Guarded for Pleasure (Pleasures Series, Book Four) by Lacey Thorn

River, Tara, and Kat met in the police academy and decided to forgo becoming cops and try life as private investigators instead. That easily, Angel Investigations was born.

Now, River is on the run from an ex-boyfriend who takes psycho to a new level. When he told her he always took care of what belonged to him, she never imagined he was referring to her.

When her ex finds her, River’s three sexy neighbors step in to help. Phil, Luke, and Rick have more than guarding her body in mind. They’ll guard her pleasure as well, and make sure she never wants again.