The Best Friend's Contract

This is book 1 of The Best Friend's Contract. 

Aidan, a billionaire, and CEO of Empire is known for the title 'Top 5 Hottest Bachelor' for two reasons. His extremely good looks and for not wanting to get married, at least until he reaches forty but his mother keeps on setting him on unwanted dates, leaving him frustrated.                             

Kenna, Aidan's best friend, is a doctor who has never found the right time for love. She has always been busy with work to an extent that she forgets about her own life.                               

Both of them have always been close ever since they were kids, after a single incident that happened, instantly making them inseparable. As they grew older, things began to change yet best friends are forever . . . no matter the circumstances.                

What happens when Aidan sets up a contract and wants Kenna to be a part of it?