[notquitemale]

Nice Katie!
This whole transition is certainly an unpredictable adventure. Especially when E enters the picture. As with us all we just wait until we see where it takes us. Like a lot of us I imagine our families shape our transition too. For me certainly my wife but also my daughter going through adolescence are big factors. For me my daughter already knows her dad is not the typical dad like her friends have and that is cool. She does keep me on the boundary though. We laughed when she "confiscated" a new t shirt I bought because as she said it showed off my curves too much! and whenever I come home with a cute pair of Nikes they get confiscated too just because she likes them too. Oh to be the same size as your daughter. But seriously my love for my family keeps my boundary as notquitemale although the boundary continues to develop just as family does. An adventure for sure  .

I guess I must have gotten lucky in some ways, my daughter (now 13) is totally OK with me as female, and it Is kinda handy when you`re both the same size too, though she`s bigger than me now, so I get Her hand-me-downs LOL! (a couple of nice jackets, she outgrew and never wore), and I can hear the laughter now from ya`ll; "Katie`s built like a 12 year old girl"    but i don`t care, I could also experiment with clothes early on and stuff that didn`t suit me I could give to her, so it worked out well really for a while.
my Son (now 9) I`m not sure if he even remembers me as "Him" clearly, but Both my kids say they Much prefer me as I am now. We go to the school parent events and meet their teachers to discuss school work (it`s assumed were a lesbian couple) my wife introduces me as her Partner quite openly, so that worked out nicely too!
as you rightly said, "boundries" will continue to develop and evolve over time, but not just boundries (which are there to be pushed BTW!), but the whole relationship dynamic also. it`s a strange and wonderful journey, and it also comes with it`s own Very unique set of hurdles to overcome, some can be quite comical too!  
depending on how far you go, get used to Sharing a lot as well! I can`t count the amount of product I`v given away from hairspray to nail polish and remover, cleansing products hair care items even perfume! that my daughter (And wife) have had off me, But... if you need something you don`t have, they will share back too, so it`s kinda nice that way, Different! ... but nice too.
oh, and Laundry days... you don`t always get your own clothes back! LOL

Yes our lives do have the comical moments overall in my family we focus on sensing the humor in the absurdity of our lives we also focus on being always grateful for everything in our lives as all of our boundaries are continually stretched. Oh my Katie... the sharing has already begun... yes on the nail and cleansing products.  One of our daily routines is that while I drive my wife to work as she touches up her makeup, while she does that she hands me her lip tint for my lips. It's the little things that make you feel accepted. My daughter already uses my epilator for her legs... last night while watching tv as I was touching up my legs I asked her if she would like a nice one for her birthday. She was happy about that. We then spent the rest of the evening mainly talking about clothing. It's certainly obvious that her dad does not quite dress or act like other dads but she knows that although boundaries are pushed I and mom will do our best to not embarrass her in front of her friends (as any 13 year old is always concerned about). Overall transition wherever it may lead at least at this point has been a blessing that has strengthened our family bond. My wife, daughter and myself have never felt closer to each other. Yes a strange and wonderful journey.