Recently discovered my attraction to tg. MTF can’t really explain it and don’t know exactly

few years back and two girlfriends ago I experienced something different but exciting. My gf liked fantasize about having another male in the bedroom with us. Her fantasy was to watch another man or tg go down on me. That started it. I would consider doing most anything that turned her on.

That naturally progressed into me going down on him. I said I might have a problem with it unless she was tg and looked fem. then I would consider it.

Well she’s gone but that thought still lingers