I like to think that using that specific stage dressing inadvertently unleashed the Curse of Tutankhamen's Tomb on RiRi, which actually would explain a lot about the rest of these outfits.
Don't like her shorty-shorts? Blame the curse!
"Sorry about the studs on these shorts. It's part of the curse. You know how it goes."
"My psychic thinks we might be able to ward off the curse with fire. Literal and sartorial. At this point, I'll try anything. A ladder almost fell on my head last night."
"Part of the curse involves your legs getting devoured by pythons on the regular. IT'S THE WORST."
"This curse is just really getting me down. I couldn't even get out my jammies today."
"Again, jammies."
"Yeah, more Curse Jammies. This curse is exhausting. You don't even know."
"That see-through bra top? CURSE. REALLY. I HAVE GOT TO DO SOMETHING ABOUT THIS? Do any of you know how to get rid of a Mummy's Curse? It's not a little mummy, either. It's like...a really powerful mummy. "
"Yeah, that's right. I'm heading back to the Valley of the Kings to settle this. This is my archeologist outfit."
"...it didn't work. Still cursed."
"The fact that I didn't actually show you all my riri makes me think maybe this curse is wearing off."
"...no, it's still pretty strong."

I just wanted to start with Klum in her most very covered up ensemble possibly ever, because you are about to be buffeted with a whirlwind of exposed limbs.
And other parts.

LEGS.
LEGS AND BOOBS! I actually think that, rather than Fug Madness, the title Heidi's REALLY fighting for is Boobs Legsly 2.0.
HIPS!
MORE LEGS.
In addition to limbs, she is really really into lace right now.
Lace, and cleavage.

And...whatever this is. Other than WRONG.