In my experience, you should be fine! The thing I like most about Ariel is in my experience, I've primarily plotted with people OOCly through CR memes and on Plurk. This allows us to talk about boundaries or where we'd like specific threads to go. It's easy to put your kink list up with the typical "yes, maybe, no" categories, but it's easy-going to plot oocly as well.

While the character I play there isn't............ vanilla or soft in the slightest, I've certainly seen people take things on that way. You wouldn't be alone! The only real advice I have is be actively vocal about your wants. No one will really judge you for wanting to play softer kinks. :)