The Stall (Sounding/Catheter)
The bull groaned loudly as he pushed his way into the restroom, he was bewildered for a second there were some stalls along one wall, a couple sinks, and no urinals. Thinking nothing of it the desperate bull pushed his way into the first stall.
The door locked behind him with a motorized click, and then that's when confusion hit. There was no toilet, no urinal, nothing that resembled the usual toilet furniture. Instead there was a stand in the middle of the stall with a hole in the very center of it. On the side a table and a hanger.
"New user detected. Identifying..." Came a mechanical voice filled the space. "Default settings loaded, unable to identify user. Please undress." The bull quickly turned around and attempted to open the stall door but it didn't even budge. "Please undress, the door will unlock when finished."
The bull began to panic. "Help! Anyone out there?" He pounded on the door of the stall. But there wasn't a peep. No sound. Checking his phone he saw there was no service, not even emergency service. "Please undress." The voice persisted. Turning around the bull grunted heavily and eyed up the machine in the middle of the room. "Fuck..." With out much other choice the bull quickly stripped leaving his shirt, pants, and jockstrap on the table next to the door. "Please step closer to the receiver in the center of the stall."
Following the machine's instructions he stepped closer and the device seemed to adjust itself. "New User height, 183 centimeters. Crotch height 91 centimeters. Data saved. User is sheathed. Adapting. Saving." A panel in the center of the machine slid back and to the side and a new panel appeared taking it's place, replacing the center hole with an angled hump with a hole in the bottom.
"Please step up to the machine. Insert your sheath into the hole in the center. All equipment is sanitized between uses." Stepping up the bull pressed his fuzzy sheath into the hole feeling it slip in with ease. "Adjusting... Please lean into the machine." Following the instructions the bull leaned forward as padding rose from the floor to meet him. He was able to comfortably lean into the device.
Unseen and unheard the other half of the machine rises behind the bull and slides forward into position trapping the bull's lower half. "What the fuck! No get off!" The bull began to struggle. "Please don't struggle, the process will only take a few moments." The bull didn't care about the words of the machine and continued to struggle.
But when he felt something pressing against his sheath he yelled again, redoubling his efforts to get out of the machine's grasp. "Stage 1." The machine's voice filled the empty space between bellows.
The bull could feel something invading his sheath pressing down into his urethra. The feeling caused the bull to grasp at a pair of handles on the back of the machine. He felt tiny tendrils pushing down into his urethra, centimeter by agonizing centimeter the bull groaned and grunted. He'd never been treated this way. His cock hurt because of the invasion but he couldn't help but buck up into the machine. When the tendrils found the sphincter muscle of his bladder his eyes went wide as they pushed it open. "Draining."
The bull gasped as he felt his full bladder, the whole reason for his coming into this restroom, slowly deflate. His piss being sucked up by the greedy machine. "Defaulting to setting 1. Directing flow to organic processing." The bull panted and looked up. "Organic processing?" His hips bucked again against his will.
"Volunteers who process urine further before disposal." The machine replied to the posed question. The bull gulped, somewhere in this building someone was getting belly full of his piss, the thought kind of aroused the bull. His thoughts were interrupted when he felt the tendrils pulling out of his bladder and back through his cock. "Ooooh fuuuck."
"Arousal detected, beginning phase 2." When the tendrils full withdrew, whatever was around the bull's cock began to apply suction pulling his cock from his sheath fully into a sleeve which began to pulsate around his member. "Default setting 2 ejaculations." The bull's eyes widened and he tried to pull away again. "No shit!"
He growled and tried to push himself away from the front half of the machine, but who ever built the thing had built it for beings much stronger than himself. His struggles though quickly lost power as the milker worked his cock over, the slick warm interior giving his torpedo like erection pleasurable waves of sensation. "Oh godssss." He moaned as the sleeve milked his cock, he couldn't help but buck his hips more trying desperately to push more of himself into the sleeve. "Detecting possible orgasm." The machine picked up it's pace and caused the bull's cock to explode filling the sleeve with hot thick cum. "Orgasm, defaulting to setting 1."
The bull panted as he came down from his first orgasm and even though he just had a mind bending orgasm his cock wasn't deflating, in fact it was just the opposite, he throbbed in anticipation for the next round. But he was interrupted when he felt something warm and wet press against his tail hole. "What the fuck!" He was shocked at first, but groaned loudly as he felt the tapered tip pressing into him. "Shit, shit, shit. No... fuck." His voice echoed huskily as his hole was penetrated by the toy.
"Inserting." The large toy in the bull's rear pressed against his prostate causing him to moan, but that didn't stop it, no the dildo kept going until nearly 18 inches of it was inserted in his tight rear. "Fuuuck..." He panted and leaned over the machine. "Depositing load one." The bull looked up again wide eyed as he felt something warm fill him. "Oh fuck... that's my own load isn't it?" He whimpered. "Yes. Post Orgasm Setting 1 deposits the user's ejaculate into the user's colon. Resuming milking, adding prostate stimulation."
There was a new hum as the toy began to slide in and out of the bull's tight rear, teasing his prostate. "Oh gods." The sudden resumption of the milking of his cock caused the bull to bite his lower lip. "Holy fuck." The machine was relentless, milking the bovine's member, the rhythm was fast paced and the synthetic skin texture of the sleeve was almost enough to make the bull cum right away.
But he held on resisting the urge as he now ground his teeth and bucked his hips. "Depositing new ejaculation from user C-B30. Species wolf." The bull grunted when he felt more hot cum being injected into his insides from the dildo grinding against his prostate. The sudden flooding warmth causing the bull to bellow out as his second load filled the milking sleeve.
"Fuck!" His fingers dug into the padded handle bars and his hips ground into the machine even as he felt his own load flooding deep inside of him.
"Process complete! Cleaning the user and withdrawing." The bull slumped down on the machine and panted his body trembling from the milking. He barely noticed the warm cleaning solution being used on his intimate parts or the warm air drying him off. "Thank you for using Stall Sexual Health for your sexual health needs. Please take your tag new user before exiting the stall, remember you can always adjust your settings online at stallhealth.pub or at any of our kiosks."