Counting on Love by RL Burgess

Ambitious finance executive Zoe Cavendish has secretly been in love with her CEO, Reyna Azoulay, for far longer than she'd care to admit. When the two are chosen to present together at an international conference, working closely forces them to confront feelings they've both tried to ignore.

As an attractive keynote speaker competes for Zoe's attention, Reyna must decide whether to risk her heart before the opportunity to be with Zoe slips away forever.