You eventually come to, feeling clear-headed - the climax lifting you out of your lusty haze. Your sleeping herd, aroused and pented up from your foreplay, have tired and rutted each other out while you were tuckered out. You yawn and stretch, hoisting yourself up to a four-legged stance. You ponder on what you should be doing right now, before deciding to address the hunger that's gnawing at you since you... - 'can't remember the last time I ate' - ...Before your arrival at the park.
You move towards the door in an awkward trot that quickly grow more natural as your body shifts to accommodate the gait more comfortably. Your arms lengthens and calves shortens, thick black keratin tips your fingers and toes. Your breasts migrate downward, chest and hips expanding outwards with muscles as your human frame is lost under a layer of animalistic strength. You spend a few seconds staring blankly at the handle when you reach the door, before you remember to stand on your hindlegs and give it a tug with barely malleable hoof-hands.
Locked - You hear the rattling of chains behind the door.
You wrack your brain for a reason why the staff would lock you in. Granted, this is a stall built for reindeers like you or your herd. But you're a visitor to the park, you should be out there having fun with the rest of the visitors! What are you missing here?
Aside from them being humans and you a reindeer...
Are you even actually a visitor like them? You try to recall how you came to ride the ferry only to come up empty, any memory beyond the ferry ride to the park draws a blank - Even your time at the park are spotty and filled with gaps. You can't remember anything about your life before the park, aside from the lifetime of knowledge you've learnt and ingrained into your soul and body...
...And you're feeling a dark haze eating those knowledge away as well, without the relevant memories to anchor them. Instincts are pouring in and burying those human thoughts, eventually making you a reindeer with oddly human quirks just like the rest of your herd. Not that you're aware of this, you're currently trying to figure out what's missing in the gaps of your mind. It's getting harder for you to focus and think, getting distracted and wracked with the phantom feelings and images of you grazing and getting rutted by a stag - you press your hooves against a growing migraine, feeling it stretching out your face into a furry muzzle.
You're barely distinguishable from other members of your herd, aside from your ability to stand bipedal and your hand-like hooves.