Forever Your Touch by Apryl Baker

Mason Kincaid is a player.
He learned from the best—his brothers. He knows he’s a good-looking bastard and isn’t afraid to use his baby face on the ladies.
Life is sweet until he receives a call from his best friend begging Mason to look out for his baby sister, Josephine. A babysitting job is not on his list of things to do, but Keith is like a brother to him, and he can’t say no.
Then he meets Josephine and feels like a fifteen-year-old fanboy. Josephine isn’t just Keith’s little sister—she’s Mason’s favorite YouTuber, and Keith damn well knew it. The bastard probably laughed his ass off.
Celebrity crush or not, he takes his role as her fill-in big brother seriously, and he immediately understands Keith’s dislike of Jo’s self-centered boyfriend. The more time Mason spends with her, the harder it is not to beat the asshole black and blue. And the harder it is to guard his heart.
Before long, the player is played. He falls in love with a woman who is not only taken, but seems to truly love her boyfriend.
But Mason is a Kincaid, and Kincaids don’t back down. He’s determined to change his manwhore ways and show Jo what it means to be treated right, cared for, and loved, even though she fights him with every breath.
Can he convince her to listen to her heart before it’s too late—and they lose the one thing they’ll never find again?