My son came out to me a year ago when his long term best friend asked him out. His boyfriend was agoraphobic at the time, so it was really just an online relationship and not physical. Then a girl, who described herself as gender fluid, starting spending a lot of time in their online chat. Since then, the girl has become transgender and now identifies as a boy. She/he was at college with my son and asked him out (they are 17). Now all three are in a poly relationship. I know he has been having PIV sex with the trans boy. Today all three have been up in his bedroom and engaged in sexual activity together. I think I am pretty broad minded but I am really uncomfortable with this. Am I being unreasonable?