Accidentally Mine by Jenn Sable

Wes craves everything physical.
He especially likes how it feels to have the blood rushing through his veins as he strives to make women feel most alive when they are between his sheets. As long as there are no strings attached . . . it’s all just a bit of lighthearted fun.
Wesley, the middle son of the successful billionaire Brocker family, was voted most likely to never find his perfect match. This red-blooded alpha male is a natural protector of all he holds dear, including and most importantly his own heart.
He’ll know immediately once his Miss Right shows up. That’s how love works, right? You just know.
Things change when he is put on the spot by his best friend, who asks Wes to keep an eye out for his kid sister, Allison. She inadvertently caught the attention of Clear Creek’s hellraiser, Grant Beerly.
The thing is Allison Clark is the most serious young woman Wes has ever met, and she happens to hate him. Now Wes must keep Allison safe without her killing him and without him falling in love with her.