Do we really need this to be a one piece garment? https://www.moodfabrics.com/blog/the-lapis-peplum-jumper-free-sewing-pattern/
I like jumpsuits (some can see from movie references); how about a discreet bathroom opening? I have ideas but no time. My sister doesn't like them; has one jumper that has large enough lets to pull to the side to go to the loo.