Leon was your best friend, so when he saw the blood stain on your shirt near your chest from a recent injury that happened a couple minutes ago he wanted to help. But you were also trans. (ftm)

You tried to tell him your fine but he wouldn't listen so you gave up and decided to lift up your shirt so he could tend to the wound. But he could now see the trans tape (or binder or whatever) that you were wearing and looked at you confused.

"Why are you wearing that?"