Sarah M. Anderson 
Straddling The Line [EPUB ebook] 

All her life, Josey White Plume has sought one thing: to fit in with her Lakota family.She has no time for some sexy rich guy and his pursuit. But she can’t stop thinking about businessman Ben Bolton – can’t stop wanting him…Yet falling for a wealthy outsider will destroy everything she’s worked for – unless she can find a way to straddle the line between his world and hers.