Mending the Billionaire Movie Star by Bree Livingston

A woman hiding from her past, a celebrity desperate to fix his image, and the reality show that forces them together.
Penelope Cooper loves her single life. It’s safe and predictable. When her meddling twin sister, Paige, assumes her identity and auditions for Celebrity Proposal—and wins—Penelope’s life is upended. It’s either go on the show with the hunky movie star with a less-than desirable reputation or her sister could be in serious trouble.
Angus MacLachlan was Hollywood’s hottest leading man until a bitter, very public breakup with his agent—and subsequent bad behavior—ruined his image and tanked his career. Desperate to get back into his fans’ good graces, he agrees to be on the show, Celebrity Proposal.
Neither of them is looking for love, but as the weeks pass, they find themselves growing closer. Can two cold hearts warm up to love, or will the past keep them frozen in time?