How about one the other way around?
I want Dean to be all head over heels with Cas, but Cas doesn’t know if he’s gay/bi/whatever… then yeah, all that friendship-awkward-I-don’t-really-know stuff inbetween and finally le Destiel.
Dean Winchester swore it was love at first sight. For real this time. Castiel Milton was nothing like the others. He was gorgeous, for one, and popular and smart and funny and perfect. No way some grunge scraped from the ghetto could ever get Castiel to look at him twice.
But Lady Luck was on his side. Dean may not be good at much, but he was brilliant at English. Words always just came to him perfectly. Essays, poems, stories, it was like an extension of who he was. Castiel was absolute rubbish at it.
And somehow, their English teacher, Mrs. Harvelle, decided that no one could tutor Castiel better than Dean. The two had been meeting in the library every day after school. It was Dean’s favorite part of the day. To watch Castiel sweep in through the doors, trenchcoat billowing out behind him, dark hair mussed up just so. They’d been meeting for two months now, and Dean still got chills.
That doesn’t even begin to cover the flirt that Castiel was. He smiled and joked with Dean, brushing their hands together when they walked. They even went out a few times, catching a movie with some friends or study dates at each others houses. Castiel was a good friend, a great friend. But Dean wanted more.