Just get some extra shells an you'll look like a proper upright mermaid!
Yeah, we know, sometimes it's hard up here on land, having to use your two legs and all, but it's worth it. See, the skirt fits tight around the thighs, and then falls to the floor around the knees, so it looks just like a mermaid tail! No? Now doesn't that feel more natural? For instance, you could wear our Adult Mermaid Costume. That always makes us feel better.