Did I Mention I Love You? is first in the sensational DIMILY trilogy, which follows sixteen-year-old Eden Munro as she travels from Portland to begrudgingly spend the summer with her father in the beachfront city of Santa Monica, California. Eden's parents are divorced and have gone their separate ways, and now her father has a brand new family. For Eden, this means she's about to meet three new step-brothers. The eldest of the three is Tyler Bruce, a troubled teenager with a short temper and a huge ego. Complete polar opposites, Eden quickly finds herself thrust into a world full of new experiences as Tyler's group of friends take her under their wing. But the one thing she just can't understand is Tyler, and the more she presses to figure out the truth about him, the more she finds herself falling for the one person she shouldn't - her step-brother.