Methods: Thirty patients that will be undergoing bilateral prophylactic skin-sparing mastectomy with immediate implant-based breast reconstruction will be identified from the practice of two plastic surgeons. Preoperatively, women will be undergo sensory testing to the 4 quadrants of both breasts and the nipples, including testing for tactile sensation, cool detection, 2-point discrimination, heat-pain detection threshold, and sharp-blunt discrimination. A custom-made survey to evaluate erogenous sensation will be completed by the patient, as well as the validated BREAST-Q.