gravity assist as you drive the cherry picker downwards a little.

Next comes the actual replacement. You'll need to replace the older of the two sets of coolant cylinders inside the Titan, then flip the valves so that the coolant system can start using the brand-new ones that you'll shortly install. Meanwhile, the former dispensing cylinders will become the new collection cylinders, until the next change-over happens and the valves are flipped once more. (The valves and additional pump were one of the quality-of-life upgrades made to the Titan. Flipping a valve is much easier and quicker than entirely replacing all the cylinders every time.)

As you prepare to start removing cylinders, the Titan tells you to wait a moment. "Leave them where they are for now…" instructs the Titan. "And turn the valve."

"…And you know what'll happen?" you ask.

"Of course I do," replies the Titan. "Do it, my engineer."

"Anything for you, boss."

You get out of the forklift that you'd just boarded and into the cherry picker, driving it back over to the exposed coolant apparatus in the Titan's back.

Among the tethered tools in the cherry picker is the handle that lets you interface with the Titan's valves. You clamp it in place, and turn it… then drive the cherry picker back to the walkways so you can get a good view of what happens next.

The Titan squirms happily as the spent piss-infused coolant flows back through its pipes. "Oh, this must be just awful for my pipework," purrs the Titan. "What a wicked engineer you are, to pollute your Titan so…" The Titan hugs itself and wriggles in delight.

You match the Titan's tone. "You wanted this," you tell your Titan. "Does it please you, to feel me flowing through you?" Are you a little surprised by how well you're playing your part? Your hand moves closer to your crotch as you start getting more into this… "I've marked you as mine, my Titan, inside and out."

"I'm yours, my engineer," the Titan says with a purr.

"Let's get you cleaned up, boss," you tell the Titan. "Or the Engineer Prime will be on our case."

"Ohh, let's make it worth our while," says the Titan. "Pull out the collectors…" The Titan grips the walkway in front of it. "…and then reverse the flow again…"

You realise what a mess that'll make, but… "What my Titan wants, my Titan gets." Time to return to the forklift and cherry picker and carry out the Titan's request.

The Titan moans with delight as you pilot the forklift and pull out the current pair of dispensing cylinders, leaving trails of foaming residue as they spill. You've never known the Titan be this happy about a coolant change! You change from forklift to cherry picker, and the Titan quivers with anticipation as you approach.

You turn that valve once more, and all that spent coolant begins pouring out of the Titan, falling until it flows down the Titan's legs.

You piss yourself in sympathy.

You and the Titan both tremble with delight and sigh luxuriously as you release your hot fluids, letting yourselves go as warmth blossoms down you.

"I need to get you cleaned up properly, Titan," you say. "Can you start yourself off with the pressure washer while I take care of myself? Then I'll flush out all your coolant pipes properly."

"Anything you say, my engineer," replies the Titan. "I defer to your expertise." The Titan helps itself to the pressure-washing equipment, blasting all the spent coolant residue off its legs and onto the hangar floor, where the drains will take care of it.

Since that first incident in the core chamber, you'd stashed a wash-bag and a change of clothes in one of the control rooms, just in case. You thank your past self for their foresight as you peel off your soaked legwear and head for the control room. As you take care of yourself, you ponder just how much you enjoyed doing that…

But that'll have to wait. Right now, you need to attend to your dear Titan. Without a supply of coolant in its system, the poor thing will overheat. Clean and tidy, you head back to do your duties as the Titan's engineer.

"You're being very brave about having your panels open, my dear Titan," you comment as you load the forklift with a canister of cleanser.

"For you, my dear engineers, I can endure anything," replies the Titan.

You drive the canisters home - two fresh cylinders of engine shampoo, specially formulated for the Titan, and two clean empty vessels to be the new collectors. "Almost there," you tell the Titan as you board the cherry picker and set the valves off.

The Titan purrs sleepily as the cleanser flows through its pipework, gently scouring it clean. Meanwhile, you use the pressure washer to hose down the Titan's back where it couldn't have seen what it was doing. The Titan rumbles in delight as you work.

"Last cylinder change for the evening," you tell the Titan. "Then I can close you up, finally."

The Titan murmurs its assent as you begin your task. You work with forklift and with cherry picker to install two new cylinders of lovely, freshly-mixed coolant.

"I know I complain about coolant replacement," says the Titan, "But I do like this part where you give me the fresh stuff." The Titan purrs and shivers a little, as if enjoying an internal massage.

"I'm glad to see you enjoying yourself," you reply. "But I need you to keep still so I can close all your panels… There we go." You work to close the Titan's access panels and re-zip its coat closed.

"Thank you for indulging me," says the Titan.

"I could say the same!" you point out. "My dear Titan, I've had a lot of fun."

"Come on over here when you're done with the machinery," says the Titan. "I need to hold my eager little engineer some more."

You ensure the forklift and cherry picker are all put away and parked, then make your way along the walkways and gantries to the Titan's front, where it picks you up and holds you, giving you a gentle hug between its palms.

"Dear little soft thing," murmurs the Titan as it pets and strokes you. "Would you like a little more fun before you go?" The Titan starts moving its fingers into place to massage your belly and rub your crotch…

"You know I would- ah! Ohh…" you gasp.

"Of course I do," says the Titan, grinding its fingertip against your crotch. "Your Titan knows what's best for you."