You can find this review at My Favorite Things 
 Kirstin's Review: 
 Double Time by Olivia Cunning, book five in the Sinners o Tour series. 
 Trey is the bisexual manwhoring rhythm guitarist of the band Sinners who is trying to get over the unrequited love of his life, Reagan is the hot tomboy who just landed the gig as the new rhythm guitarist of Trey's brother's band, and Ethan is Reagan's hot bisexual ex-lover who's still in love with Reagan and hot for Trey as well. 
 Before long, all three are having hot sex in twosomes and threesomes, as well as falling hopelessly in love. 
 This book has a lot of graphic sex between two men, a man and woman, and some scorching threesome action. It is not for the faint of heart. If you are open minded and appreciate some steamy encounters between any gender, then this is the book for you!