Speedo Women's Hydro Amp Volt Back One Piece Swimsuit

So...I'm over 40 years old people. I want good butt coverage. The age group swimmers can get away with less coverage, and they look great! But not this lady. This swim suit rides up horribly bad, but looking at the age groupers, I think that's supposed to be the design. It looks so great on them....not so great on me. kinda looks my butt is trying to escape sideways on either side. This is not good. The last thing I need is to look more spread out back there. I am 5'4 1/2 " (the 1/2" is important), and weigh about 130 lbs. 32 D. I got the size 32. The piping also does some weird things to a more mature (aka "softer") body. Back to the drawing board to find another suit for practice.