Cammie's twin sister Cassidy is out of her frickin' mind. Get this; Cassidy wants to go on vacation with her fiancée. No that's not the problem; the problem is...her sister wants Cammie to cover her ass at work. You know, by playing the ol' Twin Switch-er-roo Game, like when they were kids. Yeah so maybe they were identical twins, back then, but now they're as different as night and day.First of all, covering her sister's ass will require Cammie to go back in the closet and pretend she's 'straight'. And what exactly will Cammie get out of this little adventure? Nothing! So why the hell should she do it?Double Shot is filled with typical bickering sisters, and of course, finding real love where you least expect it.