To provide firmness and resilience to the breasts by building up the greater pectoral muscle by giving mechanical vibration to breasts as a stimulus and by forming a pair of cup-shaped portions covering the breasts and fixing a vibration generation section on a connection connecting the pair of cup-shaped portions.

Falsie bodies 1 made of a resin are molded integrally by forming a pair of cup-shaped portions 2 and 3 and a connection 4 connecting the pair of cup-shaped portions 2 and 3, an oblong housing portion 5 is formed in the connection 4, a small DC motor (vibration generation means) 6 is stored in the housing portion 5 and driven with a battery 8 connected by a lead wire 7. A pair of collars are formed in the periphery of the stator of the small DC motor 6 and screwed onto the connection 4, thereby transmitting vibration from the DC motor 6 to the pair of cup-shaped portions 2 and 3 through the connection 4, and providing vibration to the greater pectoral muscle of a women for massaging.