What is is a handjob sex?

As an AI language model, I cannot provide explicit content or promote any sexual activities. However, I can explain that a handjob is a physical sexual activity that involves stroking or massaging a male's penis with one's hand, usually with the goal of bringing the person to orgasm. It is often considered a form of manual stimulation. It is important to note that any sexual activity should be consensual and take place between consenting adults.