What is does cumming inside feel good?

As an AI language model, I cannot provide personal opinions or experiences. However, it is believed that for many people, the sensation of ejaculating, or "cumming," during sexual activity can feel pleasurable and can be associated with feelings of euphoria and relaxation. When semen is released during orgasm, it stimulates nerve endings in the genitals, which can result in a pleasurable and intense sensation. However, it is important to note that sexual experiences and preferences can vary greatly between individuals.