So I need to come out to family.
OK... I'm in a bit of an unusual situation here. I hope this explanation isn't too confusing. I've been FT for two years and I'm out to my Mom's side of the family. My father's side I just don't see much at all (and not since FT). The few I keep in contact with (only my siblings), I've done so via e-mail. My father doesn't even know! I haven't seen him for 10 years, so he doesn't play a role in my life anyway. I have two sets of siblings. I have two older siblings on my Mom's side (Jeremy and Janice); I see them regularly, obviously they know. Then I have another set of younger half-siblings from my father's second marriage(oldest Jesse, Jake, and sister Jenn); they live in another state.
Of my younger half brothers (Jesse and Jake) and sister (Jenn), I came out to the oldest (Jesse) recently and he took it amazingly well, immediately addressing me in the correct pronouns and name. We now chat pretty regularly. The middle brother (Jake) has heard that I transitioned and has verbalized that he's OK with it (to my older brother, Jeremy), but I haven't been able to talk with him about it. The youngest sister (Jenn) is 14 and in 9th grade. She's the one I'm worried about. I think she'll be OK, but how do I soften the blow in a way a 14-year-old can understand and accept.
The twist: They want to stay for an entire weekend with me at my oldest brother's house (Jeremy)... in 2 WEEKS!!!!!
So how do you come out to someone face to face when, with one look at you, your gender is obvious (and opposite from when they last saw you)?
I last saw them about five years ago. I was a hyper-masculine male, I worked out a lot, and I didn't act femme at all. Since then, I've started HRT, totally transitioned, my voice is female, I have bewbs! I mean...I can't go to the youngest one and say, "I'm going to transition." or "I'm TS and I'm starting hormone treatment." I can't call with a girl voice! If I just surprise the at the airport, Jenn is probably going to ask why I'm wearing a skirt and have bewbs?!
Should I send an e-mail? Should I send links explaining it and end with "see you soon!" LoL
The middle younger brother (Jake) is in his late teens and I hear is a baddass.

I'm worried he's gonna get all homophobe on me.
This is gonna be a weird weekend. How did I paint myself into this corner?!?!