-Dean's POV-

Okay, I have an issue.

Once upon a time, I was sleeping with women, right? Well, then along comes a fricking angel who pulled me out of hell. Now that in itself isn't the issue.
The issue is that this angel is probably the most impossibly adorable one Heaven had.

I thought I was straight, but along comes Cas, proving me otherwise. Great.

"You uh... You good, Dean?" Says my little brother, Sam. "Peachy." I say back, with sarcasm. "...Dean, what? What the hell could you possibly be mad at now?"

-Sam's POV-

I get really sick of his shit sometimes. If he would just talk about his feelings-

"Fine. But don't you dare make fun of me." I look at him and say "Okay?" moving my hand telling him to elaborate. "I'm... Dammit, Sam! I'm in love, okay?!" I was not expecting that, but I think I know who it is. I mean, they're completely blatant about it.
It seriously took Dean this long to figure out?

"With Cas, you mean." It was more of a statement than a question. He looks at me bewildered and says, "How the hell did-?" I cut him off by saying, "Oh, come on Dean. It was obvious. You two always act weird around each other, so I just assumed you were dating. I didn't realize you didn't know yet." He just scoffs and begins to walk away when said person arrives.

-Cas's POV-

I teleport to the Winchester's Impala because I knew that's most likely where they are. When I get there, I notice some tension.

"Hello Dean. Sam." I greet them. Sam waves but Dean doesn't respond. He just stares at me shocked. "Dean? Is everything okay?"

Being an angel, I'm not supposed to fall in love with humans. I broke that rule almost immediately when I saw Dean's soul in hell. Now, since I am an angel, I don't really care about whether I am in a male vessel or a female one. Angels don't usually have a specific gender, after all.

"Yeah, Cas. I'm fine." He says, though I can tell he's lying. "Well, I'm going to go help Bobby with this job. See ya." Sam says. Dean looks at him for a moment but eventually turns back around.

"Dean, what's bothering you?" He sighs and says, "Cas, why are you so fricking cute?" I stare at him for a moment. I usually would have said that it's not me, it's my vessel he is referring to. However, I am the one controlling its behavior.

I understand now. Dean is in love with me and doesn't realize.

"Dean, I'm not supposed to do this, but I already broke multiple rules, and we're hidden right now." I say. He looks at me confused, so I do what I was referring to. I bring my wings into his field of vision.

-Dean's POV-

I'm curious about two things: one, what rules did Cas break, and two, what is he about to do? Then I see his wings. They're black, but they're the most gorgeous black ever tinted with navy blue at the ends.

"Woah..." was all I could think to say. He looks at me and says, "Dean, I only show my wings to loved ones. Usually, that means family, but in your case, I mean romantically." He says. Wait, so how long exactly has he liked me? Oh well, he likes me back.

"Can I... Well, can I touch them...?" I know that probably breaks a million angel rules, but I want to know what they feel like. Cas nods and says, "I didn't bring them here for you to just look at." I bring my hand up and start... Petting them? I don't know. Either way, they're soft as hell.

-Cas's POV-

I would be in so much trouble if anyone saw us right now. But I love Dean, and I trust him enough with this. Him running his fingers through my wings felt nice. Sort of like a warm hug. Eventually, I turn to him and decide I wanted to kiss him.
I take his head in my hand and pull him closer to me. He makes the move and kisses me first, throwing me off guard.

Afterwards, I look at him and say, Dean, I know you usually like women, but-" "Yes, Cas. I don't care about that anymore. I want to date you." hearing that made me smile.

Then Sam walks in.

-Sam's POV-

I walk in to see Cas and Dean sitting on the bed close to each other. I assumed they had just made out. "Wow, look at you, Dean. You went from not believing in angels to dating one. I'm impressed." I said that just to mess with him. I was smirking and he just said, "Oh, zip it, Sammy..." Cas was smiling, too.

"Oh, by the way, I got you pie while I was out. You're welcome." I say handing it to him. I go to the bathroom to take a shower.

-Dean's POV-

Sammy actually got me pie for once. I took it out and offered to share with Cas. The rest of the day was All of us and Bobby hunting some weirdo monster, but I was happy. And dammit, I'm never happy like I am now. But I was happy.

A/N
Sorry if you don't like cursing, but this is Supernatural. They curse in the show, therefore I can do so here. Have a lovely day.