Room of Requirement
They were in the Room of Requirement, where they couldn’t be disturbed, and where they could leave their messes and the room would take care of the clean-up. For them, all they’d really needed was a big, comfortable bed, although the room had also provided some shelves full of diapers, books about wizarding history as related to bathroom habits as well as spellbooks related to their kinks, armchairs, pillows, rugs, and a roaring fireplace. In all, it resembled a large and cozy bedroom, until one looked a bit closer.
Ginny and Hermione were on the bed, still clothed. They’d spent the day holding everything in, and now it was evening, and they were both exceedingly desperate. Hermione moaned as Ginny pulled her onto her lap and stroked her gently down the back. She could hardly stay still.
“Here’s what we’re going to do,” Ginny said, “I’m going to tell you when you can let go, and I want you to do it just like this, in your clothes, on my lap. If you do as I say, and hold it til I let you go, I’ll reward you. If you can’t hold it, you’ll have to wait even longer and fuck me first. Sound alright?”
“Yes, Ginny,” Hermione said immediately. She loved this dynamic, and Ginny knew it. And she wasn’t about to delay any further than necessary when she was absolutely bursting.
“Good,” said Ginny, and put a hand between Hermione’s legs, stroking teasingly lightly at the seam of her tights, sending shivers all up Hermione’s body and making her ache to let out a spurt of pee. “I saw you at lunch, how you drank all that pumpkin juice with that spicy curry. You must really need to pee, eh?”
Hermione whimpered and screwed her eyes shut, trying to grind her pussy into Ginny’s fingers, but at this, Ginny withdrew. “Ah-ah—none of that. You don’t get to fuck yourself to distract from how much you have to go. And I bet that curry’s gone right through you as well, hasn’t it?”
“Please, please, let me go,” Hermione moaned, “it’s too much, I’m too full, it’s not going to stay in much longer!” Not only was she on the verge of leaking pee, but she could feel her full bowel, the shit pushing at her entrance, wanting to come out. She knew the smallest of pushes could send it straight into her pants.
“Not yet, baby,” said Ginny, and moved her hand so that it was stroking up and down Hermione’s ass, probing slightly into the crack so that Hermione could feel her fingers ghosting over her asshole. Again, she couldn’t help grinding down, desperate for relief.
“Oh, please,” Hermione gasped, feeling her control waver.
“Please what?” Ginny said, cupping Hermione’s pussy in her hand now, giving it a gentle squeeze.
“Please, mummy, please tell me I can go,” said Hermione. This was something they’d discussed prior to today, in a conversation about what else they were each into in the realm of kink. This first time using it went straight to Hermione’s vagina, and she felt a rush of wetness and heat.
“Good girl,” said Ginny, and began to kiss Hermione’s neck, pulling back her shirt, then down her clavicle.
Hermione squirmed, panting. By now she was rocking back and forward on Ginny’s lap, desperate for any kind of distraction and relief from the near-painful sensations of keeping back her pee and poop. “Please, mummy, I can’t hold any longer, I’m about to wet myself, I’m going to dirty my knickers, please, I need to go so badly,” she gasped.
Ginny trailed her kisses up to Hermione’s jaw, then her ear, making Hermione squeal in pleasure and need. “Alright, sweetheart, since you’ve been so good, I’m going to let you go now. Pee for mummy. Poo for mummy. Right into your pants, love, you’ve done so well.” She kept her hand between Hermione’s thighs, her thumb tapping on her clit, other fingers reaching back to her asshole.
Hermione couldn’t have lasted a second longer. At Ginny’s words, she relaxed, falling forward onto Ginny’s shoulder and clutching her tightly, arms around her. Her pee began spilling out of her at once, hissing into Ginny’s hand and then onto Ginny’s lap, soaking both of them. She cried out, a wordless cry of relief and pleasure at the feeling.
“That’s right,” Ginny said soothingly, “you’ve done brilliantly, just let go now.”
“Fuck!” Hermione gasped out, as her poo began to ease its way out of her. It filled her knickers slowly, as holding it in all day had made it slightly harder than usual, and she had to push several concentrated times to make it keep coming. Ginny’s hand still below her gave enough pressure so that it mushed back into her ass, spreading across her cheeks. “Mmm!” she grunted, forcing the last bit out.
“Oh, well done,” said Ginny approvingly, “what a good girl, just done such a big shit for mummy. Keep going now, don’t hold anything in.”
After her poo had all left her, pee rushed out forcefully again. “Mummy, I’m wetting myself,” Hermione said into Ginny’s shoulder, trembling with pleasure and desire.
“Yes you are, my love,” said Ginny, “you’ve covered me in it as well, so lovely and warm all over my lap.”
Ginny started to rub at Hermione’s clit harder, now, and Hermione moaned loudly at the sensation of Ginny’s hand through her soaked knickers and tights. With her other hand, Ginny grasped Hermione’s ass hard, fingers pushing through the clothes and the poop to Hermione’s asshole. With one hand there, pushing at her entrance, and the other hand on her pussy, working her clit, Hermione orgasmed hard, clenching Ginny’s shoulders convulsively, unable to contain her shriek of ecstasy.
“That’s right, come for me, good girl,” Ginny said, keeping up her movements as Hermione spasmed on her fingers, until at last she collapsed, loose and sated, and Ginny had to hold her body up for her.
“Mmm,” Hermione hummed into Ginny’s hair, unable to make words. She still shook with the aftershocks of her orgasm, and Ginny stroked her back as she recovered.
“Good girl,” Ginny repeated gently as she stroked.
“Thank you, mummy,” Hermione said when she could.
“Of course, darling,” said Ginny.
“May I,” said Hermione, peeking up at Ginny from under her eyelashes, “do anything for you now in return?”
“You may,” said Ginny, a wicked smile spreading across her face.