Chapter Text
“How–FUCK–much longer?” Donnie groaned, ass and pussy out, bent over with both hands clamped between his legs, doing a restless bounce on his toes then immediately regretting the move as it jostled his throbbing bladder that made his plastron bulge out with the weight of 2 ½ liters of flavorless juice.
He’d been waiting to use the bathroom all day. First his personal toilet in the lab had literally decided to rebel just after mandatory family lunch (Mikey was getting heavy handed with meal enforcement lately), having somehow developed sentience overnight and deciding it was too good for Donnie to use as a waste receptacle. Then, when he couldn't talk it into compliance, he went to use the main bathroom, only to find that Raph had broken the doorknob and no one could get in or out. With an exasperated sigh he’d manifested the necessary tools to liberate Raph, and his big brother had been so grateful that he’d given the softshell a big, bone crushing hug. Which, under any other circumstances, would have been great. Donnie loved Raph’s firm pressure hugs. But at that point he was already getting uncomfortably full, and he had to subtly press his thighs together to stop the urge that nearly overpowered him at that moment.
He'd managed to delay for a couple more hours, but every time he tried to get into the bathroom, someone or something got in the way. He’d tried to restrict his fluid intake, but while he was waiting out Leo, who’d decided now was the perfect time for an hour long soak in their luxurious Raph Sized bathtub with the hot tub function that would massage his shell with jets of soothing hot water–nonono, fuck, Donnie was not thinking about the way it would feel to release the contents of his bladder in a similar way–followed by his lengthy skin care routine, Mikey had shoved a bottle of ice cold water into his hand and told him he needed to hydrate or else.
One simply did not argue with Mikey when there was the possibility of Doctor Delicate Touch as a consequence.
Donnie had drained the bottle quickly under his baby brother’s watchful eye, and he could have sworn he saw a tiny smirk on the box turtle’s lips before Mikey produced an approving smile and left.
Now, after six hours of holding his bladder and counting, Donnie was starting to lose the battle. His nerves were frayed, his urethra burned and was starting to twitch from the effort of keeping back the deluge, and he was on the verge of tears from the certain knowledge that he was about to piss on the floor like a helpless little baby.
“C’MON NARDO!” he yelled, voice cracking. “PLEASE! I REALLY, REALLY HAVE TO GO RIGHT NOW!” He crossed his legs tightly and looked around frantically for literally anything he could piss in. Unfortunately there was nothing he could use, except for that big expensive vase over there that was a Hamato family heirloom sent over from Japan the last time Splinter had traveled there to find some missing scrolls.
Oh Spirits, forgive me, he thought.
“Almost done!” he heard Leo say cheerfully, taking his sweet time that Donnie simply did not have. Unless they wanted him to make a big puddle on the floor, desperate times called for desperate measures.
He moved as fast as he could without taking his hands away from his leaking slit (and he was embarrassed to admit that most of that moisture was slick) until he was straddling the vase. Then, in a motion so fast that it was a blur, Donnie moved his hands out of the way just in time for a thick spray of nearly clear liquid to shoot out of his pee hole into the large vessel.
The noise was loud, the hard jet of urine splattering along the sides of the vase and pooling at the bottom. Donnie exhaled a relieved gust of air and closed his eyes, losing all sense of the world around him.
A round of applause and wolf whistles snapped him out of it and made him burn with humiliation. He opened his eyes to see Leo, Mikey, and Raph all grinning at him, watching as the stream left his body.
“Gotta say, Dee, I'm impressed! You held that much liquid for waaaay longer than even Raph could with that massive bladder of his!” Leo remarked, moving in close to rub the residual bulge that his bladder had left protruding from his plastron. “That's really hot!”
Donnie whimpered, hiding his face, still pissing and unable to control it. “You all set me up!” he complained. Behind his hands, his face crumpled and he let out a pathetic hiccuping sob. “You–you know I hate it when you do that!”
Leo's voice grew softer as he moved his hand lower, holding Donnie's pussy open with his fingers, aiming the spray so it shimmered in the low lighting of the lair.
“But you love it too,” he mused, kissing Donnie’s shoulder lovingly. “You love it when we make you feel so much you can't control yourself. You love it when we watch.” As Donnie’s flow tapered off, Leo carefully blotted him dry with a soft cloth he’d summoned from somewhere with a small portal, and dipped his fingers between Donnie’s folds.
Donnie shivered and didn't fight it when Raph came over and picked him up with a low growl, and Mikey reached up and rubbed his ass, and Leo kept fingering his pussy the whole way to Raph’s bedroom.
As they all took turns eating him out and fucking him thoroughly, he had to admit that in this case, Leo wasn't wrong.
It was too bad about that vase, though.