Ruffle plunge neck one piece swimsuit

I bought this black one piece swimsuit from ASOS France while I lived there and I have only worn it once since (not in water, just by the pool) It is in almost perfect condition. It has a deep plunging neckline, a very low cut strappy back, & somewhat high cut legs. The first picture is not the exact swimsuit, as mine ties in the middle for adjustable fit 😊 The other 3 pics are the actual swimsuit! It's super cute, but not meant for my size large self 😔 listed as size 4 US, would fit XS or S.