He Watches Me by Cynthia Sax

She desires to be seen.
He wants to watch.

Anna Sampson has a naughty secret. Every night, she slips into her neighbor's yard and swims naked in his pool. She fantasizes that the dynamic young billionaire watches her nightly nude aquatics, his brilliant green eyes gleaming with lust.

She discovers this isn't pure fantasy. Gabriel Blaine has been watching her via his security cameras, and now that he has returned to L.A., he doesn't plan to stop. That's all he wants—to watch. Anna knows she shouldn't allow him and she certainly shouldn't want more, but she craves Blaine's attention, needing his gaze fixed on her body.

Part One of The Seen Trilogy

We all have that secret fantasy that is inside us.  Ms. Sax brought it to life in this wonderful book.  Anna and Gabriel both have secrets that they hide but they are drawn together into their secret world by the pool.  When he gives her the gold key to the gate, to me it was almost like he was giving her the key to his world.  This is a must read trilogy for those that love a little mystery in their books.