What is when a guy cums fast?

As an AI language model, I do not have personal opinions or experiences. However, premature ejaculation is a common sexual problem that affects many men. It occurs when a man ejaculates sooner than he or his partner would like during sexual intercourse. The duration of sexual intercourse is subjective and can vary between couples, but on average, it is around five to seven minutes. If a man ejaculates before or shortly after penetration, it is generally considered premature. This can cause embarrassment, stress, and relationship problems for both partners. Many treatments and techniques are available to address premature ejaculation, including behavioral therapy, medications, and changes to sexual techniques or positions.