Whatever this thing is, it's clearly strong enough you don't want to piss it off. If it wanted you dead, it would have already smashed through the window and gutted you where you sat. Hands raised in a placating gesture, you slowly stand up from your bed and cross the creaky wooden floor of your cabin to the back door, making sure not to look away from the elk creature as you do so. It nods once, seeing you've gotten the message, and gives an approving snort as you open the door. Now that it's satisfied that you'll listen, the aura in your mind lessens, though it's still there, ready to reassert itself if you try to run.
You nervously step outside and close the door behind you, heart pounding in your chest, every instinct in your mind screaming at you to run, to scramble away from the predator closing in on you. But it's clear you wouldn't be able to get away if you tried. The elk creature steps around the corner into view again, its face and upper body lit by the yellow flickering porch lights above, casting shadows across its form in the darkness. The shape of its horns spreads in silhouette over its face and chest, with the glowing white eyes piercing the gloom and sending shivers down your spine. It holds up one clawed hand into the light, mentally ordering you to stay where you are. You have no real choice but to obey.
It steps slowly towards you, into the light, revealing what you couldn't see through the window before. Where you expected vaguely human legs, instead it has the strangely bent legs of an elk or buck, covered in the same tan and white fur. Instead of toes or claws, they're capped by shining black hooves of a buck, two pointed masses in the front split down the middle, with a nasty-looking spike sticking out the back of the foot. The legs they support are still as muscular and powerful as the body above, bristly fur covering them up to the hips. You realize now that you've been staring, and look back up to its face, afraid you've upset it. Instead it looks all too pleased, and with a razor sharp claw directs your gaze back downwards, between its legs.
You don't want to look, and the psychic power in the back of your mind roils in irritation, ready to force you if necessary. With a defeated sigh, you look down. As you suspected, it's getting off on this, a curvy red cock jutting out of its animalistic sheath, bigger than your own by far. A sizable pair of testicles dangle below, ensconced in a sac covered in the same downy white fur that runs up its stomach and down the sides of its legs. You wonder what that fur feels like, before recoiling in alarm from the thought.
It, or rather he, brings a clawed hand down to the shaft, slowly stroking it as you watch, unable to look away. The scent coming from its shaft reaches your nose, sinking its hooks into your mind, maybe even your soul. It's intoxicating, thick, powerful. You start breathing deeper, the scent driving your wild, heartbeat quickening, feeling your own member harden in your underwear, drivng an embarrassed blush to your face. Why is this turning you on so much? Sure, you're not straight exactly, but this thing should be terrifying you, not whatever's happening right now. But your body is drawn to the scent, to this elk god's aura, wanting to get down on your knees to touch him, please him, worship him. If he hadn't ordered you to stay in place...
Apparently that last thought was enough proof to Him that you were ready. He grins even wider, menacing black fangs glinting in the yellow porchlight, the glow of His eyes receding slightly so you can see more of the face around them. With His one free hand, the curl of a claw-tipped finger, He beckons you forward. You hurriedly head towards Him, dropping down on hands and knees once you're closer, the dirt rubbing against your skin as you gaze upward into His face, the red curved rod betwen your face and His. He takes a finger and rubs it along the wet, rigid length, soaking the black pointed claw at the tip with His pre, magic swirling almost visibly as it radiates off of His member. Then, with a strange arcane gesture that casts an eerie blue glow over His hand, the elk god takes the claw and brings it to your cheek. With a perverse gentleness, He pierces the skin, droplets of blood beading up to meet his claw, mixing with the ethereal magic and godly essence soaking the black claw. A clap of thunder booms in your mind as your the spell latches onto you, blue lighting jumping across your skin, hooking into every part of your body.
He has marked you.
He has claimed you.
You can feel the changes starting.