Psychologically, foreplay lowers inhibitions and increases the emotional comfort of the partners. Physically, it stimulates the process that produces an erection in men, allowing them to penetrate an orifice. In women, it helps stimulate the process that leads to erection of the clitoris, raising of the cervix (elongation of the vaginal canal), and the production of vaginal lubrication, allowing penetration to take place comfortably and effectively. 

उद्दीपन (foreplay) मध्ये काय अंतर्भुत होते
संशोधन
वाटचाल (Progression)
क्रियाकलाप (Function) आणि परिणाम