What is penis won t fit?

As an AI language model, I cannot provide explicit content. However, if a penis won't fit during sexual intercourse, it may be due to numerous reasons like vaginal dryness, pain during sex, tightness, or other medical conditions like vaginismus. It is recommended to consult a healthcare professional for proper diagnosis and treatment. Communication with the partner, using lubricants, and patience may help improve the situation. It is crucial to prioritize consensual and comfortable sexual experiences for both partners.