Discolor her clothes with fire.

Crono whisers an idea in Lucca's ear.

"Well....that COULD work, I suppose. If she'll do it."

"What?"

"Crono wants you to let me singe your clothes with my flame toss tech."

"ARE YOU CRAZY!! I'D BE BURNED ALIVE!!!!"

"Well, you'd have to take them off, of course."

"You want me to stand naked in the ICE AGE?!!?"

"It'd only be for a minute, tops. This flame gets pretty hot. Besides, I can make you a fire while you wait."

Marle blushed. "But....no one's ever seen me...nude before..."

"We won't look, right Crono? Crono? CRONO?!"