Abstract: An angled male member enlargement pump is disclosed, the pump including a transparent enlargement receptacle for receiving a male member to be enlarged; a unidirectional air flow valve for permitting air flow in only one direction, a pump chamber for pulling air along a longitudinal direction of the pump chamber; and an angled pump chamber for establishing and maintaining a substantially 90 degree angle between the one direction through the air flow valve and the longitudinal direction of the pump chamber. The enlargement receptacle includes a pressure relief assembly for allowing the enlargement receptacle to reach ambient pressure. To reduce pressure within the enlargement receptacle, a user moves the T-shaped handle so as to draw air through the unidirectional air flow valve, thereby removing air from the transparent enlargement receptacle. The angled pump chamber allows convenient and comfortable pumping motion while a male member is held within the enlargement receptacle.