One wedding. One week. One forbidden love. When Hayley Hancock returns home to serve as her high school best friend's bridesmaid, she expects drama but not the kind that comes with falling for the bride's younger brother. Returning to Cheyenne's world is like stepping into a different dimension. The Cox family oozes old money, and Hayley needs a lifeline, a distraction, anything to make it through the wedding week with her sanity intact. Connor Cox. Cheyenne's younger brother, is no longer the bothersome teenager Hayley once knew, having transformed into a charming, confident rock star. The attraction is instantaneous. What starts as playful banter becomes something dangerously real. Something neither of them can resist. The simmering chemistry between them transcends the social barriers that separate them. But a romance between Hayley and Connor is complicated. The Cox family, with their rigid expectations and judgmental eyes, would never approve. And Connor, despite his undeniable attraction to Hayley, has responsibilities and commitments to his band. Set against a backdrop of luxury weddings, family expectations and sensual temptation, My Best Friend's Brother is a forbidden, steamy, age-gap romance that proves that some love stories are worth breaking the rules for.