@whoipretended2b I hadn't developed much more of this idea, but ask and you shall always receive. Just Wednesday I was researching porn production and the experiences of actors.
I see Castiel here as someone who uses social media in small spurts. He isn't that interested in it and refuses to have a social media manager ghostwriting. When he is on, he posts whatever he wants. A praise to a local coffee shop he found that kept him fueled while filming a condensed indie project. Random questions better suited for an internet search that he instead asks his followers, like "My car shakes when I'm stopped. Video attached. How much of an issue is this?"
Castiel's co-star Meg, whom he dated after the film and is now amicable with, sent him the post. He reads it while out to dinner with his publicist Hannah and two of their friends. Castiel shows it to her for a laugh and she just shakes her head. A few minutes later he's typed out his response and turns his phone again, and it's a "Castiel no" "Castiel yes" exchange before he posts it.
It takes an hour for it to gain slow traction, but then it's exploding. Side-by-side photos of Castiel and Dean for comparison's sake (promo images and film stills of Cas in blue jeans and a red work shirt, sleeves rolled up on thick hairy forearms. Portraits of Dean, white shirt left open to show his soft abs and shaved belly). Arguments over which of the two would bottom with added photos of Castiel from his first role at 23, thinner and clean-shaven like Dean. Mostly sexual or suggestive comments, fan arguments, and lazily written online articles.
Dean started as a gay model at 22, having moved to California when his younger brother went to Stanford. He signed his first film contract with the same studio when he was 23, and began adult content creation at the same time. He'd thought it would be a side gig while he tended bar but it took up more time than he thought. He made enough money to pay rent and live off of, but it was far from cushy (especially not wanting to escort). He thus started filming more, earning $500-750 for each project. He spent his time on set, working out, seeing Sammy, and hanging out with studio guys, steadily building a devoted audience. By the time he was 27 he had enough revenue from content creation to let his studio contract lapse. He moved to a family property in Lebanon, Kansas because it was dirt cheap and started independently collaborating with other creators.
Dean invited 90's porn legend Roy Van Helsing (Benny) to his house for a three day hang and shoot. They've been friends for years but never filmed together. They're both posting a fair bit, and within their communities they're booming, but only really across gay porn. Then somehow a shitpost makes it back to Castiel, and Castiel fucking tags him in a reply.
The popularity explodes Dean's subscriptions and tips. Dean initially feeds the frenzy with some backlogged personal content he had on hand, then works on some more. The studios he filmed with were pushing his stuff too, and while he didn't earn a cent from them it drew more people to his site. By the third week he's getting a bit tired of it, all of the social media interaction and feeling pressure to be active. Until then the most he's made in a year was $14k, and this month he'd already gotten $7k. He decides to stop replying and queues posts for the upcoming week.
Throughout the little internet meltdown Castiel and Dean have been texting. It began with an apology from Castiel, a DM saying he thought it was an obvious joke and didn't intend for it to garner much attention. Castiel's never commented about a relationship in his career, making a point to be private about his life. The media frenzy after his and Meg's relationship leaked was horrible for him, as they were hounded and he felt personally betrayed and violated. They remained together for three years, but ultimately stress from the incessant stalking and harassment contributed to their breakup. Nearly a decade later, the mere acknowledgement of another guy was enough to start back up the old rumor mill.
Dean messaged back saying not to worry. And it's kind of nuts having one of his celebrity crushes in his DMs—albeit under kind of embarrassing circumstances, but he can't help himself. He sends another message quickly after, saying how much he liked the movie and Castiel's character. He figures that it's the only time he'll get the chance to really chat: that they'll both ignore the public attention, maybe Dean will post something like "yeah it was a funny reply but it was clearly a joke, thanks for liking my porn though", they'll move on. But Castiel replies and it doesn't just feel like he's humoring a pathetic fan (even if that's how Dean sees himself). Castiel says he hasn't seen the full movie before but it's flattering that it meant so much to Dean. They keep chatting about movies, because Dean loves them and Castiel's absurdly unaware.
The conversation doesn't die out the next day, another surprise to Dean. Castiel has a free evening so he decides to watch his old movie, messaging Dean during parts of it. Dean excitedly adds his commentary and Castiel shares tidbits from filming.
Dean and Castiel become friends while Dean soft retires from entertainment. Dean tries to switch to a cooking account, sharing his favorite tricks and mainly focusing on making cheap, filling meals. Job options are just about limited to remote work in Lebanon and he hopes his pivot is livable. He doesn't quite have to start his fanbase from scratch; a very small number of his audience follows, but the lingering social media attention helps garner outside viewers. Reading some of the grateful comments means a lot. Dean gets to be a little more himself, an unexpectedly positive thing. He's used to his public image being a character far removed from who he is. Now he just narrates his cooking and wears whatever he wants. Still keeps busy at the gym but feels like he's working out for his health and enjoyment rather than to maintain an exceedingly difficult litheness at 27. He doesn't have to spend half an hour shaving his face, chest, balls, and ass. It's still work, but it's lighter.
Maybe on a trip back to Cali to visit Sam, Castiel asks to meet up. Maybe next time it's Castiel coming to Dean's property in Lebanon. Maybe they film a collaboration cooking episode Dean doesn't end up posting, because Castiel's "innocent" crowding of Dean's space makes the "kiss the cook" print on Castiel's apron come true.
Just one interpretation of how it could go :)