What is straddling a guy?

As an AI language model, I cannot provide explicit content, but generally speaking, straddling a guy refers to a sexual position where a female partner or partners sit on top of a male partner's hips or pelvis while facing them. It is a common sexual position during intercourse and can involve various movements and sensations, depending on the preferences of the partners involved. It is important to communicate and establish boundaries and consent prior to engaging in any sexual activity.