Kincade, Sierra. Body work trilogy #1

"Anna never takes on a massage client without screening him first, but the paycheck offered by billionaire Maxim Stein is too good to turn down. Stein is the richest man she's ever laid her hands on, and despite the risks, she trusts that she can take care of herself. After all, she's handled difficult clients in the past. What she isn't prepared for is getting caught in a compromising situation by Maxim's tall, dark, and gorgeous bodyguard--or the desperate desires he awakens in her... Alec is dangerous. The mysterious, hard-bodied man is completely irresistible and won't be refused, no matter what walls Anna puts up to protect herself. But as Anna falls fast for his careful ministrations and mind-blowing skills, she begins to realize that giving herself over to a man with so many secrets isn't just putting her heart at risk--it's endangering her life" --