Positive. With two little lines on a pregnancy test, everything in Lizzy Rollins' ordinary life is about to change forever. And all because of one big mistake in Vegas with Ben Nicholson, the irresistibly sexy bass player for Stage Dive. So what if Ben's the only man she's ever met who can make her feel completely safe, cherished, and out of control with desire at the same time? Lizzy knows the gorgeous rock star isn't looking for anything more permanent than a good time, no matter how much…