TIFU by asking if my wife wanted to have sex with me in knight armor

TLDR is the title, anyway, this all started a few months ago, I’ve always kind of noticed that my gf is not super into it when we are having intercourse, so I brought it up and she said it was nothing, that was until one night we were both pretty tipsy and she said that the only thing that turns her on sexually is robots. Like gundams from anime, (Think EVA for example) anyway she went on with that for quite a while. I should probably bring this up now but I love knight armor and have my own panoply (knight armor) that I love very much. So I joked that they might do the trick, she got very serious and fully agreed to try that and it was the best sex of our life that night.
The problem is that now we won’t have sex unless I’m in full knight armor. And recently she has been asking to include weapons play.