The prostate is a gland, located just below the bladder and sheathed in the musculature of the pelvic floor, the same muscles that contract during orgasm and ejaculation. The urethra runs from the bladder, directly through the prostate gland and out through the penis. The prostate gland plays a central role in the male sexual system. Within the gland, tiny ducts called acini produce prostatic fluid. This fluid mixes with sperm and fluid from the seminal vesicles to become the male ejaculate.
The prostate is part of the male sexual system. It was active and involved in every ejaculation you have ever had up to this point, you just may not have been aware of it! The contractions you feel just before ejaculation, when the muscles deep in your pelvis tense and relax spontaneously, activate the prostate and squeeze fluid from the prostate into the urethra. So the prostate is already part of your sexual experience – by stimulating it directly you are just accessing more pleasure and sensation from this important part of your sexual anatomy.
Some men enjoy direct stimulation of their prostate as a sex act – prostate massage and external prostate stimulation are highly pleasurable acts that men of any orientation can enjoy. Many men who love prostate massage report that they experience more powerful orgasms and more satisfying sex when they include prostate stimulation.