First, like posters have said above, not very controversial. Second, as a MTF myself, this question is brought up with alarming frequency in my life. So speaking from that perspective, I'll say my sexuality is generally nebulous at this point but I generally find myself attracted to women, both cisgendered and transgendered. What really matters to me at that point is whether I'd be pre, post, or mid-transition during said fucking(with preference towards the latter two states). If you hadn't guessed by now I'd go with the fellow MTF.