The present disclosure provides an electric heating device which can provide persistent hot tactile experience in male masturbation and meanwhile keep the insertion passage tight as long as possible. The device includes a electric heating kettle having at least two masturbator chambers and one lubrication chamber, a coaster, a transfer pipette having long and thin tube, a electrical thermometer. The present disclosure also provides a method to use hot masturbators rotationally. The present disclosure further provides a lubrication bottle embed with a transfer pipette and electric heating function.
