50 Shades of Cowboy

Castiel isn't familiar with gay sex, and decides Dean should be the best tutor, sharing a 'more profound bond' and all. So Dean agrees to teach him, but what starts as a few simple kisses has the potential to turn into- well... I'll leave the rest to your imagination. M FOR A REASON OBVIOUSLY! Destiel/Sabirel (language, smut and such) some things subject to change.. Sorry its short