Erotic roleplay is the only reason I still use Twitter, but I’ve been phasing out for BlueSky. (It’s also the main reason I use Discord.) The only reason I haven’t used Mastodon for it is because I haven’t found anyone actually doing it on Mastodon.
Maybe there are some communities out there I’m unaware of or they’re using different hashtags. Have you found any?
What is HentaiAndRoleplay?
But even then, I prefer forum/DMs for RP, not necessarily chat. Lemmy DMs aren’t great for it though I’d imagine as it doesn’t show the history of the conversation with someone.