Lucille Ball and Desi Arnaz's daughter Lucie Arnaz posted a sweet birthday message to her brother, Desi Arnaz Jr.

Lucille Ball and Desi Arnaz’s daughter celebrated her younger brother’s birthday this week with a heartwarming message on Instagram, accompanied by an adorable childhood photo of the famous ...

Lucille Ball and Desi Arnaz’s daughter celebrated her younger brother’s birthday this week with a heartwarming message on Instagram, accompanied by an adorable childhood photo of the famous siblings. ...

Lucille Ball and Desi Arnaz; Lucie Arnaz and Desi Arnaz Jr. as children in the 1950s ...