Exile's Hunter - Alien Mates: Planet Exile, #1

Kenzie will do anything to save her sister... even if it means teaming up with a dangerous alien who makes her heart pound. Kenzie has crossed the galaxy in search of her abducted sister and she's finally landed on Guerran. It's a planet full of criminals and she can trust no one, especially not the terrifyingly hot alien named Mad. He's as much a criminal as anyone on Guerran. And he's her only hope.
But she isn't sure whether she should kiss him or stab him when his presence makes her heat up with desire. Mad can't leave the exile planet. Once Kenzie finds Carise, the sisters will be long gone. There's no future between her and the hunky alien, no matter how quickly he steals her heart. How can Kenzie walk away when fate has put her in the path of her mate?