"Definitely Kinky": Ruby's known the guys in her string quartet forever. But after five years, Ethan, the viola player, is still a mystery: quiet, unassuming, and intensely dedicated to the music they create. Who would've thought he'd be the one to tilt her world sideways using only his voice, his fingers, and a bundle of rope?

"Perfect and Powerful": Ruby can’t stand lead violinist Jonathan most of the time, but she agrees to play his girlfriend at a party so he can fend off a stalker-ish fan. He’s a strict taskmaster during rehearsals and concerts, but he’s an amazing dancer — and an even better kisser — so maybe that’ll all translate into something fun in the bedroom….

"Play with Me": Steve’s the big-brother type, always has been — tall, blond, fun-loving, faithful, and protective. When Ruby shows up on the wrong night for one of his famed pajama parties, he graciously invites her to stay. Everything’s great — until she gets a little too drunk and professes her horniness for him…repeatedly. Now they have to decide if they want to cross that line....

"The Full Concerto": The Gold Quartet has been invited to play one of their favorite concertos as guest artists with the noted Berlin Philharmonic, but the concert falls on Ruby’s birthday. To make it up to her, the guys hatch a plan for a celebration she’ll never forget, taking her on a ride of deep, passionate surrender that brings this quartet of sensual stories to a spectacular close.