Portal Jumpers (Shadow Hunters Book 1)

Callie is a girl out for an evening of meaningless sex when she runs into a cowboy named Vlad dressed all in black. Finding him a little odd, she is strangely attracted to him. He might even be someone she went to school with.
She discovers he has killed someone. It’s not quite that easy, it wasn’t him exactly. He claims to be from a different world. It might be a evil part of him that has split from him. She ends up harboring this handsome fugitive in her parent’s lake house.
She finds out he’s also running from entities from another world that could mean danger for Callie’s world and Vlad’s world. They escape through a portal into his world that is run by a Goddess. Sex is part of everything they do. Callie and Vlad are commissioned by the Goddess to form a team to fight the Shadow People and seal their portal.