An immortal in Supernatural - Season 1 - Dean x Male Oc.

CW:
- Mainly 16+, and I'll add an 18+ warning when needed
- Gay gay homosexual gay moments and some smut
- Mild 'sewer slide' thoughts and maybe actions
- Lots of swearing
- Based on the TV Show Supernatural so if you've seen it then you'll know what type of content will appear.

Hello there! This is my first ever fanfic. This will be a Male Original Character x Supernatural, and it will mainly be a Oc x Dean, but there is a possibility there can be an extra character included. It won't be a harem, but it could be a polyamorous relationship.

The story begins in episode 4 from the first season of Supernatural, with our main character taking the same airplane as the Winchesters.
Our main character is called Ryan Adler, who is an immortal human with quite useful abilities. He's been alive for quite a long time, but has forgotten most of his early days, with his earliest memory being when he was a famous gladiator and centurion in Ancient Rome. After many many years of wandering, he finds himself in a fun little situation, where he finds the type of jobs the Winchesters do.
With all this new knowledge, a non-existent appeal for his life and absolute boredom, he decides to join the Winchesters trying to find something fun to do and maybe entertain himself for a couple of decades. What will happen with our immortal friend in this new adventure? Read and find out!

Since there is a new character there will be changes to the original show and some completely original scenes. Hope you enjoy and sorry for any grammar or writing mistakes (english isn't my first language - feel free to correct me when needed).

All characters, main plot and situations are original from the TV Show Supernatural created by Eric Kripke and his team. The only characters that are mine are Ryan (MC) and any other character that I might add and doesn't appear on the TV Show.
Credits go to their respective authors for the media used.