Dr. Barun Kumar provides advice for first-time sex. He notes that the first time is often painful for women due to anxiety causing pelvic muscle contraction. For men, unrealistic expectations from porn can lead to premature ejaculation and inability to penetrate. He advises both partners to relax, enjoy the experience without expectations, communicate about anxieties, and go slow to allow the woman's body to accommodate penetration gradually through gentle thrusting and partial retraction of the penis. The key is not to stress about results as practice improves the experience for both.