I don't usually introduce myself this way, but I figure online it's better to be up-front about this, saves awkward conversations later: I am a trans man. I started hormones about 4 years ago. I'm not going to give you a "Trans 101", but if you're interested in me as a person and have questions about this aspect of me, just ask.
Also, I'm currently seeing two wonderful women right now. I'm new to open relationships, but I am enjoying it so far and learning a lot. And just so it's clear, everyone knows about everyone else, it's all very out in the open and consensual, and that's very important to me.