Several average-looking science fiction characters stand before a rupture in the fabric of reality.
Mentor: Don’t go through there! It leads to the mirror universe, a dangerous place where everyone you know is evil and sexy.
Protag 1: That’s good advice, but now I’m morbidly curious.
Protag 2: And I’m horny. Let’s go.
They walk through.
On the other side, shocked versions of themselves are covered in thick outfits from head to foot.
Mirror Protag 1: Invaders from the mirror universe!
Mirror Protag 2: Wow, we look sexy.