Keisha Johnson, an African American woman, gained fame in prison for having the world’s largest breasts at 164XXX cups, each weighing 40lbs. Originally a D cup, she underwent three surgeries, including now-banned polypropylene string implants. Despite their size, her back remains unharmed due to dedicated exercises. Keisha plans to reduce her breast size and updates fans on Instagram as the “queen of boobs.” This remarkable transformation occurred within the confines of prison.