In Love with a Tycoon Series by Tracey Livesay

To avenge his mother's mistreatment at the hands of her upper-crust employer, self-made real estate tycoon Marcus Pearson needs entree into their exclusive world.  When D.C. socialite Pamela Harrington comes to him for help, Marcus realizes the golden admission ticket he's been seeking has suddenly fallen into his lap. Pamela will do anything to save her favorite cause, even agree to a marriage of convenience... moreTo avenge his mother's mistreatment at the hands of her upper-crust employer, self-made real estate tycoon Marcus Pearson needs entree into their exclusive world.  When D.C. socialite Pamela Harrington comes to him for help, Marcus realizes the golden admission ticket he's been seeking has suddenly fallen into his lap. Pamela will do anything to save her favorite cause, even agree to a marriage of convenience. The altruistic "it-girl" isn't worried about the pretend passion with Marcus turning real; she's sworn off powerful, driven men who use her for her family's connections. So she'll deny the way her pulse races with one look from his crystalline blue eyes.  And he'll ignore the way his body throbs with each kiss from her full lips.  Because there's no way he'll lose his blue-collar heart to the blue-blooded beauty. less

Commitment makes you weak. It's playboy Carter Richardson's motto. The only exception to the rule is his aunt, and when Carter learns she's terminally ill, he rushes to her bedside. Filled with fear and guilt—and desperate to ease his aunt's mind—Carter does the only thing a guy could do...he panics and blurts out that he's engaged to his aunt's enticing protegée.   Lauren Olsen has already had her heart crushed once by Carter... moreCommitment makes you weak. It's playboy Carter Richardson's motto. The only exception to the rule is his aunt, and when Carter learns she's terminally ill, he rushes to her bedside. Filled with fear and guilt—and desperate to ease his aunt's mind—Carter does the only thing a guy could do...he panics and blurts out that he's engaged to his aunt's enticing protegée.   Lauren Olsen has already had her heart crushed once by Carter. Against her better judgment, she agrees to keep up appearances—until Carter makes their “engagement” public in order to protect the family business. Now Lauren's torn between obeying her conscience, and obeying her desire. Because while she could never trust the womanizing Carter she once knew, she seems to be falling for the man beneath the playboy... less