When a dress becomes too tight on the hip area, there are not a lot of options to alter it. Particularly if there is no fabric to speak of. This client had a brilliant idea to create tunic from a dress too tight at hips. All I had to do was unpick the side seams, create splits and voila.... the dress is now a tunic.
All you really need to do is wear stretchy pants underneath.
Happy altering
Judith