Glue a paper piece onto one of the lining pieces along the top only. (My lining fabric doesn't have a wrong side but if your using a print make sure you glue the paper to the wrong side of your lining piece.) Make sure the middle folds and the tops match up well together. Repeat this with the remaining paper and lining piece.

After the glue has dried (it will only take a few minutes) pin both pieces of the lining together, wrong sides out, along the bottom. Using a 1/4" seam sew this bottom seam. Repeat this for the outer fabric pieces.

Slide the lining inside the outer pieces, wrong sides together.

You will notice that the outer section is larger than the lining. In order to get the outer piece to fit around the lining the outer piece must be pleated. 

Line pin together the sides seams of both layers so the notches match up perfectly. 

Next, line up the notch you cut from the outer piece to the  edge of the paper in the lining and pin it there. 

Do that to all four notches and then pin the outside down as neatly as possible to the lining, making a pleat in in the middle of each side. Sew the lining and outer pieces together all the way around along this top seam with a scant 1/8" seam allowance.