A hot and hilarious best friend's little sister romantic comedy! Look, it wasn't even my idea. But that's hardly an excuse for agreeing to teach my best friend's little sister how to win a man. But like I was going to let some other guy in the city help the deliciously awkward and ridiculously sexy woman figure out the ways of men? My unquenchable (and very secret) desire for Harper aside, she's my good friend too. What's the big deal if I give her a fake (but it feels real) kiss on the street? Or if I help her learn how to dirty text. Except, I wind up learning all sorts of wonderful things too. Like, the fact that she has a naughty mind too and wants to put it to good use. With me. I should say no to her newest hands-on request. Spoiler alert-I don't. And soon I'm giving the woman I've secretly wanted some no strings attached lessons in seduction. The trouble is the more nights I spend with the off-limits woman in bed, the more days I want to spend with her out of bed. And that's not part of the lesson plan for my best friend's little sister.