A vehicle seat assembly having a lower seat assembly with a lower sitting surface and a seatback with a seatback sitting surface. At least one of the lower seat assembly and the seatback is adapted for movement. The seat assembly also includes at least one bolster adapted for movement to thereby change curvature of at least one of the lower sitting surface and the seatback sitting surface. The bolster automatically moves due to movement of at least one of the lower seat assembly and the seatback.