Well, coming out as being bi wasn't a big surprise to my family, considering both my sisters have experimented, that was rather uneventful, but coming out as transsexual was... odd...
I came out shortly after a stay in the local mental ward for a suicide attempt (Nice quiet places to think are good for sorting oneself out) To my eldest sister first, she's pretty much a princess, into celebrities and the like. She was... pretty thrilled really, like I was going to be a doll to her or something.
Next was my other sister, who I REALLY dislike, she's probably the second biggest antagonist in my life, she took it well, considering she's a massive Tomboy, having one's gender not entirely match one's sex is not a foreign idea to her.
Next I told my mother... who... I really needed to explain it to... She didn't understand it at all, and it was more like I was educating her than coming out. In the end though, she was in disbelief, claiming I never acted particularly feminine... Which I still laugh about today, considering she's the most masculine person I know personally. Eventually she sorta wrapped her head around it (It's been 5~ years since, she still doesn't totally get it) and at that point, she started to fear for me, and my safety, knowing all the bad rep that transwomen get in society and all...
I told my father last, he's a bitter, angry, spiteful little man, a total bigot... needless to say he was pretty pissed... Mostly (I think) because he lost the opportunity for his last name to be carried on, and the loss of a son (He's a sickeningly unjustifiably proud man) There's been more than a few times where he's been drinking, and would of feared for my life if he wasn't about 3/5ths my size. Being about 5 years since I came out, he's only just now starting to refer to me by my preferred name/pronouns... Mostly to avoid confusing my 2, and 3 year old nieces... I don't think he'll ever fully accept me for who I really am, and up until just a week ago, that bothered me.
I didn't really have any friends at the time, just the one really. When I had come out as being bi, all my friends save for one bailed on me, and he was okay with me coming out as transsexual, and has always been very supportive.
Coming out as pansexual after coming out as being bi was a logical progression considering I'm transsexual, not much arose from that.
But being poly, and into BDSM, that was rather interesting, but not really related to the topic.
Also, it was international coming out day a few weeks ago, I wonder if anyone here took advantage of that?