I want Undyne to suck horse cock

I want Undyne to be alone and desperate for release.
I want Undyne to somehow find a horse and consider the thought of fucking it, the luring animalistic scent of it triggering her most carnal thinking.
I want Undyne to decide to risk it, thinking a huge horse cock would be perfect for the growing need inside of her, her mind too clouded by images of horse cock filling her hungry holes to care.
I want Undyne to try tasting it, instantly regretting sticking the nasty meatlog in her mouth, but to overcome by arousal to stop fellating the animal's disgusting cock.
I want Undyne to realize her mistake as the horse gets into it, thrusting powerfully into her throat, as Undyne panics and tries to pry her mouth from the horse's furious facefucking.
I want Undyne to freak out even more as the horse thrusts deeper, burying it's cock in her throat up to the hilt, the horse's grapefruit sized balls slamming into her face with each thrust, caking her face with its disgusting ball-sweat and thick musk.
I want Undyne to edge on blacking out as the horse relentlessly pounds into her face, the musk burning her nostrils as she starts to suffocate from lack of breathing room, fluids bubbling out of her mouth as she struggles to just get a single gasp of air.
I want Undyne to feel the horse makes it final thrust, burying its balls into her face as it pumps it's hot seed into her throat and belly, the lack of air and thick musk flooding into her nostrils finally causing her to go unconscious.
I want Undyne to awaken later, her whole body aching in pain, especially her bloated stomach and her throat, which still feels wide open.
I want Undyne to realize in horror as the horse still has it's cock mounted in her mouth, enjoying the new warm cock-sleeve it found.
I want Undyne to crying out in help, her plees blocked by the horse's member.
I want Undyne to panic even more as she feels something surge through the horsecock, the fluid eventually reaching her tainted tongue and revealing to her that the horse is urinating into her.
I want Undyne to weakly try to fight back, struggling to get free as the horse uses her as a toilet, releasing it's urine into her stomach, filling it up even more.
I want Undyne to scream and gasp, urine pouring onto her face as she tries to choke out the cock, disgusted beyond belief as she felt the disgusting cocktail of horse fluids mix up inside of her.
I want Undyne to endure this for days, her pleas getting weaker until eventually growing numb to the musk and taste, being fed a diet of horse piss and cum.
I want Undyne to be found weeks later, broken from nonstop use as a horse toilet, her eyes a deadpan gaze, her body reeking of urine and horse musk, her stomach a jiggling balloon of "horse cocktail"