Silver Bush by JB Heller

He was my best friend. Then my lover. Until the day he became—oh hell no … my stepbrother.
My name is Tilly, and when I was seventeen I lost the love of my life because my mum and his dad did the nasty, made a baby and got hitched. It drove us apart, me into the arms of another and him as far away as he could get.
Now six years later, he shows up telling me he doesn’t care that he’s my stepbrother, that we share a sibling, or that I’m a single mum with three kids to a guy he’s always hated. He wants me back and he’s willing to prove it.
He has no idea what he’s in for… my kids are going to show him just how full on this parenting gig really is.
And I’m going to enjoy every minute of it.