Ent3rnal_
Sienna Calloway has never lost a bet.
Confident, charming, and effortlessly popular, she knows exactly how to get what she wants. So when her best friend offers her two hundred dollars to make the quiet, guarded Iris Monroe fall in love with her before the end of the month, Sienna doesn't hesitate.
It's nothing personal.
At least, that's what she tells herself.
Iris isn't interested in popularity, parties, or people who hide behind perfect smiles. She's spent years building walls around her heart, and the last thing she expects is for the most well-known girl in school to suddenly take an interest in her.
But persistence has a way of breaking down even the strongest defenses.
As fake conversations become real, stolen glances turn into late-night phone calls, and pretending becomes impossible, Sienna finds herself trapped by the one thing she never planned for-falling in love with the girl she was only supposed to win.
She gets the money.
She wins the bet.
But when Iris discovers how it all began, Sienna learns that some victories cost far more than they're worth.
Because once someone's heart is broken...
"I'm sorry" isn't always enough.