Winter Exchange

This one is a bit long, so hope it still holds everyone's interest ^^.

While I like body swaps, I particularly like personality swaps; where people act like some else (esp. someone of another gender). As such, I've always liked the relatively scarce 'role exchanger' stories about a mysterious, alien intelligence that exchanges traits both physical and mental between people at random. The Role exchanger sprung to mind when I saw the white flare in this pic.

I was initially going to go without the physical transformation, but decided to add one in the end.