Sometimes I want to punch that smirk off Atlas McCallister's pretty face. He's cocky. A troublemaker. A pain. And, unfortunately, my stepbrother. We've been fire and kerosene since our parents got together, and to keep from exploding into fistfights, we've used challenges, dares, and bets to battle out our differences. Our past bets have been a little inappropriate—scandalous, even—but Atlas's latest bet has gone too far. Do I really believe if he loses, my straight stepbrother is gonna mess around with a guy? And not just any guy: me, his rival and nemesis?

Ash Summers is the most beautiful guy I’ve ever seen. He’s also a total d*ck, and I hate him more than anything. That feeling is mutual, by the way, as he does nothing but torment me. Oh, and did I mention he’s my stepbrother? Messing with Ash is all fun and games until our parents force us to room together during our final year at college. Sharing an apartment with him only makes me hate him more. Until it doesn’t.

Of all the people who could have seen me when I was at my most vulnerable, it had to be him. Caleb. My stepbrother and the golden child of our messed up blended family. We barely know each other, but for some reason, he takes care of me when an incident at the club leaves me helpless and alone. He hates me as much as I hate him, but something about his bossy attitude and unflappable calm soothes me. I don't want to want him, but no one has ever made me feel the way he does.

Finn is smart, adorkable, and his shyness pushes all my buttons. The problem? My interest in him quickly shifts from friendship to something less than platonic. Feelings I’ve been pushing down for years bubble up to the surface, and I find myself unable to see him as just a friend or keep my hands to myself. When a night out leads to some extracurricular fun, Finn and I decide to have a no-strings-attached fling. He’s the perfect person to explore my bisexuality with, and our chemistry is off the charts.

It's official: my step bro is the biggest himbo ever to himbo. He's a massive blond beefcake with a soft heart and an over-eager smile. The mere sight of him incites a shaking hot rage in me. He's everywhere. He's around me all the time. So sweet and gentle that it makes me feel wild. I see him and smell him everywhere. When I can't see him or smell him, I hear him. The wall between our bedrooms is paper thin. I can't help it—I hear what he does in his room when he thinks he's alone. I hear everything.