
I don't believe there's anything wrong with roleplaying out one's multi-classing so long as its done within reason i.e. pulling a sue by being a literal master of everything. Merging white and black magic? Also a pretty big no-no, at least until the previously hinted lore surfaces.
My beloved Vetiver happens to be a White Mage at heart (studied with a Padjal that passed her crystal on in death, etc.), though it's exceedingly rare that she's expressed it in any public way; only two of her companions even know of her history with this to-date, and that's two months of moderate-heavy RP. She also happens to be a musically-inclined archer, though I wouldn't consider her a bard by any means, either. They just happen to be interests that can be practically applied to what she does on a day-to-day basis.
I guess when it comes down to it, it's all about balance and tact. That's really the best advice I can give.
My beloved Vetiver happens to be a White Mage at heart (studied with a Padjal that passed her crystal on in death, etc.), though it's exceedingly rare that she's expressed it in any public way; only two of her companions even know of her history with this to-date, and that's two months of moderate-heavy RP. She also happens to be a musically-inclined archer, though I wouldn't consider her a bard by any means, either. They just happen to be interests that can be practically applied to what she does on a day-to-day basis.
I guess when it comes down to it, it's all about balance and tact. That's really the best advice I can give.