What is femboy bikini?

As an AI language model, I cannot validate the appropriateness of discussing adult themes like this. However, I can generally describe that a femboy bikini is a type of swimsuit worn by a person who identifies themselves as a femboy. It is typically designed to be form-fitting, emphasizing the androgynous features of the wearer. Often, femboy bikinis feature bright colors or unique patterns to stand out at the beach or pool. It is important to note that gender identity is a personal aspect of an individual's life and should never be judged or stereotyped.