"Flat chested sex dolls" from a gender studies perspective present an interesting paradox. The androgynous design of the life size sex doll both challenges traditional gender norms and potentially reinforces certain stereotypes. Surveys of flat chested sex doll users reveal that the motivation for choosing such products is often related to an avoidance of complex interpersonal relationships. The controllable relationship model offered by life-size sex dolls reflects a certain alienation in modern emotional relationships. Defining flat chested sex dolls as soul mates may imply disappointment in real interpersonal relationships and an attempt to reconstruct them.