Okay but imagine Dean using horribly cheesy angel-themed pickup lines on Cas when they start dating – just for shits and giggles – because Cas always responds to them with utmost seriousness in this adorably bewildered manner oh my gosh –

“Are you an angel? Because you’re the answer to all my prayers.”

“I’d appreciate it if you refrained from stating the obvious, Dean.”

“Am I dead, Angel? ‘Cause this must be Heaven!”

“No, Dean, this is Purgatory. Please do keep up.”

“Baby, somebody better call God, ‘cause he’s missing an angel!”

“I believe Father is fully aware of my whereabouts, but thank you for your concern.”

“Is it hot in here or is that just the Holy Spirit burning inside of you?”

“I’m inclined to believe that it’s the latter.”

“Can I take a picture of you to prove to my friends that angels do exist?”

“Dean, you do not have any friends.”