Abstract: A modular male sexual aid device includes a housing, a plurality of ring segments, and an end cap. The housing includes a base and a pair of walls. Each of the walls extends longitudinally between a bottom end and a top end. Each ring segment is removably connected to one of the walls of the housing such that the central passages of the ring segments define a masturbation passage. At least one of the walls of the housing can be pivotally mounted to the base such that it is movable between an upright assembled position and an outwardly extending disassembled position. The end cap is removably connected to the top ends of the walls such that the walls are prevented from rotating outwardly away from each other.