Her Dirty Secret by Melanie A. Smith

From award-winning and international best-selling author Melanie A. Smith comes the fourth book in a series of steamy contemporary romance novels. A forbidden affair that's practically irresistible... Emily Hoyt is often referred to as a "free spirit," but she knows that's just a nice way to say "flake." She doesn't normally let it bother her, but when her perfect big brother unexpectedly announces he's gotten married, Emily once again feels the pressure to be more than the meandering musician she is. Alessandro Giordano is the lying, selfish bastard Emily had pegged as bad news. But when they meet at the engagement-turned-wedding celebration, they're both looking to escape, and the instant chemistry they have pushes them together. Is their attraction just a diversion, or could it really be more? Note: Book Four in this series can be read as a standalone but should be read in order to avoid spoilers.