Chloe Kinkaid is the younger half-sister of Cassidy Ann Sloane and Courtney Sloane. She is the third daughter to Clementine Sloane-Kinkaid and the first to Stanley Kinkaid. Chloe was born a month early during the 'summer' section of the third book, Dear Pen Pal. Cassidy is shown to be unsure about wanting a baby brother or sister at first, but she ends up loving Chloe. Cassidy had to write letters to the baby while her mother was still pregnant, as a punishment for a prank she played on Savannah Sinclair. Cassidy's affectionate nickname for her is 'monkey face', because Chloe often scrunches up her little face like a monkey. However, Mrs. Sloane-Kinkaid dislikes this nickname and often scolds Cassidy for it. Chloe grows into an adorable toddler in the book Wish You Were Eyre.