This because I had Jean Grey out having gotten her 90's costume from the blender and the default green one got boring. An Emma walked by and Jean says this:
"(mockingly) "You know, Emma, I can read minds with my clothes ON."
Sad, sad, sad. What Jean's really saying is she's not confident enough to display her beauty to the world like Emma is. The whole thing is meant to obviously be a putdown but reads as desperately jealous of Emma's perfection. Clothes on, really? The point is to be a strong woman not afraid of anything, and Jean is very much a second-rate woman trying to catch up to the goddess. Thought the whole line was amusing indeed!