My Duct Tape Dress Form

Yesterday, my daughter and my brother helped me with this product.DD taped my up and my brother cut the tape off the roll. The first layer of tape was black gorilla tape and the second layer was duct tape. Once the form was cut away,  it was stuff with batting. This morning I took the measurements of the dress form, the upper bust and the full bust measurement is four inches larger than my upper bust and full bust measurement.   I mentioned it to my hubby and he thinks that the gorilla tape expanded and he offered to help me make another duct tape dress form using duct tape only. What will I do without him? LOL! off to buy duct tape.