Lip enhancement device and method

A lip-enhancement device can include a vacuum pump, a controller configured to control the vacuum pump, a pump housing structured to enclose the vacuum pump and the controller, and a mouthpiece reversibly and rigidly mountable to the pump housing. The mouthpiece can include a pump-housing-engaging side structured to reversibly mount to the pump housing on a mouthpiece-receiving side of the pump housing, and a lips-engaging side having a generally oval rim with a thermoplastic elastomer outer layer. The generally oval rim can bound a bowl, and the bowl can include a suction port providing fluidic communication between an interior of the bowl and an exterior of the bowl on the pump-housing-engaging side. The mouthpiece-receiving side of pump housing can include a suction connector structured to fluidically couple the suction port of the mouthpiece with the vacuum pump when the mouthpiece is mounted to the pump housing.