As might be expected, the title of this Frasier episode concerns the lifelong sibling rivalry between Frasier Crane (Kelsey Grammer) and his brother Niles (David Hyde Pierce). This time, the bone of contention -- actually bones -- are Frasier's new girlfriend, Poppy (Katie Finneran), and Niles' latest sweetie, Regan (Gigi Rice). For reasons that make sense only to themselves, each Crane brother is convinced that the other has designs on his girl. ~ Hal Erickson, Rovi