An exercise and muscle toning apparatus includes a first inflated spherical balloon adapted to hold a predetermined volume of air for providing resilient support, a second inflated spherical balloon adapted to hold a predetermined volume of air for providing resilient support, and a contoured chair adjustably and removably positioned on the first and second spherical balloons in such a manner that a back portion of the contoured chair conforms to a curvilinear circumference of the first spherical balloon while a seat portion of the contoured chair conforms to a curvilinear circumference of the second spherical balloon. The exercise and muscle training apparatus further includes hook and loop fasteners and a mechanism for preventing the first and second spherical balloons from separating beyond a maximum spatial distance.