"That's okay," you say soothingly, "Want me to walk you through it?"
She bites her lip and nods.
"Okay, well see those two smaller holes? Put your feet through the bigger top hole and then through the smaller ones, like you're passing through a tunnel."
Amanda sits down in a chair and puts her panties on the ground. "Through the big hole, into the little hole..." She whispers to herself, and ends up slipping both feet into one leg hole.
"No no, just one foot per little hole," you say.
"Oh..." She mutters, fixing the issue. She then beams and stands up, panties still around her ankles, "I did it! I put them on!"
"Not quite," you say, walking up to her, "You still have to pull them up."
She frowns and looks down, "Pull them up? But they'll just fall down again, won't they?"
You make an exaggerated sigh, then walk over to her, "No, they won't. Try it. All the way up until they cover your vagina and butt."
Amanda pulls up her panties... And you can't up but chortle a bit as you realize something.
"What?" She snaps, letting the panties drop to her ankles again.
"You really are hopeless," you say, "You got them on inside out. Take them off, fix it so the tag here is on the inside, and try again."
She groans, then takes them off and manages to get them right side in again. Then immediately hits another issue. "...Where do I put my feet again?"
You sigh again, "Big hole into small hole. And only one foot in each small hole!" You say as you watch her about to make the exact same mistake she made less than a minute ago.
"Are they on correctly now?" She asks, panties still around her ankles.
"Nope," you say, "One more step. What is it?"
She looks down at her panties in confusion, "Uh..."
"Pull them up," you say slowly.
She grabs the band of fabric between her feet like a handle and starts trying to pull them up that way.
"No, like this," you say, grabbing her waistband and pulling them up correctly. You don't have the heart (to the patience) to tell her that they're backwards now.
"Oh, so they cover my vagina!" She says, as if she just realized the solution to an algebra problem, "That makes sense. And my butt is covered this way too!"
"Yup. Though these ones are a bit big," you say, deciding you need to have a little fun with her after going through all of that, "They're only supposed to cover your butt crack."
"Oh..." She says with a frown, "Well, can you fix them?"
Thinking about it a moment, you walk around behind her and scrunch the fabric in the back of her panties together before spreading her butt cheeks and shoving as much of the fabric into her ass as you can, so that her firm cheeks are practically on display for you.
"That's kinda uncomfortable," she says, wiggling her butt a little at the minor wedgie you just gave her.
"Like I said, it's because this pair's too big," you reply, "Way too much fabric in the back to fit it all in there. We're going to have to find you a pair that fits better later."
"Okay," she says with an embarrassed nod, "Now, can you help me with the rest?"