More than our straight brothers, I think, gay men often take an experimental, playful approach to sexuality, and consider good sex both a necessity and their birthright. As men explore their sexuality, some find their interests gravitating towards more intense erotic experiences. It may be a desire to surrender control to another person, or to be in control, or to explore some fantasy. Other men find that they like the intense stimulation that comes from firmer, rougher touch. You are not alone.
People have many reasons for enjoying power sex.
There is a lot of individual variation in the kind of touch people find erotic. Similarly, a squeeze or swat that would annoy or irritate one man might send another into shivers of ecstasy. For instance, the man whose job requires spending the workday making decisions may find that in the bedroom he wants someone else to be in charge. To surrender control to another person can be deeply intimate, as can being the one who receives that surrender. In our society, taking charge is seen as masculine behavior.