One variation of an interaction module for a sexual stimulation device, including: a support structure including a metallic material and defining a bore; a vibratory actuator including a rotary motor, an output shaft, and an eccentric mass coupled to the output shaft; a housing enclosing the eccentric mass and the output shaft; a first isolator arranged over the vibratory actuator opposite the eccentric mass and configured to pivotably couple the vibratory actuator to the bore of the support structure; a second isolator coupled to the vibratory actuator adjacent the first isolator and configured to contact an interior surface of the bore of the support structure to define a pivot endstop for the vibratory actuator; and a sheath arranged over the vibratory actuator and a portion of the support structure.