The second and final part. Please see part 1 for summary and content warnings.
Sharlotte woke in the morning with a full bladder and a fuzzy head. She stumbled out of bed, getting all the way to the bathroom before she remembered that, for the time being, peeing was something that she was receiving some very personal assistance with.
She paused in the doorway of the bathroom, dithering, and then made her way over to the toilet. This was where she was used to doing her business, so to speak, and so it seemed simplest to continue on that way, even if her current arrangement made it feel...awkward.
It took a second or two of trying to empty her straining bladder--and a momentary panic that the creature would only allow urine to pass on some esoteric schedule of its own devising--before finally, with a visceral twitch and thickening of the tendril inside her urethra, she was permitted to relieve herself.
The movement of the tendril evoked a sudden, deep pleasure that startled a loud moan from Sharlotte, making her shudder and her toes curl against the vinyl floor of the bathroom as the pulse and the ripple massaged nerves that had never been so directly stimulated.
"God," Sharlotte gasped helplessly, gripping her knee tightly with one hand and the edge of the bathroom counter with the other as her arousal, briefly banked by sleep, came roaring back. "Fuck." She shifted and squirmed and did her best not to hump the air on the toilet seat while pissing, because that seemed too deranged even for her already-insane situation. When the tentacle inside her pussy woke up and curled lazily inside her as well, though, it was a close fucking thing.
By the time she had fully emptied herself, she was loose and tingling, her body fluttering eagerly in anticipation of a morning orgasm to follow up that fantastic tease.
Sharlotte thought yearningly of the fried vibrator, still lying on the floor beside her bed, and groaned in frustration. She wanted that morning orgasm so bad; she and her body were very much on the same page there. But she couldn't think of any way to make it happen.
Besides, she had to stay focused on her task, which at this point was just to keep her head down and behave as normally as possible until she--and the specimen--could be extracted.
So, rather than sit around feeling sorry for herself, or trying fruitlessly to masturbate, she got dressed and made her way out into the public areas of the lab dormitories, trying not to think too hard about whether she was walking weird. Surely, if she thought too hard about it, she would just end up looking even weirder. She headed for the canteen for breakfast.
"Sharlotte!" someone exclaimed as soon as she walked into the room, startling her. It took her a moment to recognize the woman waving frenetically from the food line as her new friend who had unintentionally witnessed her minor breakdown the day before.
"Oh. Uh--hi," Sharlotte said as she walked over.
"It's Anna," the woman supplied, and Sharlotte winced. She'd hoped she'd been more subtle about not remembering her name.
"Sorry. I just--"
"No, no, no worries! Are you feeling better today? You look so much better!"
"Thanks," Sharlotte said, tugging at her ponytail self-consciously and wondering just how bad she must have looked when Anna had walked her back to her room. "Yeah, I'm--I'm feeling a lot better. What's good to eat here?"
"Oh, well, the omelettes are good, they'll put just about anything in them. I'd stay away from the waffles, but the oatmeal is fine, you know, it's oatmeal--"
Sharlotte nodded along, letting Anna chatter on and loading up her tray roughly according to Anna's recommendations. The other woman was happy to hold up the conversation by herself for most of breakfast, and then even walked with Sharlotte to the desk she'd been working at the day before, where it turned out they would be working together for most of the day: Anna analyzing data for some tests that she'd been working on the lab, and Sharlotte finishing up the safety and other on-boarding training modules that she'd failed to finish.
It was easy enough, and--aside from the occasional odd shift or squeeze from the creature, which Sharlotte was getting more adept at ignoring--almost normal-feeling. For the first hour or so.
And then Sharlotte went to the ladies' room, and Anna decided to get up and go along with her, stepping into the next stall. Sharlotte was so focused on relaxing and coaxing the creature into allowing her to let down her urine that she only realized a second before it happened that...
"Ohughh," she grunted when the tendril flexed and twitched and expanded, then immediately slapped a hand over her mouth, her face flushing.
The unmistakably sexual sound echoed through the bathroom and was followed by a lengthy silence.
Finally, Anna delicately cleared her throat. "Um. You okay over there?"
"Yeah. Just--just more cramps," Sharlotte said weakly, then bit her lip on another plaintive squeak as the tendril shifted inside her and set her clit throbbing.
"Right..."
After that, Anna stopped talking to her as much.
And Sharlotte became a lot more conscious of when she used the restroom.
She was able to sneak away at lunch to use the toilet in the privacy of her own quarters, though it cut her lunch break pretty short. In the afternoon, though, she couldn't think of an excuse to go anywhere else, and ended up waiting--and waiting--until Anna finally left to go grab something from the lab.
At that point, Sharlotte was so desperate that she didn't even bother to make it into a stall; she just hurried into the restroom and leaned against the closed door behind her, covering her mouth and letting out a strained whining noise through her nose as the combined relief of emptying her bladder and pleasure of feeling the thing expand and flutter inside her urethra brought her almost to the edge of coming.
That was the last chance she had that day; Anna lingered after that, not giving Sharlotte any more opportunities to sneak off. She briefly considered timing a pee break right after Anna had taken one so that Anna couldn't possibly happen to follow her in--but then she worried that might seem like she was up to something even weirder. Instead, she just held it for the last three hours or so of the day.
By the time she rushed back to her quarters, she was throbbing again: her bladder, her pussy, her clit, all pulsing with one overstretched heartbeat. She stopped and stooped over in the entryway to her room as the door slid shut behind her, reaching up her skirt to press at the alien creature between her legs, and let out a gulping groan at how the pressure mashed the thing's soft parts up against her clit.
"God, I...fuck. I need to fucking come," she complained. She wriggled her fingers and moaned as the creature allowed the gentle movements to transmute to her throbbing sex. The pressure in her bladder spiked, and it was urgent--but, at the same time, it made her feel that much closer to orgasm.
Maybe it was getting her closer to orgasm, she realized. Her bladder was providing pressure inside of her, and--she placed a hand on her abdomen and pressed down tentatively, shuddering at the twinge of discomfort and the following pulse of pleasure--there were erogenous zones near it, weren't there?
That could be the key. That could be the secret to getting some relief from her building frustration. Maybe she needed to...to try and masturbate right now, while her bladder was full. And, at the critical moment, if she let her bladder loose and made the thing thicken up inside her...
Just the idea made her gasp, her cheeks flushing with embarrassment and arousal. Sharlotte stumbled towards her bed, shaky and frantic, and then climbed onto the mattress and dragged one of the pillows to herself, stuffing it between her knees and grinding down onto it.
The gentle, rocking pressure immediately overtook her, making her eyes roll back and a long moan fall from her mouth. With each movement, the creature's soft cilia rubbed and caressed her clit; the tentacle shifted just a bit inside the opening of her vagina; the tendril tugged lightly inside her urethra.
It was so little stimulation compared to what she usually needed to come, and yet, at the same time, it was so much, building on the repeated edges and denial that she'd suffered over the past forty-eight hours, the constant rubbing of this creature on and in her that whole time...