You used to be a normal Human boy, things were always the same old boring stuff, wake up go to school, do your homework, eat and sleep, go to the bathroom if you needed to, go to the doctor if needed and all that other stuff but eventually that will all change soon, something incredible is about to happen to you.
You woke up & immediately felt something was off. You feel pain coming from behind you, but not exactly from your butt but from an extension from it. like you have a Tail, "What the hell?!" You yelled shocked at the pain from the alien sensation. You go to the Bathroom, take off your shirt, unzip your pants and drop it and take off your underwear until you are completely naked, you look at your totally nude body in the mirror and see that you indeed do have a Reindeer's Tail. Thinking that it is only an illusion you reach for it but to your dismay, you discover it is connected to your butt just above your anus and you also to your dismay wiggle it to see if it wiggles and you not only see it wiggle but you feel the muscles in your butt and tail that control it wiggle as well and the tail wiggles with them. "AAAAAHHH!" You scream. "What are you screaming about?" Your dad asked you. "I got a Reindeer's Tail on my butt just above my Anus" You yelled at him. "So?" He asked. "What do you mean so?" You asked puzzled. "You got a Reindeer's Tail on your butt just above your anus?" He asked. "I'm not supposed to!" You yelled at him confused by his reaction. "You've always had a Reindeer's Tail on your butt just above your Anus." He told you leaving the room. "No I haven't!" You told him.
Later you checked your Student ID picture (for some reason) & got a shock. On it your student picture showed that you had a Reindeer's Tail just above your anus on your butt. WTF?! You were forced to go to school & everyone you told about your Reindeer Tail didn't think it was odd you had them. It was normal to them that you had them. WTF?!. What's weirder was all your pants & underwear was modified for your Reindeer Tail. You also at times feel it wiggle and wag. Later at Biology and Anatomy class you are asked to strip naked and you are forced to, you try to cover your Reindeer Tail with your hands but you are unable to, and some students volunteer to touch you and also your tail and when they do your tail wiggles from the stimulation and they inform the class of your unique biology and anatomy. You couldn't be anymore embarrassed you think. Later you were sitting at lunch with your friend Max. "What's wrong [your name]?" He asked you. "I've got a Reindeer Tail that is on my butt just above my Anus and it wiggles whenever I get excited or stimulated." You told him. "You've always been like this." Max informed you. You sighed "And you seem to remember me always like this like everyone else.
Eventually you return home and go to bed, you lay on your side so that you do not lay on your tail and cause yourself pain and hurt yourself. [God. I must look like a freak, a Human with a Reindeer's Tail on his butt just above his Anus. And no one sees any of the changes as odd. In fact everyone remembered me as always that way. And reality seemed to be changing to reflect that. What do I do? Is there anything I can do? Why is this happening to me? ] You thought. This was so odd & worrying to you. You cry tears out of your eyes for a long time, for many hours even. Eventually you get tired, and sleepy and you go to bed and eventually fall asleep.