Step 1:
The paper is 20x20 centimeters and a little darker on one side.
Prefold in half, then fold over the upper line.

Step 8:
Fold over these four lines.

Step 6:
Fold the upper part in half

Step 11:
This is the other side. Fold to the left, use tape or glue.

Step 10:
Prefold in half

Step 9:
Fold along the edges.

Step 5:
Press flat.

Step 7:
This is the other side, fold in half again.

Step 3:
Prefold.

Step 2:
Fold over this line

Step 4:
Fold over these two lines.

Step 12:
Mountain-fold over the yellow line and glue both parts together, see arrow.

Step 13:
Fold over this line

Step 14:
Fold over this line.

Also nice:
This Origami mini skirt is folded out of a paper with denim texture

Left picture:
Paper dollhouse livingroom with Origami furniture

Done!
This is an Origami video tutorial for making the wrap skirt: