Masked Desires by Gina L. Maxwell

She’s wanted her brother’s best friend for years. Tonight, at the New Year’s Eve Masquerade Ball, she’ll seduce him and finally make him hers…by the stroke of midnight.

Maggie:
Since the night of my 18th birthday when we shared a forbidden kiss, I’ve waited for Jonah Warner to act on the chemistry that’s always sizzled between us. But his loyalty to my brother—his best friend and partner on the police force—means he’s done everything but slap an “Off Limits” sign on my chest.
Now, after returning from living in France for several years, I showed up to our town’s annual New Year’s Eve masquerade ball with a single-minded purpose: get Jonah to kiss me at midnight. But when the Playboy of the Bellview PD doesn’t recognize me—and actually starts hitting on me—I decide to take advantage of the situation. All I have to do to get what I want…is let Jonah Warner seduce me.

Jonah:
I’ve wanted my best friend’s little sister forever. Like way longer than what’s f*cking appropriate, but I can’t help it. Believe me, I’ve tried. I do my best to distract myself with other women. It’s only a short reprieve from my indecent thoughts about Maggie Clark, but it’s a welcome one all the same. I thought I was hooking up with a gorgeous mystery woman tonight to do just that. Until I recognized the same little sound I heard all those years ago when I kissed Maggie.
I should be mad at her for tricking me into taking things past the point of no return, but I’m not. How can I be when she tastes so damn good and her body responds to me like she’s already mine? So I take her up to my room and stake my claim on every part of her, and to hell with the consequences, I’ll deal with them later.

Except they don’t wait for later, and when Maggie’s brother barges in on us post-dirty deeds, my betrayal could be what shatters the bonds we all share, for good.