I'm not sure how to handle this one well;
I came out three years ago as bisexual/polysexual, because I was confused about why I wanted to be with girls & dress more like guys (I actually thought I might be lesbian). My parents told me back then that I didn't know what I was talking about & that I'd grow out of it. (well I didn't). but they came around slowly & now accept me as their "kinda-gay daughter".

I'm coming into acceptance that I'm a guy, but my parents are pretty openly against GRS & people who think they're the wrong sex inside & out.
I don't know how to come out a second time to them without they getting very angry or worse, extremely disappointed in me...

Any ideas on how to gently come out to them a second time? 

live elsewhere if possible.