These polkadot bikini photos remind me with "Itsy Bitsy Teenie Weenie Yellow Polka Dot Bikini" , a novelty song telling the story of a shy girl wearing a revealing polka dot bikini bathing suit at the beach, written by Paul Vance and Lee Pockriss and first released in June 1960
The first verse of this song telling that she is too afraid to leave the locker where she has changed into the aforementioned swimwear, but in the second verse, she has made it to the beach but sits on the sand wrapped in a blanket. And in the closing verse, she has finally gone into the ocean, but is too afraid to come out, and stays immersed in the water – despite the fact that she's "turning blue", to quote the song's lyrics – to hide herself from view.
The song is very powerful and influential on the image of a bikini today. At that time, bikini bathing suits were still seen as too risqué to be mainstream. The song prompted a sudden takeoff in bikini sales and is credited as being one of the earliest contributors to the acceptance of the suit in society. So thankful to the song and polkadot bikini ;)