"One woman asked Megan not to take her tail off, as her daughter thought Megan was a real, true mermaid. Megan had to sit on the edge of the pool and answer the child's questions such as ...

In the barely-there bikini, Sweeney strikes a pose that's all about confidence-arching her back and floating effortlessly, turning a pool into a ... straight out of a mermaid’s daydream.