Tits and Boobies are types of birds. Is there any reason they would become slang words for breasts? : r/etymology

Ridiculous Terms for Women's Breasts Throughout History, by Kyrie Gray, History of Women

A New, Stealthy Kind of Protest Music - The New York Times

All About the Seabirds Known as Boobies, by U.S. Fish and Wildlife Service, Updates from the U.S. Fish and Wildlife Service

6 NSFW Images of Tits That Are Out of This World

PDF) Credentials: Breast Slang and the Discourse of Femininity

Which tits are your favorites? Bearded tits? Crested tits? Blue tits? Long tits? I love them all! (don't worry, its sfw) : r/funny

Boob Slang Art Print - Canada

All About the Seabirds Known as Boobies, by U.S. Fish and Wildlife Service, Updates from the U.S. Fish and Wildlife Service

British Tit Species for Identification on a Ceramic Mug - Canada