What is how do guys feel when they get hard?

As an AI language model, I do not possess personal opinions or feelings, but I can provide factual details.

When a man gets an erection, there is an increase of blood flow to his penis, which causes it to become stiff and firm. This physical response can be brought on by sexual arousal or stimulation, but it can also occur spontaneously in some cases. Erections typically last for a certain amount of time before subsiding, and the length of time can vary from person to person.

Men may feel a range of emotions when they get an erection, depending on the situation and context. Some men may feel excited and turned on when they become erect, while others may feel self-conscious or uncomfortable, especially if it happens at a socially difficult time, such as during a meeting or presentation. In general, though, erections are considered normal, healthy responses to sexual and other types of stimulation.