The Starstruck Saga: Volume One: Books 1-3. The Starstruck Saga: Boxset, #1

You hit ONE guy with a car and suddenly you're trapped in an unending space adventure. In Starstruck, an incident with a hot-air balloon causes college-dropout Sally Webber to lose her job, and she sets off to find direction in her life. Crashing into a teleporting alien was not on her to-do list, and now Zander won't stop reeling her into life-or-death situations to save her planet, as he waits for his laser-wielding sister to search the universe for him.
In Alienation, Sally Webber's dream comes true when Zander takes her out for a night on the town--on a planet hundreds of light years away from Earth. But when an accident separates her from her alien tour guide, she's thrown into the seedy underbelly of an insane city where nothing is as it seems. In Traveler, Sally's search for Earth doesn't get off to a good start: chased out of her hotel room and into the broom closet of a spaceship, she becomes a stowaway on the Alliance Flagship, Traveler.
But when sabotage and murder show the crew's true colors, Sally, Zander, and Blayde are forced to stay and help them out of their mess. Read three full-length novels in one boxset.